Resonant sensor system is a kind of quasi-digital measuring device utilizing the effect that the natural frequency of the resonator changes according to the measured frequency.
谐振式传感器是利用某种谐振子的固有频率随被测物理量的变化进行测量的一类准数字式装置。
2
As it is shown in this paper the breaking state of a concrete pile can be judged by measuring its "resonantfrequency spectrum".
分析表明，可以通过对其共振频谱的测量而判定桩的断裂情况。
3
The author has developed a dissipation factor measuring system using the variable frequency series resonant voltage.