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ZT-344Microphone Cartridge - 1/4''-PF
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Performance Charts
Description
ZT-344 high pressure level microphone is a pre-polarized 1/4 inch pressure field measurement microphone that converts sound signals into electrical signals. ZT-344 is specifically designed for high sound pressure signal acquisition, with an input upper limit of up to 175dB. In order to achieve such high sound pressure collection capability, we have made some special designs for the back plate of the microphone, such as the diaphragm and other materials.
Specifications
Sound field type Pressure field type
Sensitivity mV/Pa (dBV/Pa) 0.56mV(-65dB) ± 3dB
Frequency response (dB) 10Hz-20kHz ± 2dB
Polarization voltage (V) 0V
Typical capacitance（pF, @250Hz） 7pF
Dynamic range (re. 20 uPa) 60dBA-175dB
Upper limit of dynamic range (re. 20 uPa) ≥ 175dB (THD < 3%)
Lowwer limit of dynamic range (re. 20 uPa) ≤ 60dBA
Range of operating temperature -30℃ to +80℃
Temperature coefficient (-10 ℃ to 50 °C) 0.015dB/℃ (-10℃ to +50℃)
Static pressure coefficient -0.01dB/kPa
Relative humidity range 0 - 90% RH without condensation
Pressure equalization method Average side pressure
IEC 61094-4 Designation WS3P
Height (without protective grid) 10.5mm
Diameter (including protective grid) 7mm
Height (without protective grid) 9mm
Diameter (including protective grid) 6.35mm
Preamplifier with thread 5.7mm-60UNS
Protection Grid thread 6.35mm-60UNS
Applications
Extremely high-SPL measurementShock wave testing