Ohishi, Tanioka, Nagano(s)

After a couple of accidents, we eventually installed the IMMT1 suspension into the IMM chamber. (related report : 5191, 5233, 5242, 5247)

Mirror was suspended again after gluing a magnet, which fell yesterday (5247).

Transfer function from the magnet-coil actuator to mirror displacement was measured by a photo sensor once again. The function had the almost expected frequency response, although it showed week coupling between length motion and another d.o.f . (See attached figure) This coupling could be decreased by balancing magnet-coil actuators.