CPM Test & Evaluation

click to download T&E results for QM/FM


Test and Evaluation of Detector

The test and evolution of QM detector and FM detector were performed using a checkout system. The checkout communicates with the CPM by sending commands from the PC application and receiving telemetry data and user counts. As a part of clearing the environmental tests the command links and data links were verified. The counts without source under different LLD and count settings was observed and recorded as a basis of qualification. The detector was exposed to Radioactive sources like Ba133 (330 keV), Cs137 (660 keV), Eu152 (1112 keV & 1408 keV) for calibration.

Test Setup

The CPM Checkout System consists of following Items:
  • Checkout PC with PCI based NI 32 bit HS DIO CARD (NI-6534)
  • NI Connector Box and Cable
  • Interface Cable between CPM Card and NI Connector Box
  • Checkout Card
  • Power Supply : +37V, 2A
  • Power Supply : +5V, 1A

Test Sequence

Test Description
QM FM
Initial SRC Pre environmental test
at standard room condition
Pre environmental test
at standard room condition
EMI/EMC 1. Radiated Susceptibility: RS03 1.Conducted Emission: CE03
2.Radiated Emission: RE02
3.Conducted Susceptibility: CS01,
CS02, CS06
4.Radiated Susceptibility: RS03
Thermal Cycling -15ºC for 6 Hrs
followed by 65ºC for 6Hrs.
(Last ½ hour package is powered)
-10ºC for 6 Hrs
followed by 60ºC for 2Hrs
and at 56ºC for 4hours
Vibration test 1. Sine vibration
2. Random Vibration
1. Sine vibration
2. Random Vibration
Shock Test Performed Not performed
Thermo vacuum test 1. at -15ºC and 65ºC
2. 5 short cycles – dwell time 2 hours
3. 1 long cycle – dwell time 24 hours
4. Transition time : 1 degree / min
1. At -10ºC and 55ºC
2. 5 short cycles – dwell time 2 hours
3. 1 long cycle – dwell time 24 hours
4. Transition time : 1 degree / min
Final SRC Post environmental tests
at standard room condition
Post environmental tests
at standard room condition