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Newport OPHIR Photonics Spiricon Pyrocam IV User Manual

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™
Pyrocam
IV
User Guide
For Sales, Service or Technical Support
Phone: (435) 753-3729
Fax: (435) 753-5231
Service Email
service@us.ophiropt.com
Sales Email
sales@us.ophiropt.com
Ophir-Spiricon, LLC
3050 N 300 W
N. Logan, Utah 84341
©2017 Ophir-Spiricon, LLC
Pyrocam IV Operator's Manual
Document No. 50337-001
Rev F
2/21/2017
Page 1

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  • Page 1 ™ Pyrocam User Guide For Sales, Service or Technical Support Phone: (435) 753-3729 Fax: (435) 753-5231 Service Email service@us.ophiropt.com Sales Email sales@us.ophiropt.com Ophir-Spiricon, LLC 3050 N 300 W N. Logan, Utah 84341 ©2017 Ophir-Spiricon, LLC Pyrocam IV Operator’s Manual Document No. 50337-001 Rev F 2/21/2017 Page 1...
  • Page 2 Notice ® BeamGage is a registered trademark of Ophir-Spiricon, LLC Ultracal™ is a trademark of Ophir-Spiricon, LLC Ultracal processing feature protected under United States Patent Nos. 5,418,562 and 5,440,338. ® GigE Vision is a registered trademark of Automated Imaging Association ®...

  • Page 3: Table Of Contents

    Table of Contents Table of Contents ....................... 3 CHAPTER 1 – GENERAL INFORMATION ..............5 Introduction ....................5 Models ......................5 Included Items ....................5 Accessories ....................6 How To Use This Manual ................6 Safety ......................6 1.6.1 Optical Radiation Hazards ................ 6 1.6.2 Electrical Hazards ..................
  • Page 4 Calibrate and Ultracal Cycles ................. 22 3.5.1 Calibrate Cycle ..................23 3.5.2 Ultracal Cycle ..................23 3.5.3 Performing an Ultracal ................23 3.5.4 Ultracal Status Indicator ................. 24 CHAPTER 4 – GenICam COMPATIBILITY ..............25 Features ...................... 25 National Instruments Vision Acquisition Software ..........25 APPENDIX A –...

  • Page 5: Chapter 1 - General Information

    CHAPTER 1 – GENERAL INFORMATION 1.1 Introduction The Pyrocam IV is a high performance, solid-state, pyroelectric camera that features a large 25mm imager (320 x 320 pixels) and 16-bit A/D converter. This enables reliable measurement and analysis of both large signals and low-level signals in the wings of the laser beam.

  • Page 6: Accessories

     Getting Started with GigE User Guide  This User Guide 1.4 Accessories Spiricon offers a complete line of accessory equipment to support the Pyrocam in your application. These range from Ge lenses to beam attenuation optics and beam expanders/reducers. Spiricon provides custom accessories to match your specifications. Consult Spiricon or your local Spiricon representative for current accessory availability and pricing.

  • Page 7: Electrical Hazards

    radiation from the input laser beam. Take this reflection into consideration when directing a laser into the camera. Usage of this instrument may require the operator to work in the optical path of high power lasers. Exposure to the radiation from these lasers may be sufficient to warrant the use of protective equipment.

  • Page 8: Chapter 2 - Connections, Controls And Displays

    CHAPTER 2 – CONNECTIONS, CONTROLS AND DISPLAYS 2.1 System Installation A Pyrocam system consists of the following:  Pyrocam camera with power supply  Gigabit Ethernet to USB 3.0 adaptor  PC computer running Windows 7 or Windows 10 (32 or 64 bit) and BeamGage ...

  • Page 9: Driver Installation

    2.1.2.2 Power The Pyrocam is provided with a 12Vdc/24W AC to DC universal power supply. The power connection is made by plugging the output power cable into the camera and connecting the power supply to a proper AC source. 2.1.2.3 Trigger For pulsed operations, connect the trigger source to this SMA connector.

