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GPS Prueftechnik Digital Colour Analyzer User Manual

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User Manual for Digital Colour Analyzer
GPS Prueftechnik GmbH
www.gps-prueftechnik.de
E-Mail: info@gps-prueftechnik.de
02.11.2018
1

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  • Page 1 User Manual for Digital Colour Analyzer GPS Prueftechnik GmbH www.gps-prueftechnik.de E-Mail: info@gps-prueftechnik.de 02.11.2018...

  • Page 2: Table Of Contents

    Table of contents: LED Digital Colour Analyzer 1.1 Mounting the Digital Colour Analyzer 1.2 Mounting the fiber-optic 1.3 Cutting the fiber Interface and Power Wiring 2.1 Mounting a stand-alone unit 2.2 Mounting connected units 2.3 Mounting interconnected units for USB 2.4 Mounting interconnected units for RS 232...

  • Page 3: Led Digital Colour Analyzer

    Analyzer. If this step is implemented properly the resulting tests will be more stable and repeatable with low risk of false failures. Figure 1: GPS Digital Colour Analyzer 1.1 Mounting the Digital Colour Analyzer The LED Analyzer can be mounted on the top as well as on the bottom side of the fixture.

  • Page 4: Mounting The Fiber-Optic

    1.2 Mounting the fiber optic Construction of the fixture is one of the most critical aspects of a successful implementation of a LED Colour Analyzer. If this step is implemented properly the resulting tests will be more stable and repeatable with a low risk of false measurements.

  • Page 5: Cutting The Fiber

    There are different possibilities to position a fiber above the LED which has to be tested. 1.Mounting with a 75 mil socket: The recommended method of mounting the fiber is using the supplied 1mm ID, with a 75 mil socket. Another advantage of the socket is the internal indentation, which fixes the fiber effectively in position during the debugging.

  • Page 6: Interface And Power Wiring

    2. Interface and Power Wiring 2.1. Mounting a stand-alone unit for USB Interface The Digital Colour Analyzer can be operated by RS 232 as well as by an USB Interface. During RS 232 operating a voltage of 7-15V, 80mA has to be applied additionally.
  • Page 7 2.2. Mounting a stand-alone unit for RS 232 Interface The Digital Colour Analyzer can be operated by RS 232 as well as by an USB Interface. During USB operating the power supply for the board takes place through the USB Interface.

  • Page 8: Mounting Interconnected Units For Usb

    2.2. Mounting interconnected units for USB If the power input is 80 mA per board up to 5 boards can be operated through the USB Interface. (Complete supply voltage about 400mA). In this case the LED Colour Analyzer can be tested 25 LEDs. See the physical layout below: Figure 10a: Connection Dia- 02.11.2018...

  • Page 9: Mounting Interconnected Units For Rs 232

    2.4. Mounting interconnected units for RS 232 The Digital Colour Analyzer can be connected to 99 boards so that 495 LEDs can be tested. See the physical layout below: Figure 10b: Connecting Diagram 02.11.2018...

  • Page 10: Setting The Digital Colour Analyzer

    3. Setting the Digital Colour Analyzer After the software has been installed and the Digital Colour Analyzer has been attached the following settings have to be respected. Configuration: Interface The USB Port is configured as a virtual Com Port and will be designated a name such as Com5, Com6, etc.

  • Page 11: The Digital Colour Sensor

    3.1 The Digital Colour Sensor To enable a measurement over a wide range of illuminance, the photodiode sensitivity can be selected by modes ( high sensitivity mode and low sensitivity mode). The photodiode active area which is used to measure the light depends on which sensitivity mode has been selected (high sensitivity mode: 9x9 elements, low sensitivity mode: 3x3 elements in center).
  • Page 12 3.2 Setting an offset to calculate the tristimulus values x and y There are three possibilities to store an offset for the calculation of the tristimulus values x and y. These are explained in the following: GPS Prüftechnik offers a service for the calibration of the LED Analyzer Board. In this process customers LEDs to be tested are measured with a proven calibrated spectrometer under a standardized process in our company.

  • Page 13: Manual For The Gps Led Analyzer Software

    3.3 Manual for the GPS LED Analyzer Software 3.3.1 The main screen of the LED Analyzer Software with PopUp-menus After starting the LED Analyzer Software the main screen appears (see figure below). Through this main screen you reach all required functions and control elements. The upper line shows several PopUp-menus which are explained shortly below and are described in details in the follow- ing chapters: ...
  • Page 14 The graphic beside shows a detail of the main screen of the LED Analyzer. The following steps explain the functions of the individual controls:  Connect Button After pressing the “Connect Button” the LED Analyzer is connected with the software. In doing so the button label turns into “Disconnect”.

