GRAS麦克风47AX技术资料GRAS北京授权代理

“1/2”47ax中共齐平安装的麦克风设置
频率范围：3.15赫兹到20千赫
动态范围：22分贝到150分贝（A）
灵敏度：12.5毫伏/ PA
“1/2”47ax中共齐平安装的麦克风设置
科技
规格
尺寸
订购信息
科技
典型的应用和使用
嵌入式安装在密闭空间
嵌入式安装在粘土模型
地面阵列测量
一般的噪声测量
设计
一个高度（隔膜）只有8毫米，47ax是适合嵌入式安装在地面阵列的应用程序和其他应用程序的尺寸约束板。
麦克风是一个从22分贝到146分贝，从3.15赫兹到20千赫的频率范围动态范围预极化压力麦克风。内置的前置放大器是一个低噪声恒流电源（CCP）型，具有自动识别内置TEDS传感器电路。设置有一个集成的1.5米电缆连接器BNC电缆点加一个适配器。
嵌入式安装是理想，孔可以在结构，如粘土模型，以适应前通风47ax。后排出的版本是可用的，这47ax–S1。
它是包含在鹅肝67ax地面阵列设置，其中有一个直径400毫米的安装板。
的47ax是基于IEC 61094标准的测量麦克风。
校准
出厂时，所有的节的麦克风已在受控的实验室环境中使用校准设备校准。根据不同的使用环境、测量和内部质量控制程序，我们建议麦克风校准至少每年一次。
我们提供了两种类型的校准作为一个可选的售后服务：鹅肝酱可溯源校准和校准。
GRAS校准是校准由专业人员进行控制的条件下，按照既定的程序和标准。这是所有鹅肝麦克风进行作为我们质量保证的一个组成部分的严格校准相同。
GRAS的校准是由GRAS进行认可的校准实验室，已与ISO 17025一致认可的丹麦DANAK，认可基金。
如果你想要一个新的麦克风设置提供一个认可的校准在默认出厂校准代替，在订货时此。
学习更多GRAS/校准。
质量和保修

GRAS麦克风集是从我们的证明标准的投资组合的成分，都是的材料和零部件的制造，品牌的选择和处理，以确保终身的稳定性和鲁棒性。
所有的零件制造和组装在丹麦工厂的技能和专门的运营商在一个验证洁净室环境。麦克风的膜片，身体和*的保护网是由不锈钢使麦克风设置抗物理损伤以及激进的空气或气体引起的腐蚀。
这，连同执行镀金麦克风端子保证高度可靠的连接。得益于高质量，我们对有缺陷的材料和工艺质量保证5年。
服务
如果你错误地损害GRAS麦克风我们将在大多数情况下，可以交换在一个非常合理的成本和较短的周转时间的隔膜。这不仅保护您的投资，也能满足你的质量保证部门，因为你不必担心新的序列号等。

规格
GRAS am0069挡风玻璃1/2“麦克风
外直径：90毫米
孔直径：12毫米
材料：泡沫
说明
的am0069包含5个球形玻璃专门设计用于1/2“声压测量的自由场条件下的优化设置麦克风的情况下，例如风从哪里来更多的和不可预知的方向。挡风玻璃是把它尽可能的在话筒和前置放大器的安装。
设计
当麦克风被放置在一个层流、湍流的产生导致不必要的压力变化对隔膜反过来。通过使用挡风玻璃这些压力的变化移动远离隔膜尽可能。
理论上支持“越大越好”的设计，但在实践中，这是减少空气速度之间的一种折衷，引起噪声的实际尺寸和自。自噪声抖动噪声的产生，当雨开始围绕麦克风移动。
GRAS的挡风玻璃都是尺寸优化和特殊，开孔泡沫结构和每英寸的孔数二（PPI），是为了抵御潮湿的环境，同时不影响声压测量结果明显。
频率依赖性的衰减是如果雨淋湿的预期。因此，挡风玻璃不打算作为麦克风防雨。
选择
如果长时间户外监测是非常必要的，我们建议你寻找鹅肝半*和*性户外麦克风解决方案：
GRAS 41ac-2雷莫户外麦克风与社区和机场噪声远程
GRAS 41ac-3中国户外麦克风社区和机场噪声
GRAS 41ac-4雷莫户外麦克风社区和机场噪声（0 V型。）
如果减少湍流不足够你的类型的测量，我们建议的强度测量技术，有效地抑制背景噪声。鹅肝具有广泛的2D，3D和宽的频率强度探针支持中共和勒墨输入模块，看到鹅肝强度探讨。
如果你需要在一个明确的层流气流使声压的测量，例如在一个风洞，我们建议你寻找鹅肝nosecones。或者寻找我们的表面齐平安装的麦克风麦克风，我们的新概念或湍流的屏幕。
Design
When a microphone is placed in a laminar flow, turbulence is created which in turn results in unwanted pressure variations on the diaphragm. By using a windscreen these pressure variations are moved as far away from the diaphragm as possible.
