4938 | Sound fields and adaptation microphone cartridges for specific environments, industries, and measurement conditions
Hottinger Brüel & Kjær
Price (excluding tax)
Model Description
■ 1/4 inch 4Hz to 70kHz external polar polymer sound pressure sound field Micro hon The 4938 type of sound pressure sound field type 1/4 inch microphones are designed for measuring high sound pressure and high frequency sounds. It can also withstand rough hand treatment and high temperatures up to 300 ° C. ■ Usage examples ・ Measurement in high temperature environment ・ Measurement of high sound pressure ・ Measurement of high frequency sounds ・ Flash mounting ■ Design / robustness The shape on the front of the microphone is designed to show excellent performance during flash mounts. In addition, the diaphragm is laser welded by microphone housing so that the sensitivity does not change even if hand treatment is received during flash mount. This microphone has the robustness that can withstand 1m falls set in IEC 68-2-32. ■ Calibration Use 4228 type pistonphones and 1/4 inch adapter DP-0775 to proofread 250Hz sensitivity. The actuator UA-0033 and adapter DB-0264 can measure the actuator response. By adding a free sound field correction by model number to the actuator response, you can get a free sound field response.
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Part Number
4938
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Handling Company
Hottinger Brüel & Kjær
Sound fields and adaptation microphone cartridges for specific environments, industries, and measurement conditions 4938's performance table
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