OPHIR StarBright User manual

StarBright
StarBright
StarBright
Laser Power / Energy Meter User Manual

この度はオフィール社のStarBrightディスプレイをご購入頂き誠にありがとうございます。
スターブライト本体のヘルプ機能が充実しており、マニュアルなしでも操作が簡単に行える
ようになっていますが、操作などご不明点ございましたら、お手数ですが下記までお問い
合わせお願いいたします。
Youtubeでも簡単な機能説明についてご覧いtだけます。

StarBright User Manual 1
Table of Contents
1Introduction................................................................................................................... 5
1.1 This Document............................................................................................................... 5
1.2 Related Documentation ................................................................................................ 5
1.3 Support .......................................................................................................................... 5
2Quick Reference............................................................................................................. 6
2.1 Getting Started .............................................................................................................. 6
2.2 Thermopile Sensors....................................................................................................... 7
2.2.1 Using StarBright with Thermopile Type Sensors ...............................................7
2.2.2 Using StarBright to Measure Laser Power.........................................................7
2.2.3 Using StarBright to Measure Single Shot Energy...............................................7
2.3 Photodiode Sensors....................................................................................................... 8
2.3.1 Using StarBright with Photodiode Type Sensors ...............................................8
2.3.2 Setting the Measurement Parameters ..............................................................8
2.4 Pyroelectric or Photodiode Energy Sensors .................................................................. 8
2.4.1 Using StarBright with Energy Sensors................................................................8
2.4.2 Zeroing Instrument against Sensor....................................................................9
2.4.3 Setting the Measurement Parameters ..............................................................9
2.4.4 Energy, Average Power, or Exposure Measurement.......................................10
2.5 Graphical Displays ....................................................................................................... 10
2.6 Math Functions............................................................................................................ 12
2.7 Logging Data to a File for Upload to PC....................................................................... 12
3Using the StarBright Display Unit .................................................................................. 13
3.1 General Description..................................................................................................... 13
3.2 StarBright Display Unit Components........................................................................... 14
3.3 StarBright Hardware Components/Interfaces............................................................. 15
3.3.1 Sensor Input.....................................................................................................15
3.3.2 LCD Display and Backlight................................................................................16
3.3.3 Soft Keys ..........................................................................................................16
3.3.4 Navigation Keys ...............................................................................................16
3.3.5 On-Off Switch/Backlight Control .....................................................................17
3.3.6 Charger Input...................................................................................................18
3.3.7 Analog Output .................................................................................................18
3.3.8 RS232 and USB Outputs...................................................................................19
3.4 StarBright Functions –Independent of Sensor Type................................................... 19
3.4.1 Instrument Settings .........................................................................................20
3.4.2 Field Upgrade –Updating the StarBright Firmware ........................................22
3.4.3 Clock Settings...................................................................................................22
3.4.4 Zero Adjustments ............................................................................................23
3.4.5 Line Frequency.................................................................................................24
3.4.6 Language..........................................................................................................24
3.4.7 Measurement Screens (Graph Types) .............................................................25
3.4.8 Color Scheme...................................................................................................27
3.5 StarBright Screen Layout ............................................................................................. 29

