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Gentec-E MACH 5 User Manual

130 khz energy meter and probes
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Mach 5 User's Manual
Revision 2.2
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Summary of Contents for Gentec-E MACH 5

  • Page 1 Mach 5 User’s Manual Revision 2.2...
  • Page 2 The warranty does not cover damages related to battery leakage or misuse. Gentec-EO Inc. will repair or replace, at Gentec-EO Inc.’s option, any MACH 5 that proves to be defective during the warranty period, except in the case of product misuse.
  • Page 3 Revision 2.2 SAFETY INFORMATION Do not use the MACH 5 if the device or the detector looks damaged, or if you suspect that the MACH 5 is not operating properly. Appropriate installation must be done for water-cooled and fan-cooled detectors. Refer to the specific instructions for more information.

  • Page 4: Table Of Contents

    The Statistics Display ...................... 29 The FFT Display ......................32 The Probe Data Display....................33 Operating Mach 5 with the Applications Software ............. 37 Getting Ready to Measure Data ..................38 Range Setting ........................38 Trigger Level Setting ...................... 38 Trigger Source Setting ....................

  • Page 5: Introduction

    Revision 2.2 Introduction The Mach 5 is an advanced high speed energy meter capable of measuring up to 100,000 pulses per second. It is used with the Mach 5 Applications Software, which creates a full featured data acquisition system for measuring and displaying laser energy.

  • Page 6: Installing The Software

    1. Insert the installation CD. The installation will start automatically. If it does not, browse to the setup.exe file on the CD and run it. 2. The Welcome to the GENTEC-EO Mach 5 Installation Wizard will open. Select Next. 3. The Select Destination Folder dialog box will open. It is recommended that you leave the destination folder at the default setting.
  • Page 7 Mach 5 User’s Manual Revision 2.2 3. The Found New Hardware Wizard will run. If the Windows Update prompt appears, select No, not this time and press Next. 4. When the Install from CD appears, select Install Software Automatically and press Next.

  • Page 8: Power Source

    Plug the supply into the DC power jack located on the front panel. Probe Connection The Mach 5 probes use a 7 pin locking connector. See figure 2. Plug in the probe by lining up the red reference dots and pushing the connector until it latches into its locked position.

  • Page 9: Usb

    Turning the Unit On Before turning the Mach 5 on, be sure that the probe in use is plugged in. When the Mach 5 powers up, it reads the probe memory to obtain required information for correct operation.

  • Page 10: The Applications Software

    Range LED. Should either of these conditions occur, contact GENTEC-EO for service of the unit. The Applications Software The Mach 5 Application Software consists of controls and indicators on 6 display tabs: 1. The Instrument Controls Display. 2. The Strip Chart Display.
  • Page 11 Mach 5 User’s Manual Revision 2.2 Figure 3, Instrument Controls Display The main controls for the instrument are below the display tabs. They are: Range Sets the instrument to the desired range. Note that the available ranges are dependant on the sensor responsivity.
  • Page 12 Mach 5 User’s Manual Revision 2.2 Trigger Polarity Sets the trigger edge polarity for the external trigger pulse. Positive triggers on the rising edge of the trigger pulse, negative triggers on the falling edge of the trigger pulse. Trigger Delay This is the delay of the trigger pulse.
  • Page 13 Mach 5 User’s Manual Revision 2.2 Read 2, pulse offset = 500,001, number of pulses to retrieve = 500,000 Read 3, pulse offset = 1,000,001, number of pulses to retrieve = 500,000 Read 4, pulse offset = 1,500,001, number of pulses to retrieve = 500,000 The response of the application to large pulse batches will depend on the host PC.
  • Page 14 Mach 5 User’s Manual Revision 2.2 With internal triggering, if the pulse is below the trigger level, no trigger will occur, but the period timer will still be running. This means that the period will be longer between the pulses adjacent to the missing pulses. The applications software examines the pulse data for this condition and records the time stamps where the period is discontinuous.

  • Page 15: The Instrument Control Display

    Mach 5 User’s Manual Revision 2.2 1s 68.27% 2s 95.450% 3s 99.7300% 4s 99.993666% 5s 99.99994267% 6s 99.9999998027% Move to Next Display Moves the Tab Control to the next Display Tab. There are four LED indicators for the instrument above the display tabs. They are: The Over temp LED illuminates when the measure probe temperature exceeds 65°C.
  • Page 16 Turns Trigger Level Tracking On. This applies to Internal Trigger Mode only. Since the Mach 5 uses a hardware trigger, and the pulse that creates the trigger exhibits a DC drift proportional to average power, the trigger level will appear to shift in relation to the pulse as the.

