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TEM Aligna 4D User Manual

Modular rack case version
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®
Aligna
4D User Manual
User Manual
®
Aligna
4D
Modular Rack Case Version
Version 2.4
TEM Messtechnik GmbH
Grosser Hillen 38
D-30559 Hannover
Germany
Tel.: +49 (0)511 51 08 96 -31
Fax: +49 (0)511 51 08 96 -38
E-mail:
info@TEM-messtechnik.de
URL:
http://www.TEM-Messtechnik.de
(07.06.2009, 09.07 2020)
1 / 84

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  • Page 1 ® Aligna 4D User Manual User Manual ® Aligna Modular Rack Case Version Version 2.4 TEM Messtechnik GmbH Grosser Hillen 38 D-30559 Hannover Germany Tel.: +49 (0)511 51 08 96 -31 Fax: +49 (0)511 51 08 96 -38 E-mail: info@TEM-messtechnik.de URL: http://www.TEM-Messtechnik.de...
  • Page 2 ® Aligna 4D User Manual 2 / 84...

  • Page 3: Table Of Contents

    ® Aligna 4D User Manual Table of Contents Introduction ....................... 7 ® Block Diagram Aligna 4D ................10 Short Description of the Front Panel Elements ..........11 Principles of Laser Pointing Stabilization ............. 12 Reasons of Pointing Instabilities ..............12 4.1.1 Thermal properties of the laser itself ..............
  • Page 4 ® Aligna 4D User Manual Repetition Rate Categories ................ 32 6.1.1 CW Lasers ......................32 6.1.2 CW Lasers with Intensity modulation (5 kHz to 200 kHz) ........33 Pulsed Lasers with Slow Repetition Rates (1 Hz … 3 kHz) ....... 33 6.1.3 Pulsed Lasers with medium repetition rates (3 kHz …...
  • Page 5 ® Aligna 4D User Manual 10.5 Configuration "Beam Alignment Scope" ............. 72 11 Safety Instructions ..................73 12 Delivery content....................74 ® 12.1 Delivery content Aligna : ................74 12.2 Delivery content PSD 2D: ................74 12.3 Delivery content PSD 4D e: ................ 74 12.4 Delivery content PSD 4D i: .................
  • Page 6 ® Aligna 4D User Manual 6 / 84...

  • Page 7: Introduction

    ® Aligna 4D User Manual 1 Introduction Laser beams, used in an experiment or in industrial applications, can move in space by many reasons: 1: thermal drifts inside the laser, movements by frequency detuning, by power variation 6: moved optical elements (delay lines, switching mirrors, Laser motorized telescopes,...)
  • Page 8 ® Aligna 4D User Manual Detectors) with various types of sensors (wavelength, beam diameter, resolution, dimensions, QUAD detectors, duo/tetra lateral PSDs, or CCD/CMOS cameras) are available. In some applications a 2D stabilization (instead of 4D) may be suitable. In this case only one 2D scanner BamScan 2D is necessary.
  • Page 9 ® Aligna 4D User Manual rectangular broadband mirror 15 x 20 x 2.5 mm, in rectangular corpus Half-inch mirror, rectangular corpus ® Aligna also can be controlled by a PC or by other electronic devices within a control system. In this case both the 2D beam position and the 2D beam direction can be set by the control system;...

  • Page 10: Block Diagram Aligna 4D

    ® Aligna 4D User Manual ® 2 Block Diagram Aligna ® In the following, the block diagram of the Aligna 4D electronics is described. Note: This chapter is preliminary: It still contains additional information related to former ver- sions. Two 2D sensors “PSD 2D” (or one 4D sensor “PSD 4D”) detect both 2D position (“X”, “Y”) and 2D angle (“”, “”) of a laser beam.

  • Page 11: Short Description Of The Front Panel Elements

    B search! manual station 1 tw o-point-O Alig na ® position OK Aligna 4D 3.1 locked TEM Messtechnik GmbH SN 2033 (Demo DPG10) center! station 2 Release 16.02.2010 piezo active ® 4D Be amLock S yste m...

  • Page 12: Principles Of Laser Pointing Stabilization

    ® Aligna 4D User Manual 4 Principles of Laser Pointing Stabilization Reasons of Pointing Instabilities Laser beams, used in an experiment or in industrial applications, can move in space by many reasons. Even small movements at the laser outlet may result in rather large movements of the laser spot, depending on the distance to the target, and on the optical components in the beam path.

