Summary of Contents for Awaiba Dragster V3-8K-3.5
- Page 1 DRAGSTER CONFIDENTIAL DRAGSTER Calibration Revision : 0.0.04 Date : 25/06/09 Contact AWAIBA GmbH Am Wegfeld 30 90427 Nurnberg Germany www.awaiba.com 1 Introduction DRAGSTER Evaluation DATE: 25/06/09 PAGE: Version 0.0.04...
- Page 2 DRAGSTER CONFIDENTIAL This document gives a brief explanation about how to configure the Dragster sensors in order to reduce the effects of the mismatch between pixel segments and to make the light response linear for all sensor. 2 Setup For this calibration the system will include an Eval board configured as medium camera link, a Dragster sensor V3-8K-3.5, the communication software DragsterComm and the frame grabber Me4 from SiliconSoftware.
- Page 3 DRAGSTER CONFIDENTIAL Prevent any light of getting to the sensor by switching off the light and placing a black cap over Make a “Send All” of the default settings with DragsterComm. First we'll make a rough tuning so that all segments show a histogram over 0. Once this is achieved a fine tuning of the individual black levels has to be made so all histograms overlap and look like a single one.
- Page 4 DRAGSTER CONFIDENTIAL Illustration 1: Black level calibrated After this we should make the offset correction in order to use again all the ADC range, otherwise the first DN are wasted for the black signal and we'll never get pixels with values under what was set.
- Page 5 DRAGSTER CONFIDENTIAL ADC Gain calibration To calibrate the gain the best is to use a very stable light source with the possibility to regulate the light energy. LEDs are recommended. Use the maximum light energy available or tune it so that the histogram is between 3000DN and 3500DN Set the sensor to the operating point, especially the gain programmed on the sensor to the desired setting in your application.
- Page 6 DRAGSTER CONFIDENTIAL Figure 4: ADC gain calibrated DRAGSTER Evaluation DATE: 25/06/09 PAGE: Version 0.0.04...
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