Bruel & Kjaer 4192

4192
Type 4192 is designed for high-precision coupler measurements or ANSI noise measurements. Being... mehr
Produktinformationen "Bruel & Kjaer 4192"
Type 4192 is designed for high-precision coupler measurements or ANSI noise measurements. Being externally polarized, Type 4192 must be used with a classical preamplifier. USE SCENARIOS Precision coupler measurement Premium class ANSI sound level meters General random incidence measurements USE OF PRESSURE-FIELD MICROHONES Pressure-field microphones are optimised to have a flat frequency response in a pressure field. The microphones should be used for making measurements in small, closed couplers or close to hard, reflective surfaces. Type 4192 is suited for situations where a robust and stable pressure-field microphone is required. STABILITY A press-fitted, stainless-steel diaphragm ensures superior long-term stability and mechanical robustness – Type 4192 will withstand the 1 m drop test of IEC 60068-2-32. POLARIZATION VOLTAGE Type 4192 requires an external polarization voltage and must therefore must be used with a classical preamplifier. Externally polarized microphones may be used at higher temperatures without severe changes in sensitivity. Type 4192 is available in TEDS combinations with the classical Microphone Preamplifier Type 2669. The TEDS microphone is considered one unit and has been sealed in a clean environment. The TEDS is programmed with the loaded sensitivity of the actual cartridge and the data is therefore readily available. The default TEDS template is to IEEE P 1451.4 but TEDS to IEEE 1451.4 is available on request.
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