  • Page 13: Thermal Effects Of Optical Elements

    ® Aligna 4D User Manual long distances helps, of course, but even small effects at the path from the laser outlet to the vacuum tube will be transformed to large effects at the end of the (long) tube. Please note, using evacuated tubes may cause drifts depending on local air pressure variations.

  • Page 14: Or 4D Stabilization

    ® Aligna 4D User Manual 2D or 4D Stabilization? The movement of a collimated beam can be separated into four dimensions: two translational ("X", "Y") and two rotational ("", "")   These degrees of freedom are not really independent: If, for example, one mirror holder drifts by 100 µrad due to the change of the room temperature the translation error of some µm will be negligible compared to the beam diameter of let's say some mm close to the mirror.
  • Page 15 ® Aligna 4D User Manual Target Beam Splitter  Laser 2D Position Detector  in the position of an image of the target Pointing Drifr and Fluctuations In principle this works. But: The detector has to be positioned in an exact (!) image of the target.
  • Page 16 ® Aligna 4D User Manual As a result, the PSD 4D detector box has to be aligned just coarsely. It can be fixed firmly without the need of precision alignment mechanics. The exact reference optical axis can be controlled by electronic signals, instead of fine mechanical alignment! Of course a 4D lock system needs a little bit higher effort in the electronic system, compared to a 2D system (two 2D detectors, two actuator mirrors), but: ...

  • Page 17: Positioning Of Actuator And Detectors

    ® Aligna 4D User Manual Positioning of Actuator and Detectors In the following, we will discuss different setups to get the best setup of positions of the piezo- controlled mirrors, the motorized mirror mounts, and the 4D detector system. It is obvious that the detection of the beam movement has to be located BEHIND the actuators. Otherwise a movement of the actuators cannot be observed by the detectors for pointing correction in a closed servo loop.

  • Page 18: Setup 3: High Reflecting Mirror Acts As Beam Sampler

    ® Aligna 4D User Manual  A glass plate may cause interference effects due to multiple reflections between surfaces. Because of this effect, glass plates with a small angle (wedge plates) are preferred. However, they cause a (very small) angle deviation from the original direction. ...

  • Page 19: Setup 4: Only One Beam Sampler Mirror

    ® Aligna 4D User Manual 4.3.5 Setup 4: Only One Beam Sampler Mirror In a similar setup, a (nearly) non-polarizing 50% beam splitter (plate or cube) is introduced behind a non-moved high reflecting mirror, used for coupling out the test beam. This avoids the diffi- culty of using the mirror at A2 both as mirror AND as beam sam- pler.

  • Page 20: Distance Between A1 And A2

    ® Aligna 4D User Manual What is the Best Setup? Some Selection Rules ® All of the described setups can be realized with the Aligna 4D (using PSD 2D or PSD 4D, different types of beam samplers). The user may decide which fits best to his application. However, there are some rules for selection: 4.3.8 Distance between A1 and A2 The distance between A1 and A2 defines the possible compensation of the beam translation...
  • Page 21 ® Aligna 4D User Manual Beam Sampling The sampling of the beam used for 4D measurement of the main beam is a fundamental issue, and very often, it is the limitation of the final precision. The beam will be stabilized related to the 4D detector.
  • Page 22 ® Aligna 4D User Manual 4.4.2 Uncoated or AR Coated Sampler Plates A safer method in terms of predictable results and defined conditions is using a sampler plate (for exam- ple of fused silica, uncoated or AR coated). However, one has to be very careful with interference effects: front and back side surface reflections have nearly exactly the same intensity, and are normally extremely parallel.
  • Page 23 ® Aligna 4D User Manual 4.4.3.4 Short Distance Wedge Plate If there is not enough space for this distance (especially, if the beam diameter is large), the wedge plate can be oriented vice versa, so the part beam from the front and from the back surface combine approximately the position detector chip.
  • Page 24 ® Aligna 4D User Manual lasers with rotating polarization, or lasers which have been combined via polarizing couplers.. In a variant for rather big beams, one folding mirror can be used as a concave focusing mirror. This replaces the PSD lens for the "far field" or "angle" detector "A". Here again a wedged or an un-wedged sampler plate may be used.