StarBright User Manual 2
4Points to Consider ........................................................................................................ 30
5Thermopile Sensors...................................................................................................... 31
5.1 Operation of StarBright with Thermopile Absorber Sensors ...................................... 32
5.2 Measuring Laser Power with Thermopile Sensors ...................................................... 32
5.3 Measuring Laser Energy with Thermopile Sensors ..................................................... 33
5.3.1 Measuring Pulses of Very Low Energy.............................................................35
5.3.2 Measuring Energy of Rapidly Repeating Pulses...............................................35
6BeamTrack Sensors ...................................................................................................... 36
6.1 Setting Measurement Parameters .............................................................................. 37
6.2 Tracking Laser Beam Position and Size........................................................................ 38
6.3 Tracking Stability - Laser Beam Position Over Time .................................................... 38
7Photodiode Sensors...................................................................................................... 39
7.1 Operation of StarBright with Photodiode Sensors...................................................... 41
7.2 Measuring Laser Power with Photodiode Sensors...................................................... 41
7.3 Averaging and Measuring Very Low Power Measurements ....................................... 43
8Pyroelectric and Photodiode Energy Sensors................................................................. 44
8.1 Pyroelectric Sensors –Method of Operation.............................................................. 44
8.2 Photodiode Energy Sensors –Method of Operation .................................................. 44
8.3 Measuring Pulses of High Energy Density ................................................................... 45
8.4 Operation of StarBright with Pyroelectric and Photodiode Energy Sensors............... 45
8.4.1 Zeroing the Energy Sensor Against the StarBright Meter ...............................46
8.4.2 Setting Measurement Parameters When Using Energy Sensors ....................46
8.4.3 Energy, Average Power, or Exposure Measurement.......................................48
8.4.4 Measuring Laser Energy...................................................................................48
8.4.5 Measuring Average Power...............................................................................49
8.4.6 Measuring Total Energy Exposure ...................................................................50
9Graphical Displays ........................................................................................................ 51
9.1 Display Settings............................................................................................................ 52
9.2 Bargraph ...................................................................................................................... 53
9.2.1 Measuring Modes............................................................................................53
9.2.2 Zoom................................................................................................................54
9.2.3 Offset ...............................................................................................................54
9.2.4 Measuring Loss Using the dB Offset Function.................................................55
9.2.5 Bargraph Style..................................................................................................56
9.3 Analog Needle ............................................................................................................. 58
9.3.1 Measuring Modes............................................................................................59
9.3.2 Persist ..............................................................................................................59
9.4 Line Graph ................................................................................................................... 60
9.4.1 Measuring Modes............................................................................................60
9.4.2 Percentage Range (Y-Axis Scale)......................................................................61
9.4.3 Horizontal Sweep Time (X-Axis Scale) .............................................................61
9.4.4 Reset ................................................................................................................62
9.5 Statistics....................................................................................................................... 62
9.5.1 Measuring Modes............................................................................................63

StarBright User Manual 3
9.6 Pass/Fail....................................................................................................................... 63
9.6.1 Measuring Modes............................................................................................64
9.6.2 Upper/Lower Limits .........................................................................................64
9.7 Exposure (for Pyroelectric Sensors)............................................................................. 65
9.7.1 Measuring Modes............................................................................................66
9.7.2 Manual/Timeout/Pulses ..................................................................................66
9.8 Position (for BeamTrack Sensors)................................................................................ 67
9.8.1 Measuring Modes............................................................................................68
9.9 Stability (for BeamTrack Sensors)................................................................................ 68
9.9.1 Measuring Modes............................................................................................69
9.10 Other Display Settings ................................................................................................. 69
9.10.1 Show/Hide Settings .........................................................................................70
9.10.2 Color Scheme...................................................................................................70
10 Math Functions ............................................................................................................ 73
10.1 Display on Main Measurement Screen ....................................................................... 73
10.2 Functions Screen ......................................................................................................... 74
10.3 Average........................................................................................................................ 75
10.4 Fixed Offset.................................................................................................................. 75
10.5 Scale Factor.................................................................................................................. 76
10.6 Normalize .................................................................................................................... 77
10.7 Density......................................................................................................................... 78
10.8 Function Limitations.................................................................................................... 79
11 Logging Data to a File for Upload to PC ......................................................................... 80
11.1 Launching the Log Setup ............................................................................................. 80
11.2 Setting Logging Parameters for the Various Stop Modes ........................................... 81
11.2.1 Manual Mode ..................................................................................................82
11.2.2 After Timeout ..................................................................................................83
11.2.3 After Measurements........................................................................................85
11.3 Start Logging................................................................................................................ 86
11.4 Displaying Logged Data ............................................................................................... 87
11.5 Viewing the Log File on Your Computer...................................................................... 90
12 Special Sensors............................................................................................................. 91
12.1 BC20............................................................................................................................. 91
12.2 PD300-CIE .................................................................................................................... 92
12.3 PD300-BB..................................................................................................................... 92
12.4 PD300RM..................................................................................................................... 92
12.4.1 Irradiance Measurement.................................................................................93
12.4.2 Dosage Measurement .....................................................................................94
12.4.3 Offset ...............................................................................................................94
12.4.4 Function Limitations ........................................................................................94
13 Circuit Description........................................................................................................ 95
13.1 Analog Module ............................................................................................................ 95
13.1.1 Analog Circuit...................................................................................................95

