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PEM (Center)
hirotaka.yuzurihara - 20:28 Tuesday 20 April 2021 (16515) Print this report
Investigation of self-noise of microphone (B&K 4188-A-021)

[Yokozawa, Washimi, Yuzurihara]

We started the investigation of self-noise of microphone (B&K 4188-A-021), which was installed in PSL room.

Beside of PEM IY0 RACK, we are measuring the data by two microphone (see the attached figure). It started from 16:00.

The channel names are K1:PEM-SENSOR_RACK_IY0_DSUB30_OUT_DQ and K1:PEM-SENSOR_RACK_IY0_DSUB31_OUT_DQ .

Later we calibrate the data. By comparing two data, we investivate the self-noise of microphone.

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