  • Page 10: Setup And Operation

    CHAPTER 3 SETUP AND OPERATION – 3.1 Introduction The Pyrocam can analyze both CW and Pulsed style lasers. Fitted with an appropriate lens, the Pyrocam can continuously image high temperature thermal objects, or can capture short-pulsed thermal events. The Pyrocam requires different setups depending upon the specific application.
  • Page 11 Hint: Always remember to re-Ultracal after changing the Trigger Mode or the Exposure setting. Gain Control The Pyrocam has a video gain control to help with viewing lower intensity lasers. The number in the slide control does not correspond to the actual gain in V/V. The corresponding gain for each setting is shown in Table 1.
  • Page 12 List  Add (mark) a column of BP’s to the BP List  Remove (unmark) a column of BP’s from the BP List  Clear a BP List  Save a BP into a BP text file List  Load a BP from a BP text file List ...
  • Page 13 Read Pixel List List Click to read the current pixel from the camera. Clear Pixel List List. Clears all marked pixels from the correction Software Bad Pixel Correction Enable/Disable the bad pixel correction simulation built into the BeamGage software. This List allows the operator to preview the effect of the current BP before writing it into the...
  • Page 14 Click on the expansion button to enter the Gain Correction Dialog. In order to use the automatic GC creation method, a uniform collimated illumination must be applied over the entire imager. Clicking on the Create Gain Table button will then compute a normalization factor for each pixel.

  • Page 15: Pulsed Operation

    Set Gain Frame to Default Click to set the gain frame to the default value of 1.0 for each pixel. Pixel Gain Value This is a dual operation control. It will display the current GC factor at the cursor selected location, and can be used to enter a new value by editing its content and then clicking on the adjacent button.

  • Page 16: Pulse Mode Setup Procedure

    problems. There is some built-in hysteresis between the trigger mode thresholds, so approach the boundary points from the side most desirable. NOTE: An Ultracal MUST be performed for all pulsed trigger modes. NOTE: Unstable periodic trigger pulses will result in timing jitter from one pulse to the next.

  • Page 17: Mode 1, Single-Shot Operation

    ∆�� = ���������� ���������� ������������ �� = ���������������� ���������� �� (All times are in µsec unless noted otherwise) 3.3.3 Mode 1, Single-Shot Operation Mode 1 describes operation when the laser fires at a trigger rate of <3Hz, including non- repetitive or Single-Shot triggers. Figure 3.1 diagrams the trigger timing requirements for this mode of operation.

  • Page 18: Mode 2, Periodic-Burst Operation

    In mode 2 and 3 the Pyrocam firmware measures the trigger pulse period and predicts when the next pulse will occur. Based on the predicted trigger time, the exposure start time can be advanced (made early). When a negative Delay is entered, the exposure time will start early based on the negative Delay value.

  • Page 19: Mode 3, High-Speed Operation

    slightly longer than the pulse width. Observe that the Trigger pulse must only occur once per burst. Figure 3.3 : Mode 2, Periodic–Burst, ������ < �� , ������ < �� < �� < ������������ �������� ������ �������� ������ �� −1 8.705����...

  • Page 20: Chopped (Cw) Operation

    In pulse mode 3, the Pyrocam is receiving trigger pulses at a rate faster than the pyroelectric detector can read out. See Figure 3.4. Thus, trigger inputs are automatically divided down to a range that the Pyrocam can keep up with. The dividing factor will be the least integer value that will reduce the effective rate to a value that falls just within a rate supported in pulse mode 2.

  • Page 21: Chopped (Cw) Setup Procedure

    WARNING: Before exposing the Pyrocam detector to a CW Laser, be sure that you will not exceed the safe operating levels of the array. Refer to APPENDIX A for damage threshold limits. Permanent damage to the array may result if these limits are exceeded.

  • Page 22: Calibrate And Ultracal Cycles

    3.4.1.1 Internal Chopper The internal chopper in the Pyrocam utilizes a closed-loop PID control system to keep it running at a constant speed. When in Pulsed mode, the controller is still active, maintaining the position of the chopper blade so that it doesn’t cover the detector. Occasionally, the blade will jitter or make a little noise as the control loop makes slight periodic adjustments to the chopper’s position.

