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Chapter 6: Auxiliary Analog Input
The Auxiliary Analog Input port (AUX IN) is designed to measure a voltage or current
signal and can be used as an independent data acquisition channel or as a reference
channel to correct CCD acquisitions for power fluctuations in an excitation source.
The AUX IN port accepts signals from a single channel detector up to +/- 10 V in
Voltage
mode or up to +/-
10 µA
in
Current
mode via an SMA connector. The AUX IN
input channel incorporates programmable gain capability (1/10/100/1000) to adjust for
signal sensitivity as required.
Normalization (Reference)
The Normalization mode of the AUX IN port allows the system to correct acquired data
for some external reference signal. For example, a silicon detector might be used to
monitor the power of an excitation lamp or laser. The final data can be adjusted for the
power fluctuations in the lamp/laser by dividing the data by the reference signal. The
Synapse CCD automates this process by measuring the AUX IN signal during integration
time of the CCD. Signal values from the AUX IN port are averaged over the CCD
integration time and the CCD data is divided by the average value from the AUX IN Port.
Figure 9.
Typical Configuration for Normalization using Synapse AUX IN Port
Synapse CCD
DS
S
iHR320
Sample
MAX
Laser
Reference
Detector
Beamsplitter
AUX IN
Port
Summary of Contents for JOBIN YVON SYNAPSE
Page 1: ...SYNAPSE CCD Detection System User Manual Part Number 81100 Revision 2...
Page 10: ...Preface x...
Page 14: ...System Description and Specifications 4...
Page 28: ...Detector System Installation 18...
Page 38: ...Initial Power up and Operation 28...
Page 48: ...Temperature Control 38...
Page 72: ...Appendix A Dimensional Drawings 62 Figure 17 Distance from Focal Plane to CCD Chip...
Page 73: ...Appendix A Dimensional Drawings 63 Figure 18 Synapse Power Supply Unit...
Page 74: ...Appendix A Dimensional Drawings 64...
Page 86: ...Appendix C Performing Routine Procedures with SynerJY 76...
Page 100: ...Appendix E Accessories 90...
Page 104: ...Warranty 94...
Page 113: ...103 Notes...
Page 114: ...104 Notes...