  • Page 25: Some Typical Configurations

    ® Aligna 4D User Manual 5 Some Typical Configurations In the following, some typical 2D and 4D configurations are discussed. In particular, we think about rather long beam paths between the laser and the target. In the examples, we will mostly use beam sampling mirrors (BSM). Alternatively, we can use wedged beam sampling plates (WBSP).

  • Page 26: System

    ® Aligna 4D User Manual (If the mirror was located far away from the laser -or the main source of drift, resp.- the beam might not hit the mirror due to even small miss-alignments or drifts.) The laser itself may have pointing drifts. Additional drifts and fluctuations will appear along the long beam path.

  • Page 27: Auto-Alignment And 2D Stabilization

    ® Aligna 4D User Manual If the laser drifts or fluctuates, this setup gives an additional advantage: the whole beam path between the mirrors also benefits from the stabilization. (Often additional optical components, like telescopes, frequency doublers, etc. are located between the active mirrors. If in contrast both mirrors are located near the target (as mentioned in former chapter) the 4D pointing at the target will be stabilized as well, but the whole beam path before the second active mirror will "see"...

  • Page 28: Auto-Alignment And 4D Stabilization

    ® Aligna 4D User Manual In the next step this tube entrance beam position is held fixed, and by means of a suitable OCL matrix the angle of the beam is scanned in X and Y (orthogonally or in a special search spiral shape), until a detector at the outlet of the tube is hit.

  • Page 29: Overlaying Two Laser Beams, Commonly Stabilized Path

    ® Aligna 4D User Manual The "angle" detectors of beams "A" and "B", "PSD AA" and "PSD AB", will be located close to the target, while the "BeamPosition" detectors "PSD BA" and "PSD BB" are located near the lasers. They are also used for automatic combining alignment, in cooperation with an "AimPD", acting as a conjunct "electronical iris".

  • Page 30: Overlaying Three Laser Beams With Commonly Stabilized Path

    ® Aligna 4D User Manual Overlaying Three Laser Beams with Com- monly Stabilized Path Laser A In the following, the same procedure is sketched for three overlayed Laser B beams with a commonly stabilized long path. Laser C All beams "A", "B", "C" are overlaid Overlaying of Three Beams at the tube entrance, by help of DBC1...

  • Page 31: Comparison Of Some Setups

    ® Aligna 4D User Manual 5.10 Comparison of some Setups As a comparison, some basic setups are discussed now. Beam sampler types of 4D detector setups: Objective B‘ A‘ Target High reflecting mirror as beam sampler Weakly reflecting beam sampler plate Defined displacements due to changing or scanning the angle or position servo setpoints;...

  • Page 32: Pulsed Lasers

    ® Aligna 4D User Manual 6 Pulsed Lasers ® Aligna can handle both cw (continuous wave) and pulsed lasers. However, for best performance, pulsed lasers may need other detector electronics than cw lasers. ® The standard actuators of an Aligna system are piezo driven mirrors with first main reso- of 0.5 …...

  • Page 33: Cw Lasers With Intensity Modulation (5 Khz To 200 Khz)

    ® Aligna 4D User Manual 6.1.2 CW Lasers with Intensity modulation (5 kHz to 200 kHz) ((Demodulation, PSD LID … Description in preparation)) 6.1.3 Pulsed Lasers with Slow Repetition Rates (1 Hz … 3 kHz) Those lasers are the most difficult to handle: The information of the momentary pointing is only available with the laser repetition rate.

  • Page 34: Pulsed Lasers With High Repetition Rates (>15 Khz

    ® Aligna 4D User Manual To reduce this effect we carefully match the time constants of the networks around the detec- tor chip and the transimpedance amplifiers. However again, this can only be done to a certain extent because of some position depending asymmetries of time constants of the detector signals of the PSDs.

  • Page 35: Input Crosslink Matrix (Icl)

    ® Aligna 4D User Manual 7 Input CrossLink Matrix (ICL) ((Chapter and pictures on input orthogonalization, in preparation, see also chapter on "Learn- ing OLCM" (Output CrossLink Matrix for Motors))) 8 Output CrossLink Matrix (OCL) ((Chapter and pictures on output orthogonalization, in preparation, see also chapter on "Learn- ing OLCM"...

