Common name: Microtech Gefell MK 301
Production Status: In production
The MK 301 is a 1/4” measuring microphone cartridge is designed for acoustical measurements in research and development and also for industrial use. Applications include audiometry, the measurement of building acoustics and noise levels. The microphone cartridge is designed and manufactured to ensure excellent long-time stability of the electro acoustical parameters. All essential components including the diaphragm are made of nickel and the diaphragm is bonded by a special galvanic process. The rear electrode is insulated from the cartridge housing by a quartz glass plate. The diaphragm is protected against mechanical damage by a protection grid. The equalisation of the static air pressure is achieved via a tube between the inside and outside of the capsule connected to the preamplifier (rear-vented). The cartridge uses the international standard thread 60 UNS which ensures compatibility with a wide range of calibration equipment and measurement devices available from many manufacturers. The measuring microphone cartridge MK 301 is designed for sound level meters of IEC Type 1 according to IEC 61672. Includes wooden box.