4949 | Ideal for precision surface sound pressure measurement 4949 type automotive surfaces Microphone
Hottinger Brüel & Kjær
Price (excluding tax)
Model Description
It is a 4949 type automotive surface microphone (one coaxial cable included).
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Atmospheric pressure coefficient (250Hz)
Bias voltage
Clipping limit
Constant current supply
Correction by Type 4228 with DP 0977 or DP 0979
Diacphram co -amal frequency number
Equivalent air volume
Estimated long -term stability
Frequency response (sound pressure sound field)
Humidity impact
Lower frequency (–3db)
Maximum operating range
Maximum output current
Maximum output voltage
Micro hon unit diameter
Micro hon unit height
Microphone unit weight
Operating temperature range
Operation humidity range
Output impedance
Pressure adjustment vent
Self -noise
Sensitivity (250Hz)
Storage temperature
Supply voltage (when no load)
Temperature coefficient (250Hz)
Vibration sensitivity (<2kHz)
sensitivity
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Part Number
4949
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Product
Ideal for precision surface sound pressure measurement 4949 type automotive surfaces Microphone
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Handling Company
Hottinger Brüel & Kjær
Ideal for precision surface sound pressure measurement 4949 type automotive surfaces Microphone 4949's performance table
Items marked with have different values depending on the model number.
| Product Image | Price (excluding tax) | Atmospheric pressure coefficient (250Hz) | Bias voltage | Clipping limit | Constant current supply | Correction by Type 4228 with DP 0977 or DP 0979 | Diacphram co -amal frequency number | Equivalent air volume | Estimated long -term stability | Frequency response (sound pressure sound field) | Humidity impact | Lower frequency (–3db) | Maximum operating range | Maximum output current | Maximum output voltage | Micro hon unit diameter | Micro hon unit height | Microphone unit weight | Operating temperature range | Operation humidity range | Output impedance | Pressure adjustment vent | Self -noise | Sensitivity (250Hz) | Storage temperature | Supply voltage (when no load) | Temperature coefficient (250Hz) | Vibration sensitivity (<2kHz) | sensitivity |
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Available upon quote | --0.007db/KPA | 12.7V ± 1.3V | > 144db Re 20 µPa Peak (7V Peak maximum sensitivity) | Deltatron power supply 2MA to 20ma, nominal 4MA | 0.00db | 24kHz, representative value (90 ° phase shift) | 6.8mm^3 ± 0.8mm^3 (2σ) | <0.001db/20 ° C: <50% RH, <0.025dB/20 ° C: <90% RH, <0.5b/month 100 ° C | 10Hz to 10kHz ± 1db Re 250Hz, 5Hz to 20kHz ± 3db Re 250Hz | <0.1db No condensation | 0.5 Hz to 5 Hz | > 140db SPL (500Hz, 3%distortion) | 1 mA or less of peak value supply current | > 7v Peak | 20mm (0.79 ″) | 2.5mm (0.1 ") | 2.3g (0.08 Oz.) Not included cable | –30 to +100 ° C (--22 to +212 ° f) | 0 ~ 100% RH dew condensation | <50Ω 1kHz, 22Ω 430PF representative value | Front vent (diaphragm end) | <9 µV, linear 22.4Hz ~ 22.4kHz, representative value: 6 µV, A characteristics, equivalent conversion SPL 8.9 µV, Linear 22.4Hz ~ 22.4kHz, 32dB public sensitivity equivalent SPL | --39 DB ± 3 DB RE 1 V/PA, 11.2 MV/PA | –30 to +70 ° C (--22 to +158 ° f) | + 22V to + 30V DC, minimum 18V for limited specifications | + 0.013db/℃ | 1m/s^2:65 DB, etc. | 11.2 MV/PA |
There are 2 models for this product.
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