Galvanometer

Model 6231C Optical ScannerMechanical SpecificationsRated Angular Excursion: 40 degreeRotor Inertia: 0.82 gm*cm2, +/ - 10%Torque Constant: 90,600 dyne-cm/amp, +/ - 10%Maximum Coil Temperature: 110 CThermal Resistance (Coil to Case): 1.3 C/Watt, MaxElectrical Specifications Drive MechanismCoil Resistance: 1.1 Ohms, +/- 10%Coil Inductance: 140 uH, +/- 10%Back EMF voltage: 0.16 mV/degree/sec, +/- 10%RMS Current: 5.4 Amperes at Tcase of 50C, MaxPeak Current: 25 Amperes, MaxSmall Angle Step Response Time: 0.25 ms, with balanced load of 0.3 gm*cm2Position DetectorLinearity: 99.99, Minimum, over 20 degreesScale Drift: 50 PPM/C, MaximumZero Drift: 15 urad/ C, MaximumRepeatability, Short Term: 8 microradiansOutput Signal, Common Mode: 155uA with AGC current of 30 mA, +/-20%Output Signal, Differential Mode: 11.7uA/degree, at common mode current of 155 uA, +/-20%