StarBright User Manual 4
13.1.2 Fast Analog Input.............................................................................................95
13.1.3 Analog Output .................................................................................................95
13.2 Processor Board........................................................................................................... 95
13.2.1 Power Supply ...................................................................................................95
13.2.2 EMI Protection.................................................................................................96
14 Calibration, Maintenance, and Troubleshooting............................................................ 97
14.1 Updating Sensor Calibration Factors........................................................................... 97
14.2 Calibration of Thermopile Sensors .............................................................................. 98
14.2.1 Absorber Types and Method of Calibration of Ophir Power Meters ..............98
14.2.2 Surface Absorbers............................................................................................98
14.2.3 Linearity and Accuracy of Ophir Thermopile Sensors......................................99
14.2.4 Updating Thermopile Sensor Calibration Factors..........................................100
14.3 Calibration of Photodiode Sensors............................................................................ 106
14.3.1 Method of Factory Calibration ......................................................................106
14.3.2 Accuracy of Calibration..................................................................................106
14.3.3 Updating Photodiode Sensor Calibration Factors .........................................107
14.4 Calibration of Pyroelectric Sensors............................................................................ 108
14.4.1 Absorber Types Used in Ophir Pyroelectric Measuring Sensors ...................108
14.4.2 Calibration .....................................................................................................109
14.4.3 Accuracy of Calibration..................................................................................109
14.4.4 Updating Pyroelectric Sensor Calibration Factors.........................................110
14.5 Error Messages .......................................................................................................... 112
14.6 Troubleshooting ........................................................................................................ 112
14.6.1 StarBright Meter............................................................................................112
14.6.2 Thermopile Sensors, Energy Measurements.................................................113
14.6.3 Thermopile Sensors, Power...........................................................................113
14.6.4 Pyroelectric Sensors.......................................................................................113
14.7 Maintenance.............................................................................................................. 114
14.7.1 Maintenance of Thermopile Sensors.............................................................114
14.7.2 Battery Replacement.....................................................................................114
15 StarBright Specifications..............................................................................................115
15.1 System/Meter Specifications..................................................................................... 115
15.2 Sensor Specifications................................................................................................. 117

StarBright User Manual 5
1Introduction
The Ophir StarBright is a microprocessor-based Laser Power/Energy Meter that provides a broad
range of measurements, displays, and data handling options. It operates with Thermopile,
Pyroelectric, and Photodiode sensors. Taking advantage of smart connector technology, it is easy-
to-use—simply connecting the sensor configures and calibrates the StarBright to operate with that
sensor. The sensor configuration and calibration information is stored in an EEROM in the sensor
connector plug. This means that when the sensor is plugged in, StarBright automatically identifies
the sensor type, calibration, and configuration. The user does not have to adjust anything.
The StarBright’s 320x240 full color screen enhances measurement readouts in ways that simple
monochrome displays cannot. The StarBright can graph power or energy versus time. It displays
power measurements in both digital and analog form simultaneously and also has a needle type
display. It will also autorange, so you do not have to set scales; or it can manual range if you wish.
It will remember what mode you were using before you turned it off and will return to that mode
when turned on. You can zoom in on the present reading, or subtract background. Although the
calibration information is stored in the smart connector, you can recalibrate from the screen and
store the new calibration in the sensor. You can also zero the StarBright at the touch of a button.
StarBright is capable of logging data onto a USB Flash Drive (Disk On Key), as well as real-time
reporting of data via USB to Ophir’s StarLab application to display and process the information.
StarBright has RS232 capabilities as well. StarBright also has the infrastructure for field upgrading
of the embedded software, should the need arise.
Above all, the StarBright has advanced circuitry and digital signal processing for excellent
sensitivity, signal to noise ratio, accuracy, and response time. It also has special circuitry to reject
electromagnetic interference.
StarBright’s User Interface is intuitive. The keypad functionality is context-sensitive and functions
according to the needs to the present screen. Where necessary, on-screen help is provided as well,
so you should not have to refer to this manual very often.
1.1 This Document
This document covers everything you need to know to make full use of the StarBright for all your
laser measurement needs. It includes a Quick Reference (Chapter 2) to allow you to perform basic
measurements immediately, without reading the whole manual.
1.2 Related Documentation
Ophir takes pride in the wealth of laser measurement information that we provide including
FAQ’s, Catalogs, Spec Sheets, and more. Go to http://www.ophiropt.com/laser-measurement-
instruments/laser-power-energy-meters.
1.3 Support
If you have a question or require further assistance, contact Ophir customer support at
[email protected]om.