  • Page 36: Setting Up An Aligna

     two irises to define the target beam path TEM offers the "Aligna Plug'n Play Kit", which is a test system as described above. Aligna Plug'n Play Kit The acrylic glass parts of the Plug’n Play Kit connect magnetically, and each connection is individually numbered, which makes the setup easy and fast.
  • Page 37 Switch on the regulator Stabilization should work immediately, if the setup is similar to the setup used for setting the default parameters at TEM Messtechnik GmbH before delivery, or if you use the delivered Plug'n Play Kit. If the setup is different, it will probably be necessary to modify some parameters: ...

  • Page 38: Cable Connections

    ® Aligna 4D User Manual 9.1.1 Cable Connections: Plug'n Play Kit "Motorized" "PSD 1" laser PSD 4D to BLM / SPM module "M1" to motor driver module "M2" screen iris 2 iris 1 beam sampler "target" Cabeling a motorized system to piezo driver module piezo actors...
  • Page 39 ® Aligna 4D User Manual If the laser has its own power supply: Connect laser power supply to the laser (laser should glow now). In the case of a system, including Motorized Mirror Mounts (MMMs): o “M1” connector at rear  “M1”cable  MMM “M1” (first actuator mirror in the beam path) o “M2”...
  • Page 40 If the setup in use is similar to that, which was used when setting the default parame- ters (at TEM Messtechnik GmbH before delivery) the system should stabilize now an- gle X/Y and position X/Y going to 0,0,0,0 positions at the X/Y scope screen.

  • Page 41: Setting Up The Aligna System By Help Of Kangoo

    ® Aligna 4D User Manual ® 10 Setting up the Aligna System by Help of Kangoo ® The alignment of the parameters of an Aligna system is performed by visualization, control and automatic alignment procedures in the Kangoo software. (However you can control the system with other control software, like LabView, TestPoint, or other programs, written in VisualBasic, VisualC, C++, C#, ...) 10.1 Some basic Kangoo features "Kangoo"...

  • Page 42: Sections

    ® Aligna 4D User Manual To change the value of these parameters there are different alternatives.  The most convenient way is to use the mouse wheel, when the mouse is located at the device position (without clicking the left or right mouse button). (It is strongly recommended to use a mouse with a mouse wheel, even at laptop computers with sense pad.) Even very fine or coarse changes can be realized:...

  • Page 43: Further Kangoo Functions

    Aligna system. Many of the features are described by HelpFiles, available by the menu items "Help / ...". (If you have questions regarding further use of Kangoo, please don't hesitate to ask TEM for additional information!) 43 / 84...

  • Page 44: Main Aligna Configurations

    ® Aligna 4D User Manual ® 10.2 Main Aligna Configurations ® In the following, we will describe some of the main configurations, useful for Aligna systems. Depending on the individual hardware, there are special configurations, which control and visualize the different features. (Thus, some of the described configurations will not fit to your individual hardware combination.) 10.2.1 Configuration "Aligna User Menu"...

  • Page 45: Configuration "Beamlock Basic

    ® Aligna 4D User Manual 10.2.2 Configuration "BeamLock Basic" ® Configuration "BeamLock Basic" is for general use of Aligna systems or even PSD systems (without actor control or servo loops) The following sections are mainly used: (unneeded sections are "shrunk", indicated as a but- ton at the window bottom) ...
  • Page 46 ® Aligna 4D User Manual  The Output CrossLink Matrix (OCL) allows the actuators to achieve a nearly pure angle or position movement of the beam. A parallel beam movement, e.g., is achieved by an an- gle displacement of the first actuator and an angle displacement by exactly the negative value of the first.

  • Page 47: Some Common Sections

    ® Aligna 4D User Manual 10.3 Some Common Sections In many application-specific configurations (graphical user interface), there will be identical or at least similar sections, as shown in the "Basic" configuration; some of them are described now: 10.3.1 PSD Input Section The "active"...

