Impedance matching system suitable for marine communication electroacoustic transducer, and matching method thereof
An electroacoustic transducer and impedance matching technology, which is applied in the direction of frequency/direction characteristic devices, etc., can solve the problems of less research on magnetostrictive impedance matching methods, achieve long-term safe operation, improve energy conversion efficiency, well-matched effect
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[0029] refer to figure 1 , the magnetostrictive marine communication electroacoustic transducer is always an inductive load near the resonant frequency, so it can be equivalent to figure 1 The resistor R shown eq Inductance L eq Simplified circuit in series, and its no-load value R eq_0 and L eq_0 It can be measured by an impedance measuring instrument, the value R of the load eq_m and L eq_m It is obtained in real time by the digital processor DSP.
[0030] refer to figure 1 The shown magnetostrictive type marine communication electroacoustic transducer impedance matching system circuit diagram is the main circuit diagram of the magnetostrictive type marine communication electroacoustic transducer according to the present invention, including a power amplifier, a matching transformer, an impedance matching network and Transducer Equivalent Network. The power amplifier, the matching transformer, the impedance matching network and the simplified equivalent circuit of th...
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