Theoretically this supports a “the-bigger-the-better design”, but in practice it is a compromise between air speed reduction, practical size and self-induced noise. Self-induced noise is wobble-noise which is generated, when the windscreen starts moving around the microphone.
The GRAS windscreens are all size optimized and their special, open-cell foam structure and number of pores per inch2(ppi), are designed to resist a humid environment and at the same time not influence the sound pressure measurement result significantly.
Frequency dependent attenuation is to be expected if the windscreen gets wet. Therefore windscreens are not intended as rain protection of the microphone.
Alternatives
If longer duration of outdoor monitoring is required, we suggest that you look for the GRAS semi-permanent and permanent outdoor microphone solutions:
GRAS 41AC-2 LEMO Outdoor Microphone with RemoteCheck for Community and Airport Noise
GRAS 41AC-3 CCP Outdoor Microphone for Community & Airport Noise 
GRAS 41AC-4 LEMO Outdoor Microphone for Community and Airport Noise (0 V pol.)
If the turbulence reduction is not sufficient for your type of measurement, we suggest the intensity measurement technique that suppresses background noise effectively. GRAS has a wide range of 2D, 3D and wide-frequency intensity probes supporting both CCP and LEMO input modules, see GRAS Intensity Probes .
If you need to make sound pressure measurements in a well-defined laminar airflow, e.g. in a wind-tunnel, we suggest that you look for GRAS nosecones. Alternatively look for our surface microphones, our new flush-mounted microphone concept or our turbulence screen.
Quality and Warranty
On consumables like batteries, cables and windscreens we offer a 6 month warranty.
质量和保修
对消耗品如电池、电缆和挡风玻璃我们提供6个月保修。
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
GRAS KB1071 KEMAR Pinna for GRAS 45CA
GRAS KB1060 KEMAR Pinna for Types 45BA, 45BM and 43AG
GRAS KB1061 KEMAR Pinna for Types 45BA, 45BM and 43AG
GRAS KB1090 KEMAR Pinna for Types 45BA, 45BM and 43AG
GRAS OP0023 Kit for Sensitivity Calibration of Flush-mount Microphone Sets
GRAS KB0111 Ear-mould simulator
GRAS KB5001 Left Anthropometric Pinna 35 Shore OO
GRAS KB5011 Left Anthropometric Pinna for 45CA, 35 Shore OO
GRAS OP0025 Kit for Sensitivity Calibration of 1/4" Surface Microphones
GRAS PA0018 Cable Drum
GRAS RA0003 Adapter for 1/2" microphone and 1/4" preamplifier
GRAS RA0001 Right-angled (90o) Adapter for 1/2" microphone and 1/4" preamplifier
GRAS PR0002 Array Module
GRAS PR0001 Array Module with Central Cable Connection
GRAS PR0001-2 Array Module with Angled Central Cable Connection
GRAS RA0007 Straight adapter for 1/4" preamplifiers
GRAS RA0006 Right-angled (90o) Adapter for 1/4" Microphone and 1/4" Preamplifier
GRAS KB5000 Right Anthropometric Pinna 35 Shore OO
GRAS RA0009 Adapter for Pistonphone calibration
GRAS KB5010 Right Anthropometric Pinna for 45CA, 35 Shore OO
GRAS RA0011 Gooseneck
