测量用变频电量变送器校准规范
Calibration Specification of Variable Frequency Electrical Quantities Transducer for Measuring
2016-03-03
CB 20195-2016
高静水压下2kHz~60kHz大功率水声换能器特性测量方法
Methods for measurement of performance characteristics of high-power underwater acoustic transducer in the frequency range 2 kHz to 60 kHz at high hydrostatic pressure