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Microphones and Acoustics

Frequently Asked Questions

Get your most commonly asked acoustics questions answered.

Section I: Definitions and Terminology
Section II: Microphone Recommendations
Section III: Calibration and Testing
Section IV: Specification Clarifications
Section V: Specialty Microphone Applications
Section VI: Maintenance and Handling

If you don’t see the answer to your question, call our 24/7 SensorLineSM 716-684-0001 to speak with an application engineer or visit Ask the Acoustics Experts.

What should I do if the pad on the water resistant microphone (PCB® model 130A24) gets clogged from contamination or oil?

The seal may accumulate debris or residue over time. The intention is to remove the grid cap and replace the seal on model 130A24.  If a change in frequency response (at high frequencies) after repeated use in hostile environments is seen, then it may be time to replace the seal.  The grid cap should be installed immediately after changing the pad.  Instructions on replacing the pad are provided in the product manual.

What should I do if the pad on the water resistant microphone (PCB® model 130A24) gets clogged from contamination or oil?

The seal may accumulate debris or residue over time. The intention is to remove the grid cap and replace the seal on model 130A24.  If a change in frequency response (at high frequencies) after repeated use in hostile environments is seen, then it may be time to replace the seal.  The grid cap should be installed immediately after changing the pad.  Instructions on replacing the pad are provided in the product manual.