IMI Industrial Vibration Sensors Katalog Seite 71

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Energy Power Generation Nuclear Power Instrumentation n High temperature vibration measurements n Steam turbine testing n Monitoring of boiling water reactors PCB s Charge Output accelerometers utilize piezo ceramic sensing elements to directly output an electrostatic charge signal that is proportional to applied acceleration Charge output accelerometers do not contain built in signal conditioning electronics As a result external signal conditioning is required to interface their generated measurement signals to readout or recording instruments The sensor s charge output signals can be conditioned with an in line fixed charge converter Since there are no electronics built into Charge Output accelerometers they can operate and survive exposure to 649 C for some models In addition Charge Output accelerometers are used for thermal cycling requirements or to take advantage of existing charge amplifier signal conditioning equipment It is important to note that measurement resolution and low frequency response for charge output acceleration sensing systems are dependent upon the noise floor and discharge time constant characteristics of the signal conditioning and readout devices used 68 visit us online at www imi sensors com 1 716 684 0003