  • Page 48: Psd Input Section

    ® Aligna 4D User Manual ever, too low signals (< 0.5 Volts, e.g) will degrade the precision (due to offsets, noise, etc.). Excessively high intensity leads to non-linearities, and incorrect position measurement. (For displaying the intensity in physical units (like mW, Watt, etc.) see below!) "Dot Size"...
  • Page 49 ® Aligna 4D User Manual fluctuates, the clipped amount of light will vary, which leads to an apparent position fluctuation. This will be (wrongly) compensated for by the servos due to a position correction. "AutoGain" forces an automatic setting of the PSD gain values, so the measured intensity values are in a valid range (e.g.
  • Page 50 ® Aligna 4D User Manual which gives two main advantages: 1. The display is less confusing. You can observe the real drift, which might be small compared to the shot-to-shot noise. 2. The motors will remain at rest if the AVERAGE pointing stays in rest. This leads to a better beam stability (see below: MotorWork Threshold).

  • Page 51: Physical Units" Section

    (position and angle). Then the parameters are scrolled, until the correct physical value (in [mm], or [mrad]) is displayed in the "physical units" section. For this procedure, TEM provides calibrated elements (40x40x40 mm cubes including glass plates). The "Position Calibration Cube" contains a (very parallel) glass plate at an aligned angle, which introduces a well defined position displacement (for example 2 mm).

  • Page 52: 3D Beam" Section

    ® Aligna 4D User Manual using "UnitsB = mm".) In some applications, however, both detectors A and B are used for angle measurement. In this case, "f PSDb" has to be set to the correct focal length of lens B. "f Objective"...

  • Page 53: 3D Beam" Section

    ® Aligna 4D User Manual 10.3.6 "3D Beam" Section With the help of the "OutOffsets (motorized)" you can turn the four actuators of the two MMMs (motorized mirror mounts), like you would do manually (but much finer) (Please remember: You can scroll the values with the mouse wheel. Using the Shift, the Control and the Alt key the scrolling can be done much finer or more coarsely.

  • Page 54: Hidden Parameters" Section

    ® Aligna 4D User Manual Note: The "PosOK" threshold is given in the unit "Volts". Thus if the displayed units in the XY display is "mm" or anything different from "Volts", and the scaling of detector A and B are different, "PosOK"...

  • Page 55: Oclm" (Motors Output Crosslink Matrix) Section

    ® Aligna 4D User Manual 10.3.9 "OCLM" (Motors Output Crosslink Matrix) Section As discussed in the general description of 4D beam pointing stabilization the de-coupling of the four degrees of freedom is done by the so-called "output crosslink matrix" (OCL matrix). It defines the combination movements of the four output actuators, which has to be done, if one of the fundamental movements (for example a position movement in X direction, or an angle movement in Y direction) shall be performed.
  • Page 56 ® Aligna 4D User Manual 40 mirror mounts are used, the transformation of motor units to mirror angle movement will differ by a factor of two, because of different dimensions. It depends on the orientation of the mirror mount, whether a positive x (or y) motor movement will cause a positive or negative beam angle movement.

  • Page 57: Alignment Of The "Oclm" Matrix (Output Crosslink Matrix Of Motorized Actuators)

    ® Aligna 4D User Manual 10.3.10 Alignment of the "OCLM" Matrix (Output CrossLink Matrix of Motorized Actuators) The OCL matrix (both OCLP for piezos and OCLM for motors) can be aligned manually (by changing the matrix elements) or -much more convenient and more precise- by automatic OCL learning procedures.
  • Page 58 ® Aligna 4D User Manual Aligna Plug'n Play Kit Prepare the system as described in "Setting-up a Test System"  Cable Connections  ® Switch on the Aligna rack case  If your test laser can be switched between cw and pulsed, start with cw mode ...
  • Page 59 ® Aligna 4D User Manual  Choose "Learn Program: Motor OCL" (The system will learn the OCL for the motor servos) (Section "OCLM (Motors Output CrollLink Matrix" will be visible)  Click “measure Matrix!”, which starts the learning procedure: If "autoGZ" is set to "Z+G autoZero and autoGain before learning" is set, first the system will perform a “PSD AutoAll”...
  • Page 60 ® Aligna 4D User Manual Measured Total Matrix, is close to Unity Matrix The measured Total Matrix shown here is close to a unity matrix (close to "1" in the diagonals, close to "0" in the off-diagonals). (Normally the section "Total Matrix" is hidden, it can be un- shrinked for observation.) The average deviation of the measured total matrix from the aspired unity matrix is displayed.
  • Page 61 ® Aligna 4D User Manual The signs are correct now; however, there are remaining errors in the gain values. The system will calculate an improved OCL, again. In the next measurement, you get a nearly perfect result: The measured values (dark) are nearly identical with the set values (bright). NOTE: This movement is done WITHOUT the servo loops! This is called "feed-forward".
  • Page 62 ® Aligna 4D User Manual forward" control. The "feed-back" loop, performed by the servos, is responsible for the re- sidual errors of the feed-forward control. Measurement with larger distances: Higher deviation from ideal curves, but nevertheless working well. 10.3.10.7 Switching on the (Four) Motorized Servos Now the system “learned”...
  • Page 63 ® Aligna 4D User Manual 10.3.10.9 Comments on some Effects: Some effects, which lead to a non-ideal behaviour, are described now: 10.3.10.9.1 Residual angle movement while position movement As you see in the example OCL measurements above (marked as “very good result”) you see remaining measured angle values (red and green), even if only position is scanned (blue and yellow).
  • Page 64 ® Aligna 4D User Manual 10.3.10.9.3 Nonlinearities In the example measurement, you see a difference between the blue and the dark blue trace (set and measured position Bx). In this setup, it is a property of inserted lenses, which are not hit exactly in the center.

