Low-frequency characteristics extension for vibration sensors

(整期优先)网络出版时间:2004-01-11
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Traditionalmagneto-electricvibrationsensorsandservoaccelerometershavesevereshortcomingswhenusedtomeasurevibrationwherelowfrequencycomponentspredominate.Alowfrequencycharacteristicextensionforvelocityvibrationsensorsispresentedinthispaper.Thepassivecircuittechnology,activecompensationtechnologyandtheclosedcyclepolecompensationtechnologyareusedtoextendthemeasurablerangeandtoimprovelowfrequencycharacteristicsofsensors.ThsesthreetypesoflowfrequencyvelocityvibrationsensorshavebeendevelopedandwidelyadoptedinChina.