GRAS KB0077 KEMAR Pinna for GRAS 45CB
GRAS KB0091 KEMAR Pinna for Types 45BA, 45BM and 43AG
GRAS KB0071 KEMAR Pinna for GRAS 45CA
GRAS KB0072 KEMAR Pinna for GRAS 45CA
GRAS KB0073 KEMAR Pinna for GRAS 45CA
GRAS KB0078 KEMAR Pinna for GRAS 45CB
GRAS KB0090 KEMAR Pinna for Types 45BA, 45BM and 43AG
GRAS RA0016 20 dB Attenuator for externally polarized 1/2" microphones
GRAS KB0110 Ear-mould simulator
GRAS RA0018 20 dB Attenuator for prepolarized 1/2" microphones
GRAS RA0019 Adapter for 1/4" microphone and 1/2" preamplifier
GRAS RA0023 Coupler for 1" microphones
GRAS RA0060 Calibration Coupler for 1/2” Nosecone
GRAS RA0062-S1 50 pF Preamplifier-input Adapter for 1/2" preamplifiers
GRAS RA0048 Pistonphone coupler
GRAS RA0049 Microphone adapter for pistonphones
GRAS RA0042 Coupler for two-port Calibration
GRAS RA0067 Transmitter Adapter for 1/2" microphones
GRAS RA0072 Octopus coupler
GRAS RA0073 Adapter for 1" microphone and 1/2" preamplifier
GRAS RA0080 6pF Preamplifier-input adapter for 1/4" microphones
GRAS RA0077 NBS 9-A Coupler adapter for 1/2” microphone
GRAS RA0082 Adapter for 1/8" microphone and 1/4" preamplifier (long version)
GRAS RA0081 Special tool for gripping 1/2” microphones
GRAS RA0070 Test Base for Ear Simulators, Basic
GRAS RA0083 BNC to 7-pin LEMO Adapter
GRAS RA0087 Special key
GRAS RA0085 Insulated coupling for artificial ear
GRAS RA0063 Adapter for 1/8" microphone and 1/4" preamplifier
GRAS RA0092 Rain-protection Cap for array microphones
GRAS RA0093-S1 1/2" Adjustable Microphone Holder, Stainless Steel
GRAS RA0095 Dehumidifier for 1” microphones
GRAS RA0094 3-Click Holder for Array Module, Stainless Steel
GRAS RA0086 Transmitter Adapter for 1/4" microphones
GRAS RA0090 Pistonphone Coupler
GRAS RA0062 20 pF Preamplifier-input Adapter for 1/2" preamplifiers
GRAS RA0041 Adapter for Pistonphone calibration
GRAS RA0022 1/4" NoseconeGRAS RA0024 Coupler for two-port Calibration
GRAS RA0088 In Ear Adapter
GRAS RA0058 1/2'' to 1'' Microphone Adapter
GRAS RA0107 Spacers
GRAS RA0017 Adapter for 1" microphone and 1/2" preamplifier
GRAS RA0018 20 dB Attenuator for prepolarized 1/2" microphones
GRAS RA0020 1/2" Nosecone
GRAS RA0020-A 1/2" Nosecone, lightweight
GRAS RA0019 Adapter for 1/4" microphone and 1/2" preamplifier
GRAS RA0096 1/4" 5-Click Microphone Holder, Stainless Steel
GRAS RA0052 Test Jig
GRAS RA0114 Adapter for 1/4” button type hearing aids
GRAS RA0115 Moulding adapter for ITE hearing aids
GRAS RA0132 Dehumidifier for 1/2” microphones
GRAS RA0172 Pinna Holder Kit for GRAS 45CA
GRAS RA0143 Ear Simulator Holder Kit for KEMAR
GRAS RA0157 1/2" Calibration Adapter for KEMAR Pinna
GRAS RA0168 Digital Barometer
GRAS RA0185 Holder for Array microphone in PR0002 Array module
GRAS RA0127 Rain-protection cap for 1/4” microphones
GRAS RA0131 Rain-protection cap for 1/2” microphones
GRAS RA0125 Adapter for microdot input to a 1/2” preamplifier
GRAS RA0176 1/2" to 1" Adapter for RA0039
GRAS RA0173 1/8” Nosecone
