METHOD FOR ASSESSING QUALITY OF ELECTRET ELECTROACOUSTIC TRANSDUCERS AND DEVICE WHICH IMPLEMENTS SAID METHOD Russian patent published in 1999 - IPC

FIELD: radio engineering. SUBSTANCE: method involves measuring voltage-capacitance characteristics in order to measure amplitude-frequency response, measuring level of air space between diaphragm and opposite electrode of transducer and sensitivity of transducer. Corresponding device has indicator, control unit for information processing and storage, which is connected to transducer under investigation. Indicator is designed as capacitance detector. EFFECT: decreased labor intensity and increased speed of measurement, while maintaining same quality level by means of automatic measurement of characteristics of electret electroacoustic transducers upon their mass production. 2 cl, 9 dwg