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■ 1/4 inch 4Hz -100kHz external polarized freedom Micro hon The 4939 type 1/4 inch free sound field type micro hon is designed to measure high sound pressure and high frequency sounds. Micro hons are optimized so that the diaphragm and protective grid are made of stainless steel, which can withstand harsh environments and can be used at high temperatures up to 150 ° C (302 ° F). ■ Usage examples ・ Measurement of high sound pressure ・ Measurement of high frequency ・ Model experiment ■ robustness Type 4939 microphones can withstand IEC 68-2-32 1m fall test. ■ Calibration Use 4228 type pistonphones and 1/4 inch adapter DP-0775 to proofread 250Hz sensitivity. The actuator UA-0033 and adapter DB-0264 can measure the actuator response. By adding a free sound field correction by model number to the actuator response, you can get a free sound field response.
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4939Handling Company
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