GRAS 147AX CCP Rugged Pressure Microphone
Engineered for Harsh Environments and Confined Spaces
The GRAS 147AX is a robust pressure microphone designed specifically for challenging measurement conditions such as those found in automotive engine compartments and other confined or exposed environments. This surface-mounted CCP (Constant Current Power) microphone features MagMount™ technology, enabling easy, repeatable mounting—even in areas with limited accessibility.
Key Features:
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Rugged design built to withstand exposure to oil, water, dust, and high temperatures up to 125°C, delivering reliable performance in tough surroundings.
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Frequency response from 3.15 Hz to 20 kHz, suitable for detailed pressure measurements across a broad spectrum.
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Dynamic range from 19 dB(A) to 133 dB, allowing precise measurements from low to high sound pressure levels.
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Surface-mount with magnetic base using MagMount™ system, ensuring secure, repeatable mounting without additional tools.
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TEDS enabled, with integrated Transducer Electronic Data Sheet (TEDS) functionality for automatic sensor recognition and simplified setup.
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LED power-on indicator provides instant status confirmation.
Applications:
Ideal for automotive testing, especially in engine bays and near powertrain components where traditional microphones may not be practical. Its compact and robust form factor makes it the go-to solution for high-temperature, vibration-prone, or liquid-exposed measurement environments.
Whether you're optimizing NVH performance or conducting endurance tests under extreme conditions, the GRAS 147AX offers the reliability and precision needed for demanding applications.