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ZT-333 Microphone Cartridge - 1/2''-FF
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Description
ZT-333 is a 1/2'' free-field type pre-polarization measurement microphone. The design of titanium alloy and precision stainless steel makes it not only excellent in corrosion resistance and robustness, but also extremely high stability, so that it is ideal for outdoor and indoor applications. During the test, due to the presence of the microphone, the sound field will be affected and the high-frequency sound field at its position will be changed. Based on this characteristic, the HF frequency response of the measurement microphone is adjusted to compensate for the error caused by the high-frequency sound pressure in the sound field. ZT-333 is a kind of high-performance measurement microphone.
Specifications
Sound field type Free field type
Sensitivity (@ 250 Hz ± 2 dB) 50 mV/Pa
Sensitivity (@ 250 Hz ± 2 dB) -26 dB re 1V/Pa
Frequency response (±2 dB) 3.15Hz~20kHz
Polarization voltage 0V (pre-polarization)
Typical capacitance 15pF
Upper limit of dynamic range (re. 20 uPa) ≥146dB(distortion < 3%)
Lower limit of dynamic range (re. 20 uPa) ≤15dB(A)
Range of operating temperature -30℃~80℃
Temperature coefficient (-10 ℃ to 50 °C) 0.012dB/℃
Static pressure coefficient -0.01dB/kPa
Relative humidity range (without condensation) 0~90%RH
Relative humidity coefficient <0.1dB(0 - 90% RH without condensation)
Pressure equalization method Post-pressure equalization
IEC 61094-4 Designation WS2F
Height (without protective grid) 16.3mm
Diameter (including protective grid) 13.2mm
Height (without protective grid) 15.2mm
Diameter (without protective grid) 12.7mm
Preamplifier with thread 11.7mm-60UNS
Protective grid thread 12.7mm-60UNS
Applications
Precision acousticsLaboratory measurement