Patent ID: 11959797
Assignee: BEIJING TAIFANG TECHNOLOGY CO., LTD.
Field: Measurement (Instruments)
Classification: CPC G | IPC G

Claim 2:
3. The piezoelectric device online detection apparatus according to claim 2, wherein the environmental detection sensor is a temperature sensor; and
the compensation module is configured to compare temperature data collected by the temperature sensor with a preset temperature threshold; when the temperature data is greater than or equal to the preset temperature threshold, obtain a capacitance of the elastic wave sensor through a following formula: C1(t)=a×t2 +b×t+c(t≥t0); and when the temperature data is less than the preset temperature threshold, obtain a capacitance of the elastic wave sensor through a following formula:C2(t)=l×t1+m×t+n (t<t0), wherein C1(t) and C2(t) are capacitances of the elastic wave sensor; t is an ambient temperature; a, b, c, l, m, and n are constants.