GRAS RA0202 Pistonphone Calibration Adapter for 1/4" Surface Microphone Sets
GRAS RA0245 Holder for 1/4" microphone set in PR0002 Array module
GRAS RA0216 Field verification adapter for 67AX/AD
GRAS RA0501 Mounting Adapter for 1/2” Flush-mount Microphone Set
GRAS RA0251 KEMAR Retrofit kit for test of Binaural Hearing Aid
GRAS RA0190 Right-angled (90o) Adapter for 1/2" Microphone and 1/2" Preamplifier
GRAS RA0140 Dummy 1” microphone
GRAS RA0122 Random-incidence corrector
GRAS RA0302 Removal Tool for 1/2" and 1/4" Flush-mount Microphones
GRAS RA0311 KEMAR Retrofit Kit for Anthropometric Pinna
GRAS RA0118 Attenuator for 1/4" microphones
GRAS RA0114 Adapter for 1/4” button type hearing aids
GRAS RA0115 Moulding adapter for ITE hearing aids
GRAS RA0116 Adapter for 1/2" microphone
GRAS RA0117 Coupler adapter for 1/2” to 1/4” microphone
GRAS RA0119 Pistonphone Adapter
GRAS RA0196 Retrofit High-tension Spring Kit for RA0052
GRAS RA0503 Mounting Adapter for 1/8” Flush-mount Microphone Set
GRAS SK0017 Tripod thread insert
GRAS SK0057 Tripod conversion screw
GRAS 46BG-FV 1/4" CCP Pressure Front Vented Microphone Set, High Pressure
GRAS 46BL 1/4" CCP Pressure Standard Microphone Set, High Sensitivity
GRAS 46BD-FV 1/4" CCP Pressure Standard Microphone Set, Front Vented
GRAS 46BE 1/4" CCP Free-field Standard Microphone Set
GRAS 46DD-FV 1/8'' CCP Pressure Standard Microphone Set, Front Vented
GRAS 46BL-HT 1/4" CCP Pressure High Temperature Microphone Set, High Sensitivity
GRAS 46BG 1/4" CCP Pressure Standard Microphone Set, High Pressure
GRAS 46DE 1/8'' CCP Pressure Standard Microphone Set
GRAS 46BD-S1 1/4" CCP Pressure Standard Microphone Set with SMB connector
GRAS 46AR 1/2'' LEMO Random Incidence Standard Microphone Set
GRAS 46AC 1/2'' LEMO Free-field Standard Microphone Set, Wide Frequency
GRAS 46DP-1 1/8" LEMO Pressure Standard Microphone Set
GRAS 46AG 1/2'' LEMO Pressure Standard Microphone Set
GRAS 46BH-1 1/4" LEMO Pressure Standard Microphone Set, High pressure
GRAS 46DD 1/8'' CCP Pressure Standard Microphone Set
GRAS 46AZ 1/2'' CCP Free-field Standard Microphone Set, Low Frequency
GRAS 46AP 1/2" LEMO Pressure Standard Microphone Set, High Sensitivity
GRAS 46AO 1/2'' CCP Pressure Standard Microphone Set
GRAS 146AE 1/2'' CCP Free-field Rugged Microphone Set
GRAS 46AE 1/2'' CCP Free-field Standard Microphone Set
GRAS 46AD 1/2" CCP Pressure Standard Microphone Set, High Sensitivity
GRAS 46AF 1/2'' LEMO Free-field Standard Microphone Set
GRAS 46AM 1/2'' CCP Free-field Standard Microphone Set, Wide Frequency
GRAS 46BD 1/4" CCP Pressure Standard Microphone Set
GRAS 46AN 1/2'' LEMO Free-field Standard Microphone Set, Low Frequency
GRAS 46BP-1 1/4" LEMO Pressure Standard Microphone Set
GRAS 46BF-1 1/4" LEMO Free-field Standard Microphone Set
GRAS 40AM 1/2" Prepolarized Free-Field Microphone, Wide Frequency
GRAS 40AU-1 1/2" Ext. Polarized Reference Pressure Microphone
GRAS 40BD-FV 1/4" Prepolarized Pressure Microphone, Front Vented
