GRAS 48LA UTP

Product catalog summary

Introduction
The GRAS 48LA is an Ultra-Thin Precision (UTP) high-pressure surface microphone designed for aeroacoustic testing. It combines a 1/4" condenser microphone with a compact form factor, making it the world's smallest measurement microphone. The microphone is 1 mm high, includes a built-in preamplifier, and features a Microdot male connector with a 3-meter cable.

Specifications

Frequency Range: 20 Hz to 20 kHz (±1 dB), 16 Hz to 31.5 kHz (±3 dB)
Dynamic Range: 64 dB(A) to 184 dB
Sensitivity: 0.12 mV/Pa (±2 dB)
Output Impedance: <50 Ω
Operating Temperature: -20 to 85 °C (-4 to 185 °F)
Connector Type: Microdot 10/32

Applications
The 48LA is ideal for high-level surface pressure measurements on planar and curved surfaces, particularly in boundary layers and turbulence. Typical uses include wind-induced noise measurement on vehicles, wind-tunnel testing, and in-flight testing of airplanes.

Mounting and Calibration
The microphone can be mounted using the RA4810 Hard Fairing with a click mount and adhesive pad. For field sensitivity verification, the RA4800 Adapter is available. Calibration accessories include the RA4801 Adapter for sensitivity calibration and the RA4802 Actuator for frequency calibration.

Quality and Warranty
GRAS microphones are manufactured with high-quality materials ensuring stability and robustness. The 48LA comes with a 2-year warranty covering defects in materials and workmanship. Cables and connectors have a 6-month warranty.

Service and Support
GRAS offers an exchange service for damaged microphones at a reasonable cost and short turnaround time. The company is committed to continuous product improvement.

Ordering Information
Included with the microphone are a 3-meter cable, RA4810 Hard Fairing, and a Microdot Female to BNC Male Adapter. Optional accessories include various adapters and mounting pads.

About GRAS Sound & Vibration
GRAS is a leader in the sound and vibration industry, providing high-quality measurement microphones for aerospace, automotive, audiology, and consumer electronics sectors. The company has subsidiaries and distributors in over 40 countries.

Catalog excerpts

Freq range: 20 Hz to 20 kHz (±1 dB) 16 Hz to 31.5 kHz (±3 dB) Dyn range: 64 dB(A) to 184 dB Sensitivity: 0.12 mV/Pa (±2 dB) Use: For aeroacoustic measurements 48LA is an Ultra-Thin Precision (UTP) surface microphone for aeroacoustic testing. It is a low-profile 1/4" CCP high-pressure condenser microphone. The microphone is only 1 mm high and can, therefore, be mounted in air-flow without disturbing the sound field. GRAS Sound & Vibration Skovlytoften 33, 2840 Holte, Denmark www.grasacoustics.com GRAS Sound & Vibration

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GRAS 48LA UTP Microphone, High Pressure Introduction 48LA is an Ultra-Thin Precision (UTP) high-pressure surface microphone for aeroacoustic testing. It is a revolutionary new design that has made it possible to combine a 1/4" condenser microphone with a form factor that makes it the world's smallest measurement microphone. The height of the microphone is 1 mm. It has a built-in preamplifier. The integrated cable connector is Microdot male. The total cable length is 3 meters. Typical applications and use 48LA is for high-level surface pressure measurements on planar and curved surfaces. Because...

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GRAS 48LA UTP Microphone, High Pressure Cable and connectors are covered by a 6 months warranty period. Service Should you by mistake damage or destroy your microphone, we offer an exchange service at a reasonable cost and short turn-around time. GRAS Sound & Vibration continually strives to improve the quality of our products for our customers. Therefore, the specifications and accessories are subject to change. GRAS Sound & Vibration

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GRAS 48LA UTP Microphone, High Pressure GRAS Sound & Vibration

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GRAS 48LA UTP Microphone, High Pressure The frequency response is within ±3 dB up to 31.5 kHz GRAS Sound & Vibration

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GRAS 48LA UTP Microphone, High Pressure Sound & Vibration

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GRAS 48LA UTP Microphone, High Pressure Included items Optional items GRAS Sound & Vibration

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HEAD OFFICE, DENMARK GRAS SOUND & VIBRATION Skovlytoften 33 2840 Holte Denmark Tel: +45 4566 4046 www.grasacoustics.com [email protected] USA GRAS SOUND & VIBRATION 5750 S.W. Arctic Drive Beaverton, OR 97005 Tel: 503-627-0832 Toll Free: 800-231-7350 www.grasacoustics.com [email protected] CHINA GRAS SOUND & VIBRATION Room 303, Building T6 Hongqiaohui, 990, Shenchang Road Minhang District, Shanghai China. 201106 Tel: +86 21 64203370 www.gras.com.cn [email protected] Sound & Vibration ABOUT GRAS SOUND & VIBRATION GRAS is a worldwide leader in the sound and vibration industry....

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GRAS 48LA UTP

GRAS 48LA UTP

Catalog excerpts

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