  • Page 23: Calibrate Cycle

    3.5.1 Calibrate Cycle The Calibrate operation is performed in the Pyrocam when a Calibrate command (see APPENDIX F) is sent to the Pyrocam firmware. This process establishes a zero set-point within the Pyrocam that corrects for circuit and ADC offset errors. It also sign adjusts for the pyro-electric crystal’s polarity and dynamic range.

  • Page 24: Ultracal Status Indicator

    STEP 3. Click on the Ultracal button on the Source tab or Quick Access Toolbar to initiate the Ultracal cycle. STEP 4. Upon completion, the Ultracal checkbox will turn ON, a measured signal to noise ratio of the camera in RMS dB will be computed and displayed and a Green will illuminate in the status bar.

  • Page 25: Chapter 4 - Genicam Compatibility

    CHAPTER 4 – GenICam COMPATIBILITY The Pyrocam is compliant with GenICam v2.0. The Pyrocam should work with any GenICam client. 4.1 Features The Pyrocam contains hundreds of settings which are called Features in the GenICam standard. All of the features, except for those identified as read-only, can be changed by any program that communicates with a GenICam compliant camera.
  • Page 26 The Pyrocam has been tested with the following examples:  Grab and Attributes Setup.vi  Grab and Basic Attributes.vi  Grab and Detect Skipped Buffers.vi  Grab and Reconfigure.vi  Grab and Select Interface.vi  Grab.vi  Sequence.vi  Snap.vi ...

  • Page 27: Appendix A - Specifications

    APPENDIX A – SPECIFICATIONS Pyrocam IV Specifications ENVIRONMENTAL Operating Temperature +5°C to +50°C Storage Temperature -30°C to +85°C Humidity 95% max non-condensing POWER REQUIREMENTS Line Voltage 100-240 Vac Line Frequency 47-63Hz Power Consumption WEIGHT Pyrocam 1.20kg (2.65 lb.) Power Supply 0.15kg (0.33 lb.) Shipping 3.73kg (8.0 lb.)
  • Page 28 Mounting 2 ¼”-20 threaded inserts Firmware Field upgradeable via Ethernet port Software BeamGage™ GenICam controls provided for 3rd party interfacing Internal chopper on some models CHOPPED / CW OPERATION Chopping Frequencies 25Hz, 50Hz Sensitivity (RMS noise limit) 64 nW/pixel (25Hz) 96 nW/pixel (50Hz) 1.0 mW/cm (25Hz)

  • Page 29: Pyrocam Dimensions

    Pyrocam Dimensions (w/o lens assembly, external chopper, or cables) Pyrocam IV Operator’s Manual Document No. 50337-001 Rev F 2/21/2017 Page 29...
  • Page 30 Figure A.1 Trigger Input Circuit Pyrocam IV Operator’s Manual Document No. 50337-001 Rev F 2/21/2017 Page 30...

  • Page 31: Appendix B - Protective Bezel Removal And Window Installation

    APPENDIX B – PROTECTIVE BEZEL REMOVAL AND WINDOW INSTALLATION The windowless protective bezel on the pyroelectric detector allows the Pyrocam to be operated at various wavelengths of light and provides some degree of protection to the detector. Optional A/R coated windows can be installed which provide added protection. These windows limit the pyroelectric detector response to a specific wavelength light range.
  • Page 32 STEP 2. Remove the front cover by removing the four (4) screws as shown in Figure B.2. Be careful not to damage the chopper when removing the front cover. Pull the front cover straight back from the case to avoid damage to the connector pins that couple the chopper assembly to the main board electronics.
  • Page 33 STEP 3. Remove the two screws securing the bezel to the pyroelectric detector as shown in Figure B.3. Caution: Use great care to ensure that the bezel does not slip or detach prematurely. If it contacts the detector, damage is very likely to occur.