  • Page 15: Configuration Of The Led Analyzer

    3.3.2 Configuration of the LED Analyzer Before a measurement can be carried out with the LED Analyzer the following configuration settings have to be selected.  Serial port Through this PopUp menu you select the Com-port which Windows assigns the LED Analyzer. Through The selection of “Auto”...

  • Page 16: To Perform A Measurement By Using The Functional Elements Of The Main Screen

    3.3.3 To perform a measurement by using the functional elements of the main screen After having done all required settings through the configuration window it is now to find out the right test mode and the settings for your application. Basically it is recommended to capture with a greatest possible light intensity.

  • Page 17: To Perform A Measurement And Compare Several Leds By Using

    3.3.4 To perform a measurement and compare several LEDs by using “Measurement Window” and “Settings Window”. 3.3.4.1 Measuring and comparing LEDs with differnet light intensities In order to compare LEDs use the “Measurement“ window in connection with the “Measurement settings“ window (see figure).
  • Page 18 Let us assume that the five read in LEDs are considered as reference LEDs by which the following LEDs of the same type are compared. To this the determined values have to be stored with the “Save reference“ button and uploaded with the “Load reference“ button.
  • Page 19 3.3.4.3 Measuring and comparing several LEDs of the same light intensity To compare LEDs of the same light intensity it is sufficient to determine the optimal sensor settings through the main screen. Enter the “Measurement settings“ window. By clicking the sensor line then select the sensor of which You want to take over the parameters.
  • Page 20 4. Capture Commands for the LED Analyzer 4.1. Connection Test Transmit Description Receive Example Comment testcon Connection test OK oder xOK testcon 2 OK x = number of boards Description: This command tests the connection between the test system/PC and the Analyzer. If only one board is connected to the tester and the connection works the Analyzer will transmit the character OK.
  • Page 21 4.3. Manual Capture Captures and stores the colour and intensity of each LED with specified exposure range. Transmit Description Receive Example Comment capturexyz b x=Exposure range capture time capture 215 3 x=Messzeit 200ms 1=600 ms 2=200 ms y=Sensor High (9x9) 3=120ms 4=60 ms z=Kanal 5...
  • Page 22 4.4 General Capture of Pulse-Width-Modulated LEDs Pulse-Width-Modulated ( Captures and stores the colour and intensity of PWM) LEDs. Transmit Description Receive Example Comment capturepwm Start PWM-Capture Colour Intensity capturepwm OK Description: Puls-Width-Modulated (PWM) LEDs This command instructs the LED Analyzer to read and store the colour and intensity of all LEDs. In this case a default value which is sufficient for most of the LEDs is used.
  • Page 23 4.6 Get stored RGB Value and Intensity The get data commands are used to read out the Colour, Saturation and Intensity data stored by the capture commands. Transmit Description Receive Example Comment getrgbi# b Get stored RGB Value and Intensity rrrr gggg bbbb iii getrgbi3 5 # = 1..5 if b = board...
  • Page 24 4.10 Get stored Colour Temperature Value in Kelvin Transmit Description Receive Example Comment getctemp# b get Colour Temperature Value Xxxxx.x Getctemp 1 00000.0 = no calculation in °Kelvin possible 05678.9 # = channel no. 1..5 b # b – value see getrgbi # = 1….495 4.11 Get the Value for Intensity Transmit...
  • Page 25 4.15 Set the X Chromaticity Offset Transmit Description Receive Example Comment setxoffset#+-0.xxx set x chromaticity offset setxoffset1+0.050 set fiber 1 x offset to # = fiberno. 1..5 b +0.050 or # = 1..495 #=sensor, xxx=value, b=board 4.16 Set the Y Chromaticity Offset Transmit Description Receive...
  • Page 26 4.20 Set amplification for Intensity Transmit Description Receive Example Comment setintgain#xxx set amplification for intensity setintgain 1095 fiber 1 set to 95% setintgain 23095 fiber 23 set to 95% #=sensor xxx=value b=board 4.21 Set user capture time Transmit Description Receive Example Comment setusertime#### b...
  • Page 27 4.26 Get the Serial Number of the Analyzer Transmit Description Receive Example Comment getserial Get serial number of the Analyser xxxx getserial 4-digit 75A6 4.27 Get the Version of the Firmware Transmit Description Receive Example Comment getversion Get the version of the firmware xxxx getversion 4-digit...
  • Page 28 GPS Group Office South: Hungary: GPS Prüftechnik GmbH GPS Prüftechnik Kft. Waldstr. 4 Zrinyi M. u. 105 D-82239 Alling HU-8900 Zalaegerszeg Telefon +49-8141-52 747-0 Telefon +36-92 510 740 Telefax +49-8141-52 747-47 Telefax +36-92 510 741 Office Rhein/Main: Switzerland: GPS Prüftechnik Rhein/Main GmbH GPS Prüftechnik AG Ferdinand-Porsche-Str.17 Täfernstr.

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