Reports until 11:07, Thursday 19 September 2013
H1 AOS
thomas.vo@LIGO.ORG - posted 11:07, Thursday 19 September 2013 (7806)
ETMX ACB Photodiodes Testing
Filiberto, Frank, Thomas

This morning we tested the continuity and shined a flashlight on each of the PDs to get a response.

PD forward voltage:
Pin3&4:      0.415V
Pin7&6:      0.418V
Pin10&9:     0.417V
Pin13&12:    0.417V

We tested response of each PD:
Pin3&4:      64mV to 270mv PD4
Pin7&6:      87mV to 320mV PD3
Pin10&9:     66mV to 220mV PD2
Pin13&12:    57mV to 240mV PD1

The PDs are not calibrated, and for their purposes, maybe they don't need to be but they work.