  • Page 17: The Live Mode Display

    Mach 5 User’s Manual Revision 2.2 select or create a file. Data is stored in the following format: Pulse Energy (in Joules), Time Stamp (in Seconds), Probe Temperature (in degrees Celsius), and Error Flag The Error flag is decoded as follows: 0 = no errors in batch.
  • Page 18 Mach 5 User’s Manual Revision 2.2 Calls a display of measured data sampled at a 10Hz rate. Calling the display side affects: Range, Trigger Level, Trigger Source, Trigger Polarity, and Trigger Delay as these parameters are controllable from the Live Mode Display VI. The data may be logged to a file for later analysis.

  • Page 19: The Life Test Display

    Mach 5 User’s Manual Revision 2.2 The Life Test Display Run Life Test The Life Tests Vi will start a test at a desired time; measure the desired number of pulses at a desired interval, until the desired stop time is reached. Each test in the sequence is stored in an auto incrementing file.
  • Page 20 Mach 5 User’s Manual Revision 2.2 The Controls are: Start Test Starts the test with the selected parameters for Start Time, Stop Time, and Test Interval. Start Using Current Time Starts the test immediately and calculates the Stop Time from the Current Time, Number of Tests, and Test Interval.
  • Page 21 Note that the first pulse in the batch after an arm is always discarded by the Mach 5. (See the Measuring Data Section) If the laser is free running, this will not be an issue. If the laser is in burst mode, then be sure to set the batch size to 1 less than the burst size.
  • Page 22 Additional file information will be placed at the end of the complete file. Addition File Information Every data file will also contain the date, time, Additional File Information, and the state of the Mach 5 when the data was taken. The Indicators are: Test Number The currently running test or the last ran test.
  • Page 23 Mach 5 User’s Manual Revision 2.2 The current status of the running test sequence. Data File The last data file that was written to. Statistics Strip Chart A running display of the data sets statistics, as well as any error conditions in the current data set.
  • Page 24 Illuminates whenever the application detects a Mach 5 instrument has been plugged into the USB. Mach 5 Found Whenever the application detects a Mach 5 instrument has been plugged into the USB, it queries it for its identification. If the response is correct, this LED illuminates. Initialization Complete...

  • Page 25: The Applications Software Menu

    Mach 5 User’s Manual Revision 2.2 initializes the GUI and the instrument based on the instrument setup and the probe in use. When the initialization is complete, this LED illuminates. The Applications Software Menu Menu Items There are 2 menus on the applications software, File, and Help.
  • Page 26 Mach 5 User’s Manual Revision 2.2 Figure 4, Strip Chart Display The functions of the controls or indicators are: Energy Plot A strip chart of the retrieved data set, if the target has been set to display, or if a data file has been copied into the displays.
  • Page 27 Mach 5 User’s Manual Revision 2.2 Place Cursor on Min Places a cursor on the minimum value and its time stamp on the strip chart. Place Cursor on Max Places a cursor on the maximum value and its time stamp on the strip chart.

  • Page 28: The Histogram Display

    Mach 5 User’s Manual Revision 2.2 From the continuous period data, the true period can be found and used to count how many pulses were missing in the discontinuities. The minimum pulse energy in the data set. The maximum pulse energy in the data set.

  • Page 29: The Statistics Display

    Mach 5 User’s Manual Revision 2.2 Figure 5, Histogram Display The functions of the controls or indicators are: Number of Bins Number of bins to be used to calculate the histogram. Histogram Plot Histogram of the measured pulse energies in the sample buffer. The Gaussian fit to the data is plotted as well.
  • Page 30 Mach 5 User’s Manual Revision 2.2 Figure 6, Statistics Display The functions of the controls or indicators are: Display STDEV Divided by Mean Displays the standard deviation as: Standard Deviation / Mean Display Fluence Displays the statistics as Fluence, J/cm^2.
  • Page 31 Mach 5 User’s Manual Revision 2.2 The maximum pulse energy in the data set. Mean The mean pulse energy in the data set. Spread Spread is defined as: (max - min) / (max + min) Median Finds the median value of the pulse energy data by sorting the values of pulse energy and selecting the middle element(s) of the sorted array.

  • Page 32: The Fft Display

    Mach 5 User’s Manual Revision 2.2 the mode of X is 4 because that is the value that most often occurs in X. Pulses Below Threshold When the Search Data for Missing Pulses button is pressed, the current data set is examined.

