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Reports until 13:15, Wednesday 24 June 2026
H1 SUS
thomas.roocke@LIGO.ORG - posted 13:15, Wednesday 24 June 2026 (90743)
BBSS M1 QOSEM Drive Transfer Function

To aid in testing the BBSS M1 QOSEM coils for issues related to the cross coupling (see LHO alog 90665), below is the DC tranfer function from DAC counts (16 bit) to the voltage across the QOSEM coils. This assumes a coil resisatnce of 35ohms, which is the nominal spec, but they can vary by ~10%.

DAC drive to voltage across the coil = 3.18e-5 V/cts

Displaying report 1-1 of 1.