GRAS Sound＆Vibration成立于1994年，由丹麥聲學Gunnar Rasmussen創立，是聲音和振動行業的全球。 GRAS為聲學測量精度和重復性至關重要的行業開發和制造的測量麥克風和相關設備。 這包括面向航空航天，汽車，聽力學，消費電子和其他高要求行業的客戶的應用和解決方案。GRAS的測量麥克風被開發用于支持研發，質量保證和生產的關鍵領域，因此必須進行最*的測試。 GRAS麥克風采用一系列“高加速壽命測試"，旨在實現我們客戶期望和信賴的高品質，耐用性和準確性。

主要產品：

GRAS 41ac-2雷莫戶外麥克風與社區和機場噪聲遠程

GRAS 41ac-3中國戶外麥克風社區和機場噪聲

GRAS 41ac-4雷莫戶外麥克風社區和機場噪聲（0 V型。）

GRAS 67TS Turbulence Screen Kit

GRAS AA0001 20 m LEMO 6-pin - LEMO 6-pin Cable for outdoor microphone

GRAS AA0002 10 m LEMO 6-pin - LEMO 6-pin Cable for outdoor microphone

GRAS AA0003 3 m LEMO 6-pin - LEMO 6-pin Cable for outdoor microphone

GRAS AA0004 50 m LEMO 6-pin - LEMO 6-pin Cable for outdoor microphone

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GRAS AA0015 100 m LEMO 6-pin - LEMO 6-pin Cable for outdoor microphone

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GRAS AA0016 200 m LEMO 6-pin - LEMO 6-pin Cable for outdoor microphone

GRAS AA0086-CL Customized Length LEMO 6-pin - LEMO 6-pin Cable for outdoor microphone

GRAS AB0002 Mains/line power supply

GRAS AB0003 Mains/line power supply

GRAS AB0006 Mains/line power supply

GRAS AC0001 Calibration Control Box for 41AM/CN

GRAS AE0003 Plug

GRAS AE1002 LEMO 7-pin panel connector

GRAS AB0005 Mains/line power supply

GRAS AB0006 Mains/line power supply

GRAS AC0001 Calibration Control Box for 41AM/CN

GRAS AE0003 Plug

GRAS AF0008 Adapter for 1/4" preamplifier and 1/2" microphone

GRAS AG0001 Adapter for 7-pin LEMO to B&K

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GRAS AG0002 CCP Input Adapter

GRAS AG0003 Adapter for CCP preamplifier to XLR

GRAS AF0008 Adapter for 1/4" preamplifier and 1/2" microphone

GRAS AL0012 1/2" Microphone Holder, Stainless Steel

GRAS AM0029 Pole adapter

GRAS AL0029 1/4" Microphone Holder, POM

GRAS AM0037 Transport protection cap

GRAS AM0038 Multi spanner/wrench

GRAS AM0052 Complete Windscreen for 41AM/CN

GRAS AM0033 Tripod adapter

GRAS AM0071 Windscreen for 1/4" Microphones

GRAS AM0069 Windscreen for 1/2" Microphones

GRAS AM0009 Windscreen for 41AM/CN

GRAS AM0363 Windscreen for 1" Microphones

GRAS AM0089 Lownoise Windscreen for 41AM/CN

GRAS AM0376 Windscreen for Intensity Probes

GRAS AM0364 Windscreen for Array Microphones

GRAS AM0378 Windscreen for 41AC

GRAS GR0010 Adapter for 1/4" preamplifier and 1/2" microphone

GRAS AM0071 Windscreen for 1/4" Microphones

GRAS AL0013 1/4" Microphone Holder, Stainless Steel

GRAS AL0008 1/2" Microphone Holder, POM

GRAS AL0028 7 mm Microphone Holder, POM

GRAS AL0003 1/4" & 1/2" Adjustable Microphone Holder, POM

GRAS KB0060 KEMAR Pinna for Types 45BA, 45BM, 43AG, 45BB and 45BC

GRAS AL0007 Clips for 1/4" intensity microphones

GRAS AL0004 Small light weight microphone tripod

GRAS GR0707 Spacer for Array

GRAS KB0065 KEMAR Pinna for Types 45BA, 45BM, 43AG, 45BB and 45BC

GRAS KB0061 KEMAR Pinna for Types 45BA, 45BM, 43AG, 45BB and 45BC

GRAS AK0096 Rack Kit

GRAS AL0011 Calibration Stand for IEC 60318-1 Ear Simulator

GRAS KB0069 Small Left KEMAR Pinna for Sound Quality, 55 Shore OO

GRAS AG0001 Adapter for 7-pin LEMO to B&K

GRAS AG0003 Adapter for CCP preamplifier to XLR

GRAS AG0002 CCP Input Adapter

GRAS AK0040 Standard 19" Rack-mounting System

GRAS AL0005 Swivel head

GRAS AL0006 Tripod

GRAS GR0625 End piece

GRAS KB0070 KEMAR Pinna for GRAS 45CA

GRAS KB0072 KEMAR Pinna for GRAS 45CA

GRAS GR0630 Connecting piece

GRAS KB1066 KEMAR Pinna for Types 45BA, 45BM and 43AG

GRAS KB1070 KEMAR Pinna for GRAS 45CA

GRAS KB1065 KEMAR Pinna for Types 45BA, 45BM and 43AG

GRAS KB1068 Small Right KEMAR Pinna for Sound Quality, 35 Shore OO

GRAS KB1091 KEMAR Pinna for Types 45BA, 45BM and 43AG

GRAS KB1069 Small Left KEMAR Pinna for Sound Quality, 35 Shore OO