  • Page 33: The Probe Data Display

    Mach 5 User’s Manual Revision 2.2 Figure 7, FFT Display The function of the controls and indicators are: Remove DC Component Removes the DC component from the FFT. This control must be set before reading the data from the instrument or a saved data file.
  • Page 34 Mach 5 User’s Manual Revision 2.2 Figure 8, Probe Data Display The functions of the controls or indicators are: Wavelength Correction Factor The responsivity correction factor that corresponds to the wavelength response of the sensor. Note that this is only active when wavelength is on and the set wavelength is different than the calibration wavelength.
  • Page 35 Mach 5 User’s Manual Revision 2.2 The responsivity of the sensor at the calibration wavelength and temperature. Log Wavelength Scale Toggles the wavelength axis of the absorption plot between log and linear scale. % Absorption Plot The absorption curve of the sensor versus wavelength. This data is used along with the calibration wavelength and the user's laser wavelength to calculate the wavelength correction factor.
  • Page 36 Reads the current probe wavelength response curve, calculates the new response point from the data, then writes the new calculated Probe Response to the Probe memory. After the probe EPROM is written, Mach 5 will be reset to ensure the new data is correctly read from the probe.

  • Page 37: Operating Mach 5 With The Applications Software

    Mach 5 User’s Manual Revision 2.2 After the probe EPROM is written, Mach 5 will be reset to ensure the new data is correctly read from the probe. Exit Exits the VI and returns to the main display. The new probe response table will be stored and used until a new one is written by the user.

  • Page 38: Getting Ready To Measure Data

    Trigger Delay Setting The Mach 5 instrument samples the pulse being measured to determine the pulse energy. In order to accurately measure the energy, the trigger event must be temporally aligned with the pulse. This alignment is accomplished by setting the trigger delay. For internal triggering, the delay is set to the default value of 0ns and the user need not do anything.
  • Page 39 -932ns to 2863ns. The figure below shows an external trigger pulse and the analog out from the Mach 5 measured on an oscilloscope. If the trigger is set to external, with a rising edge polarity, then the temporal relationship between the rising edge of the trigger trace and the rising edge of the pulse trace must be known.

  • Page 40: Trigger Level Tracking Setting

    Trigger Tracking monitors the DC level of the pulse and modifies the trigger level so it remains at the set level in relation to the pulse. When triggering stops or Mach 5 is disarmed, or trigger tracking is turned off, the trigger level returns to its unmodified state.

  • Page 41: Zero Baseline

    Now suppose in the previous example trigger tracking had been on. The trigger level would have followed the pulse down as it drifted 12%. If the Mach 5 is then disarmed, but the laser is left running at the same repletion rate, the pulse will stay at the same level, but the trigger will return to its non corrected state.

  • Page 42: Retrieving Data

    In most cases this is not an issue, but if a set number of pulses are being sent by the laser, as in a burst mode, then Mach 5 must be set to a batch size of one less pulse.

  • Page 43: Missing Pulses

    Revision 2.2 Missing Pulses The Mach 5 Applications software is capable of detecting missing pulses in two ways. Missing pulses below a user set threshold. When the Search Data for Missing Pulses button is pressed, the current data set is examined.

  • Page 44: Temperature Correction

    Mach 5 User’s Manual Revision 2.2 The response of the probe is stored in the probe memory and is read when the Mach 5 is powered on. It is plotted on the Probe Data display Temperature Correction Temperature correction is done in the Mach 5 Application Software. When a temperature...
  • Page 45 Mach 5 User’s Manual Revision 2.2 Instrument Specifications Power Supply 9V-15V at 1A Dimensions (inches) 6.56 x 6.67 x 2.19 Indicators Power, Trigger, Buffer Full, Over Temp, Armed, Out of Range External Trigger Optically Coupled TTL External Trigger Slope Selectable, positive or negative...

  • Page 46: Recycling And Separation Procedure

    Mach 5 User’s Manual Revision 2.2 Wavelength Compensation Range Probe Dependant, User can disable Recycling and separation procedure. This section is used by the recycling center when the monitor is at the end of its life. Breaking the calibration seal or opening the monitor will void the Monitor warranty.
  • Page 47 Mach 5 User’s Manual Revision 2.2 DECLARATION OF CONFORMITY Application of Council Directive(s): 2004/108/EC EMC Directive Manufacturer’s Name: Gentec Electro Optics, Inc. Manufacturer’s Address: 445 St-Jean Baptiste, suite 160 (Québec), Canada G2E 5N7 European Representative’s Name: Laser Components S.A.S. Representative’s Address:...
  • Page 48 Mach 5 User’s Manual Revision 2.2...

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