StarBright User Manual 6
2Quick Reference
This section provides a quick reference for performing basic measurements with the StarBright
Laser Power/Energy Meter.
2.1 Getting Started
The StarBright is equipped with "soft keys." That is, the functions of the keys change as indicated
by the legend above each key. It is also equipped with 4 navigation keys and a round Enter key in
the center.
To connect sensor to the StarBright meter:
Insert the 15 pin D type connector of the measuring sensor cable into the socket
marked Sensor Input on the rear panel of the StarBright meter.
To switch the StarBright on:
1. To switch on, briefly press the On/Off/Backlight switch. The unit will switch on, and the display
will appear.
2. The backlight for the StarBright’s LCD can be configured to toggle between full, half, and low
illumination. This toggling will be performed by briefly pressing the On/Off switch after the
StarBright has been switched on.
3. To switch the StarBright off, press the On/Off switch and hold it for ~ 2 seconds until the
display blanks.
To set general instrument settings:
1. Disconnect the sensor. Use the Navigation keys to select the parameter to change and press
the Enter key. Change the setting with the Navigation keys. Press the Enter key to save.
2. RS232 Baud: Set baud rate for PC communication through its COM port.
3. Max An. Output: Set desired max analog output.
4. Language: Set to desired language.
5. Line Frequency: Set to 50Hz or 60Hz, depending on the electrical power grid of the area that
you are in.
6. Date and Time: Set to correct date and time.
The StarBright automatically saves the current settings for next power up.
To zero the instrument:
1. Disconnect the sensor.
2. Make sure the instrument is not in an electrically noisy environment and is undisturbed.
3. Press Zero and Start. Zeroing takes about 30 seconds. Wait until “Zeroing completed
successfully” appears.

Quick Reference
StarBright User Manual 7
2.2 Thermopile Sensors
2.2.1 Using StarBright with Thermopile Type Sensors
1. Plug in the Thermopile sensor. StarBright will reconfigure itself to work with the attached
sensor.
2. All of the sensor’s measurement parameters are shown on the main screen. Use the
Navigation keys to select and change the parameters.
3. Use the Navigation keys to select the parameter to change and press the Enter key. Change
the setting with the Navigation keys. Press the Enter key to save.
4. StarBright saves the changes automatically for next startup of the instrument.
Warning: Do not exceed maximum sensor limits for power, energy, power density, and energy
density as listed in Sensor Specifications. Otherwise, there is a risk of damaging the absorber.
2.2.2 Using StarBright to Measure Laser Power
1. Set Measuring to Power.
2. Set Range to AUTO or one of the manual ranges. The correct manual range is the lowest one
that is larger than the expected maximum power of the laser.
3. Set Wavelength to the appropriate laser wavelength.
4. Set Average to the period you wish to average power over or set to NONE to disable.
2.2.3 Using StarBright to Measure Single Shot Energy
1. Set Measuring to Energy.
2. Set Range to the appropriate manual range. (In Energy mode, there is no autoranging.) The
correct range is the lowest one that is larger than the expected maximum pulse energy of the
laser.
3. Set Wavelength to the appropriate laser wavelength.
4. Set Threshold if you wish to change the energy threshold.
5. When the StarBright screen flashes READY on and off, fire the laser.

Quick Reference
StarBright User Manual 8
2.3 Photodiode Sensors
2.3.1 Using StarBright with Photodiode Type Sensors
1. Plug in the Photodiode sensor. StarBright will reconfigure itself to work with the attached
sensor.
2. All of the sensor’s measurement parameters are shown on the main screen. Use the
Navigation keys to select and change the parameters.
3. Use the Navigation keys to select the parameter to change and press the Enter key. Change
the setting with the Navigation keys. Press the Enter key to save.
4. StarBright saves the changes automatically for next startup of the instrument.
Warning: Do not exceed maximum sensor limits for power, energy, power density, and energy
density as listed in Sensor Specifications. Otherwise, there is a risk of damaging the absorber.
2.3.2 Setting the Measurement Parameters
1. Set Range to the appropriate manual range, AUTO, or dBm (logarithmic scale). Note that
when selecting a manual range, the correct range is the lowest one that is larger than the
expected maximum power of the laser.
2. Set Wavelength to the appropriate laser wavelength. If the wavelength you want is not among
the wavelengths listed, select one and press Modify. Using the up/down Navigation keys to
change each number and the right/left keys to move to the next number, key in the
wavelength you want. When finished, press the Enter key.
3. Set Filter to IN or OUT as physically configured on the sensor.
4. Set Average to the period you wish to average power over or set to NONE to disable.
2.4 Pyroelectric or Photodiode Energy Sensors
2.4.1 Using StarBright with Energy Sensors
1. Plug in the Pyroelectric/Photodiode energy sensor. StarBright will reconfigure itself to work
with the attached sensor.
2. All of the sensor’s measurement parameters are shown on the main screen. Use the
Navigation keys to select and change the parameters.
3. Use the Navigation keys to select the parameter to change and press the Enter key. Change
the setting with the Navigation keys. Press the Enter key to save.
4. StarBright saves the changes automatically for next startup of the instrument.
Warning: Do not exceed maximum sensor limits for power, energy, power density, and energy
density as listed in Sensor Specifications. Otherwise, there is a risk of damaging the absorber.