Title: Electromagnetic pulse transducer
Application Number: 85100714 Application Date: 1985.04.01
Publication Number: 1003762 Publication Date: 1986.10.01
Approval Pub. Date: Granted Pub. Date: 1989.04.05
International Classifi-cation: G10K9/13,H04R11/44
Applicant(s) Name: Eastsea Station of Acoustic Inst., chinese Academy Address:
Inventor(s) Name: Hu Jiazhong
Attorney & Agent: ZHANG XUEQI
Abstract:
     The design of the transducer comprises a high-order resonant mode with thin plate for the increase of its electroacoustic converting efficiency, and a uneven tuning method using the major frequecy of the exciting force and such high-order resonant mode to ensure the band width of radio frequency above the 1-2 multiple frequency range. An electromagnetic pulse sound source designed by the said principle can achieve a sound level of 107 dB and a radiofrequency band width above 2 multiple frequency range, the weight and power consumption of device is relative small compared with the same used in abroad.
Time: 59