GRAS 40BD 1/4" Prepolarized Pressure Microphone
GRAS 40BE 1/4" Prepolarized Free-Field Microphone
GRAS 40BH 1/4" Ext. Polarized Pressure Microphone, High Pressure
GRAS 40BE-FV 1/4" Prepolarized Free-Field Microphone, Front Vented
GRAS 40BF 1/4" Ext. Polarized Free-field Microphone
GRAS 40AP-FV 1/2" Ext. Polarized Pressure Microphone, High Sensitivity, Front Vented
GRAS 40BP-FV 1/4" Ext. Polarized Pressure Microphone, Front Vented
GRAS 40BP 1/4" Ext. Polarized Pressure Microphone
GRAS 40DD 1/8" Prepolarized Pressure Microphone
GRAS 40AZ 1/2" Prepolarized Free-field Microphone, Low Frequency
GRAS 40AR 1/2" Ext. Polarized Random Incidence Microphone
GRAS 40AQ 1/2" Prepolarized Random Incidence Microphone
GRAS 40AO-FV 1/2" Prepolarized Pressure Microphone, Front Vented
GRAS 40AG 1/2" Ext. Polarized Pressure Microphone
GRAS 40AO 1/2" Prepolarized Pressure Microphone
GRAS 40AC 1/2" Ext. Polarized Free-field Microphone, Wide Frequency
GRAS 40AD 1/2" Prepolarized Pressure Microphone, High Sensitivity
GRAS 40AE 1/2" Prepolarized Free-Field Microphone
GRAS 40AF 1/2" Ext. Polarized Free-field Microphone
GRAS 40AP 1/2" Ext. Polarized Pressure Microphone, High Sensitivity
GRAS 40AN 1/2" Ext. Polarized Free-field Microphone, Low Frequency
GRAS 40DP 1/8" Ext. Polarized Pressure Microphone
GRAS 40EN 1" Ext. Polarized Pressure Microphone
GRAS 40EU 1" Ext. Polarized Reference Pressure Microphone
GRAS 26AA 1/4" Preamplifier with Integrated Cable for Intensity Probes
GRAS 26CA-HT 1/2'' CCP High Temperature Preamplifier with BNC Connector
GRAS 26CI 1/2'' CCP Preamplifier with BNC Connector, Low Frequency
GRAS 26CC 1/4" CCP Standard Preamplifier with SMB Connector
GRAS 26CK 1/2” CCP Standard Preamplifier with Microdot Connector, Very Short
GRAS 26CF 1/2'' CCP Preamplifier with BNC Connector, Gain and Filters
GRAS 26CA 1/2'' CCP Standard Preamplifier with BNC Connector
GRAS 26CB-HT 1/4" CCP Standard Preamplifier with Microdot Connector
GRAS 26CB 1/4" CCP Standard Preamplifier with Microdot Connector
GRAS 26AS 1/4" Standard Preamplifier with 3 m Integrated Cable, Very Short
GRAS 26AM 1/2'' Standard Preamplifier with 3 m integrated cable
GRAS 26AL 1/4" SysCheck Preamplifier with 3 m integrated cable
GRAS 26AK-S1 1/2'' Preamplifier with Integrated Connector, Low Frequency
GRAS 26AB 1/4''-1/2'' Universal Preamplifier with Integrated Connector
GRAS 26AC-1 1/4" Standard Preamplifier with Integrated Miniconnector
GRAS 26AH 1/2'' SysCheck Preamplifier with 3 m integrated cable
GRAS 26AI 1/2'' Preamplifier with Integrated Connector, Low Frequency
GRAS 26AJ 1/2'' SysCheck Preamplifier with integrated connector
GRAS 26AK 1/2'' Standard Preamplifier with Integrated Connector
GRAS 26AR 1/4" Standard Preamplifier with Integrated Mini-connector
GRAS 26CS 1/4" CCP GRAS 43BA-2 1/4" 0.4cc CCP High Frequency Coupler Kit
Standard Preamplifier with Microdot Connector, Very Short
GRAS 26HG 1/4" Preamplifier with 3 m Integrated