  • Page 65: Alignment Of The Piezo Ocl Matrix Oclp (Piezo's Output Crosslink Matrix)

    ® Aligna 4D User Manual 10.3.11 Alignment of the Piezo OCL Matrix OCLP (Piezo’s Output Crosslink Matrix) This chapter is only important for you, if you got a piezo actuator-based (PiA) or a motor AND piezo based Aligna system (MoPiA). In principle, the learning of the piezo OCL ("OCLP") is rather equivalent to the motor's OCL ("OCLM").
  • Page 66 ® Aligna 4D User Manual the mirror mounts with your finger tips the position and angle dot will go out of the display range immediately.) After one or two learning cycles, you will get a result as shown below: Compared to the motorized learning the signals (of the feed-forward measurement) are noisier and have larger offsets.
  • Page 67 ® Aligna 4D User Manual not to use the actual matrix for the next measurement, but to start with the unity OCL matrix. (Click button "OCL=1".) Increase " PsdPiezoAmplifA " and "...B", and start a new measure- ment. After learning the Piezo OCL switch back "UnitsA" and "UnitsB" to "Volts", "mm", "mrad", or so. (In near future we will supply you with an even more automated procedure, which does these corrections on its own.) 10.3.11.11 Switching on the Piezo Servo...

  • Page 68: Storing And Recall Of The Individual Parameters

    (Menu item "programming uC / edit uC Scripts"). It is stored in a file "TEM / UserData / <UserNameDataFolder> / uC Scripts". This file contains a script procedure named "Intro", and a second one, which is called "De- faults".

  • Page 69: Defining The Hardware-Specific Parameters

    Usually you will confirm: "OK, save". Now the changes parameter values will be updated in the "uC Scripts" file. Now the actual parameters are saved to the scripts file (located in the TEM / UserData folder in the PC), and you are asked, if you want to flash the data permanently to the uC: If you confirm, the FlashLoader is started, EEPROM block #7 will be erased and block #7 (containing all individual parameters) is flashed to the EEPROM.
  • Page 70 LCD_Line1$= " Aligna 5.2 " LCD_Line2$= "TEM Messtechnik GmbH" SN_Customer$= "SN 2167 Demo TEM III" Release$= "Release 02.03.2013 " ' --- some Flags for controlling actual configuration (without need to change the complete script) --- .Beams= 1 ' actual Configuration for OneBeam (1) or TwoBeam (2) system .RefDetectors= 0 ' 0: no Reference detectors, 1: 1x 4D or 2x 2D, 2: 2x 4D or 4x 2D...
  • Page 71 ® Aligna 4D User Manual 10.4.3.13 Manual edition of the Script "Default" You can also edit all relevant parameters manually. NOTE: Most of the numerical parameters inside the µC are handled as integer values. Even if the display in Kangoo might be in decimal values (displayed Value "PSD A gain" is 12.34 [%]) the command to the µC is given as integer ("PsdAgain= 1234").

  • Page 72: Configuration "Beam Alignment Scope

    ® Aligna 4D User Manual 10.5 Configuration "Beam Alignment Scope" … ((Setup procedure description will follow…)) 72 / 84...