  • Page 34: Appendix C - Bad Pixel Correction

    APPENDIX C – BAD PIXEL CORRECTION Bad Pixel Correction Overview This procedure will assume that the user is familiar with the operation of the Pyrocam. This procedure will outline how to go about locating a bad pixel, marking a pixel for correction, and downloading an updated bad pixel map to the Pyrocam.

  • Page 35: Bad Pixel Correction Procedure

    Bad Pixel Correction Procedure Before beginning a bad pixel correction process, setup the Pyrocam to operate and provide a reasonably bright source of illumination. Laser beams of the correct wavelength make good illuminators. It is also necessary to be able to translate the illuminated spot around the detector array in search of the defective pixels.
  • Page 36 Figure C.1: A Bad Pixel Centered in the Cursors STEP 4. Click Add Pixel to List to mark the newly identified bad pixel. Observe that the pixel turns YELLOW, the “Available Pixels” counter decreases by one, and the “Marked Pixels” counter will have increased by one. NOTE: If you accidentally mark the wrong pixel, select the unwanted pixel from the Pixel List and click Remove Pixel from List.
  • Page 37 Turn it On In general, you will always operate the Pyrocam with bad pixel correction turned ON. The default setting of the bad pixel correction control is ON, and will remain so unless you override it in a saved setup. Pyrocam IV Operator’s Manual Document No.

  • Page 38: Appendix D - Gain Correction

    APPENDIX D – GAIN CORRECTION Gain Correction Overview This procedure will assume that the user is familiar with the operation of the Pyrocam. This procedure will outline how to go about creating a gain correction table for downloading to the Pyrocam. This table will be permanently stored in your Pyrocam’s flash memory.

  • Page 39: Gain Correction Procedure

    Spiricon will also provide you with a pair of files that contain these tables upon request. These files form a backup source in case you accidentally load a bad gain correction table into your Pyrocam. They can be a source of the original valid table to restore to the Flash memory.
  • Page 40 STEP 3. Check the effect of the gain correction operation by enabling Software Gain Correction. The displayed image should appear very uniformly illuminated, except for any bad pixels that may be present. Do not worry about these pixels, as the bad pixel correction map will deal with them. NOTE: If you want to make sure that all the bad pixels you see are marked for repair, follow the directions in APPENDIX C.

  • Page 41: Appendix E - Pyrocam Model Numbers And Accessories

    APPENDIX E – Pyrocam MODEL NUMBERS and ACCESSORIES Pyrocam IV Models Model Description SP90404 PY-IV-C-A Pro Pyrocam IV pulsed/chopped SP90414 PY-IV-C-A-MIR Pro Pyrocam IV pulsed/chopped, MIR Enhanced Pyrocam IV Windows Model Description SP90355 PY-IV-W-UVFS-193-248 Pyrocam IV window assembly, UVFS, A/R coated for 193 to 248 nm SP90301 PY-IV-W-BK7-1.064 Pyrocam IV window assembly, BK7,...

  • Page 42: Appendix F - Table Of Features

    APPENDIX F – TABLE OF FEATURES The Pyrocam contains hundreds of features. All of the features, except for those identified as read-only, can be changed by any program that communicates with a GenICam compliant camera. However, only a very small subset of Pyrocam features should be changed by the normal user.
  • Page 43 AnalogControl Gain Controls the selected gain as float 1.0 - 8.0 an absolute physical value. GainRaw Controls the selected gain as uint 0 = 1.00 a raw integer value 1 = 1.14 2 = 1.33 3 = 1.60 4 = 2.00 5 = 2.67 6 = 4.00 7 = 8.00...
  • Page 44 GainCorrection Enables and disables Gain bool False Correction inside the camera. TriggerPeriod Number of microseconds uint between triggers. SkippedTriggers Number of triggers skipped uint between frame capture. FirmwareVersion Firmware version encoded as uint 0x01000001 hex number 0xMMmmbbrr where: MM = major version mm = minor version bb = build number rr = revision...

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