GRAS 43BA-3 1/4" 0.4cc CCP High Frequency Coupler Kit, High Sensitivity
GRAS 43BB Low-noise Ear Simulator System
GRAS 43AI CCP Ear Simulator for Production Testing Based on ITU-T Rec. P57 Type 3.2 High-leak
GRAS 43AH CCP Ear Simulator for Production Testing Based on ITU-T Rec. P57 Type 3.2 Low-leak
GRAS 43AF-S1 1'' 6cc Coupler Kit According to IEC 60318-3 with 26AB Preamplifier
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GRAS 43AG Ear & Cheek Simulator
GRAS 43AF 1'' 6cc Coupler Kit According to IEC 60318-3
GRAS 43AA Ear Simulator Kit According to IEC 60318-1 & -2
GRAS 43AA-S2 CCP Ear Simulator Kit According to IEC 60318-1 & -2
GRAS 43AB 1/2'' 2cc Coupler Kit According to IEC 60318-5
GRAS 43AC Ear Simulator Kit According to IEC 60318-4
GRAS 43AC-S1 CCP Ear Simulator Kit According to IEC 60318-4
GRAS 43AD Ear Simulator Kit According to ITU-T Rec. P57 Type 1
GRAS 43AE Ear Simulator Kit According to ITU-T Rec. P57 Type 3.2
GRAS 43BA-1 1/4" 0.4cc High Frequency Coupler Kit
GRAS 43BB-1 Low-noise Ear Simulator System
GRAS 40PH CCP Free-field Array Microphone
GRAS 40PK CCP Free-field QC Microphone, ShortGRAS 40PK CCP Free-field QC Microphone, Short
GRAS 40LA 1/4" CCP Precision Surface Microphone, High Pressure
GRAS 40PP-S1 CCP Free-field QC Microphone, High Pressure
GRAS 40PS-1 CCP Surface Microphone
GRAS 40PL CCP Free-field Array Microphone, High Pressure
GRAS 40HT 1/2'' Lownoise Microphone System for Confined Spaces
GRAS 40SC CCP Probe Microphone
GRAS 40PP CCP Free-field QC Microphone
GRAS 40LS 1/4" CCP Precision Surface Microphone
GRAS 41AC-3 CCP Outdoor Microphone for Community & Airport Noise
GRAS 40PL-1 Short CCP Free-field Array Microphone, High Pressure
GRAS 46AZ 1/2'' CCP Free-field Standard Microphone Set, Low Frequency
GRAS 47AC 1/2" CCP Infra-Sound Microphone Set
GRAS 41AM Permanent Outdoor Microphone System for airport noise
GRAS 47AX 1/2'' CCP Flush-mount Microphone Set
GRAS 50AI-B 1/2" LEMO Intensity Probe
GRAS 50AI-C 1/2" LEMO Intensity Probe
GRAS 50AI-C 1/2" LEMO Intensity Probe
GRAS 47DX 1/8” CCP Flush-mount Microphone Set
GRAS 47AD 1/2'' CCP Flush-mount Microphone Set, High Sensitivity
GRAS 50AI-D 1/2" LEMO Intensity Probe
GRAS 40BI 1/4" Ext. Polarized Intensity Microphone Kit
GRAS 40SA Probe Microphone
GRAS 41AC-4 LEMO Outdoor Microphone for Community and Airport Noise (0 V pol.)
GRAS 40HH 1/2'' Lownoise Microphone System
GRAS 40GI 1/2" Prepolarized Intensity Microphone Pair
GRAS 43BB-1 Low-noise Ear Simulator System
GRAS 40AI 1/2" Ext. Polarized Intensity Microphone Pair
GRAS 40AK 1/2" Ext. Polarized Intensity Microphone Kit
GRAS 40AK 1/2" Ext. Polarized Intensity Microphone Kit
GRAS 40AN 1/2" Ext. Polarized Free-field Microphone, Low Frequency
GRAS 40AZ 1/2" Prepolarized Free-field Microphone, Low Frequency
GRAS 40HF 1'' Lownoise Microphone System
GRAS 50AI-L 1/2" CCP Intensity Probe
GRAS 40GK 1/2" Prepolarized Intensity Microphone Kit
GRAS 50AI-LP 1/2" CCP Rugged Intensity Probe