  • Page 73: Safety Instructions

    ® Aligna 4D User Manual 11 Safety Instructions The device is manufactured according to the International Laser Safety Standard IEC 825- 1:1993 and complies with US laws FDA 21 CFR §1040.10 und §1040.11. DANGER! The device should only be opened by appropriately trained personnel. Before opening, the supply cable must be disconnected from the mains.

  • Page 74: Delivery Content

    ® Aligna 4D User Manual 12 Delivery content ® Please check the Aligna system on delivery for damaged or missing items. ® 12.1 Delivery content Aligna  ® Aligna Control unit  ® Aligna User Manual  If a piezo-based system was ordered (PiA or MoPiA): SubD25 ...

  • Page 75: Delivery Content Motorized Mirror Mounts (Mmms)

    ® Aligna 4D User Manual  Unless otherwise agreed, and MoPiA (Motorizes AND Piezo Actuators) are ordered, the BeamScan OneInch are mounted onto the Aligna60 Motorized Mirror Mounts. 12.6 Delivery content Motorized Mirror Mounts (MMMs): Depending on the ordered system, you have got following items ...

  • Page 76: Technical Data

    ® The Aligna system has been designed for operation in laboratory environment with a tem- perature range between +15 °C and + 45 °C. The system is not to be operated in a hazardous environment. Avoid exposure to heat, or to emissions of other electric equipment. Protect the system against humidity, dust, aggressive fluids, or vapors.

  • Page 77: Detector Properties Psd 2D (Detector A, Or Detector B)

    2mm x 2mm, 12mm x 12mm, others on request Rise time of the detectors 10 µs, or filtered, regarding ordered laser rep rate (of other detector variants: 1 µs, 2 µs, please contact TEM Messtechnik) Filter bandwidth limitation: 10 kHz, selectable detector case size:...

  • Page 78: Aligna 60 Motorized Mirror Mount

    ® Aligna 4D User Manual Angular beam displacement: X-direction: 4.8 mrad (>4.8 mm at a dist. of 1 m) Y-direction: 4.8 mrad (>4.8 mm at a dist. of 1 m) 1 inch diameter (24.0 … 25.8 mm) Mirror size: thickness: 2 … 10 mm other mirrors: on demand Free aperture (max beam diameter):...

  • Page 79: Used Mirrors

    ® Aligna 4D User Manual 13.8 Used Mirrors The user may use any own mirrors. For standard applications we rec- ommend (and deliver) mirrors with QI/LINOS dielectric super broad band coating DLB 350-950 350 … 950 nm > 99% Wavelength range: at 45°...

  • Page 80: Connectors And Cables

    ® Aligna 4D User Manual 14 Connectors and Cables 14.1.1 Mains power cable Use the included power supply cable that provides proper grounding contact. (The system may be delivered with country-specific mains power cables.) 14.1.2 Connection of the Detectors and Actuators Notice! Only use the cable delivered with your system.
  • Page 81 ® Aligna 4D User Manual Cable requirements: >= 0.09 mm², >= 20 V 14.1.2.16 Piezo Actuator Connectors ("A1", "A2", "A3", "A4"): Piezo X Piezo Y (Piezo Z, 3D actuator) (Piezo X2, 4D actua- tor) (Piezo Y2, 4D actua- tor) Piezo GND Cable requirements: >= 0.09 mm², >= 150 V 14.1.2.17 Piezo Driver 81 / 84...
  • Page 82 (They are NOT connected 1:1, the shielding is different, and at least 3, mostly 4 shield pins are shortened, which may destroy components in the power supply. At least it will cause malfunc- tion of the TEM device because of missing signals.) We offer HD15 1:1 extension cables male/female in many variants, all compatible against each other.
  • Page 83 ® Aligna 4D User Manual 14.1.3 Fixing the cable handles It is important to connect the cable handles properly to avoid loosening due to vibrations or unwanted pulling the cables. With the cables, you get delivered fitting UNC 4-40 hex-bolts (which are usual with computer cables), and acrylic spacers.

  • Page 84: Customer Service

    ® In case of service needs, general questions related to the Aligna system, need of repair, or warranty claims you will get quick and effective support at: TEM Messtechnik GmbH Grosser Hillen 38 D-30559 Hannover Germany Phone: +49 (0)511 51 08 96 -30...

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