Measurement microphone cartridge MK 202 E

1/2"

The 1/2” measuring microphone cartridge MK 202 E is designed for acoustical measurements in research and development and also for industrial use. Some applications include audiology, the measurement of building acoustics and noise levels. The microphone capsule has a fixed layer of backelectret to supply the polarization voltage. It is designed and very carefully constructed to ensure excellent long-time stability of the electroacoustical 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 equalization of the static air pressure between the inside and outside of the MK 202 E cartridge is by means of a capillary tube rear-vented into the preamplifier. This enables the use of the optional TA 202 dehumidifier. 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 microphone cartridge MK 202 E is designed for sound level meters of IEC Type 1 according to IEC 61672.