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■ 1Hz to 20kHz external polarized probe microfon It is designed for sound pressure measurement in places that are not suitable for normal microphone use, such as narrow and difficult places and harsh environments. The 4182 type has a flat frequency response from 1Hz to 20kHz and a very smooth high -frequency roll -off characteristics. ■ Usage examples ・ Measurement of short -distance sound fields of speakers ・ Distribution measurement of internal sound field ・ Telephone ・ Hi-Fi headphones ·musical instrument ・ Measurement of radiation sound from complex devices ・ Measurement of attenuity characteristics of hearing protector ・ Measurement of acoustic impedance It has a small, lightweight and durable structure. Because it is small, it is possible to measure quite close to the sound source. In addition, in sound pressure measurement, which requires high space resolution, measurement points can be set at a narrow interval. With the high impedance at the narrow probe end, it is also possible to measure 1cm^3 small -bodies with almost no acoustic load effect. It can be exchanged, hard to break, and has a variety of lengths, and can be applied even in places where measurement is difficult (for safety reasons, 4182 probe microphones are in the human body measurement. It can not be used) . The static pressure inside the probe microphone can match the static pressure of the measurement location.
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4182Handling Company
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