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GRAS麥克風(fēng)47AX技術(shù)資料GRAS北京授權(quán)代理

“1/2”47ax中共齊平安裝的麥克風(fēng)設(shè)置
頻率范圍：3.15赫茲到20千赫
動(dòng)態(tài)范圍：22分貝到150分貝（A）
靈敏度：12.5毫伏/ PA
“1/2”47ax中共齊平安裝的麥克風(fēng)設(shè)置
科技
規(guī)格
尺寸
訂購信息
科技
典型的應(yīng)用和使用
嵌入式安裝在密閉空間
嵌入式安裝在粘土模型
地面陣列測量
一般的噪聲測量
設(shè)計(jì)
一個(gè)高度（隔膜）只有8毫米，47ax是適合嵌入式安裝在地面陣列的應(yīng)用程序和其他應(yīng)用程序的尺寸約束板。
麥克風(fēng)是一個(gè)從22分貝到146分貝，從3.15赫茲到20千赫的頻率范圍動(dòng)態(tài)范圍預(yù)極化壓力麥克風(fēng)。內(nèi)置的前置放大器是一個(gè)低噪聲恒流電源（CCP）型，具有自動(dòng)識別內(nèi)置TEDS傳感器電路。設(shè)置有一個(gè)集成的1.5米電纜連接器BNC電纜點(diǎn)加一個(gè)適配器。
嵌入式安裝是理想，孔可以在結(jié)構(gòu)，如粘土模型，以適應(yīng)前通風(fēng)47ax。后排出的版本是可用的，這47ax–S1。
它是包含在鵝肝67ax地面陣列設(shè)置，其中有一個(gè)直徑400毫米的安裝板。
的47ax是基于IEC 61094標(biāo)準(zhǔn)的測量麥克風(fēng)。
校準(zhǔn)
出廠時(shí)，所有的節(jié)的麥克風(fēng)已在受控的實(shí)驗(yàn)室環(huán)境中使用校準(zhǔn)設(shè)備校準(zhǔn)。根據(jù)不同的使用環(huán)境、測量和內(nèi)部質(zhì)量控制程序，我們建議麥克風(fēng)校準(zhǔn)至少每年一次。
我們提供了兩種類型的校準(zhǔn)作為一個(gè)可選的售后服務(wù)：鵝肝醬可溯源校準(zhǔn)和校準(zhǔn)。
GRAS校準(zhǔn)是校準(zhǔn)由專業(yè)人員進(jìn)行控制的條件下，按照既定的程序和標(biāo)準(zhǔn)。這是所有鵝肝麥克風(fēng)進(jìn)行作為我們質(zhì)量保證的一個(gè)組成部分的嚴(yán)格校準(zhǔn)相同。
GRAS的校準(zhǔn)是由GRAS進(jìn)行認(rèn)可的校準(zhǔn)實(shí)驗(yàn)室，已與ISO 17025一致認(rèn)可的丹麥DANAK，認(rèn)可基金。
如果你想要一個(gè)新的麥克風(fēng)設(shè)置提供一個(gè)認(rèn)可的校準(zhǔn)在默認(rèn)出廠校準(zhǔn)代替，在訂貨時(shí)此。
學(xué)習(xí)更多GRAS/校準(zhǔn)。
質(zhì)量和保修

GRAS麥克風(fēng)集是從我們的證明標(biāo)準(zhǔn)的投資組合的成分，都是的材料和零部件的制造，品牌的選擇和處理，以確保終身的穩(wěn)定性和魯棒性。
所有的零件制造和組裝在丹麥工廠的技能和專門的運(yùn)營商在一個(gè)驗(yàn)證潔凈室環(huán)境。麥克風(fēng)的膜片，身體和*的保護(hù)網(wǎng)是由不銹鋼使麥克風(fēng)設(shè)置抗物理損傷以及激進(jìn)的空氣或氣體引起的腐蝕。
這，連同執(zhí)行鍍金麥克風(fēng)端子保證高度可靠的連接。得益于高質(zhì)量，我們對有缺陷的材料和工藝質(zhì)量保證5年。
服務(wù)
如果你錯(cuò)誤地?fù)p害GRAS麥克風(fēng)我們將在大多數(shù)情況下，可以交換在一個(gè)非常合理的成本和較短的周轉(zhuǎn)時(shí)間的隔膜。這不僅保護(hù)您的投資，也能滿足你的質(zhì)量保證部門，因?yàn)槟悴槐負(fù)?dān)心新的序列號等。

規(guī)格
GRAS am0069擋風(fēng)玻璃1/2“麥克風(fēng)
外直徑：90毫米
孔直徑：12毫米
材料：泡沫
說明
的am0069包含5個(gè)球形玻璃專門設(shè)計(jì)用于1/2“聲壓測量的自由場條件下的優(yōu)化設(shè)置麥克風(fēng)的情況下，例如風(fēng)從哪里來更多的和不可預(yù)知的方向。擋風(fēng)玻璃是把它盡可能的在話筒和前置放大器的安裝。
設(shè)計(jì)
當(dāng)麥克風(fēng)被放置在一個(gè)層流、湍流的產(chǎn)生導(dǎo)致不必要的壓力變化對隔膜反過來。通過使用擋風(fēng)玻璃這些壓力的變化移動(dòng)遠(yuǎn)離隔膜盡可能。
理論上支持“越大越好”的設(shè)計(jì)，但在實(shí)踐中，這是減少空氣速度之間的一種折衷，引起噪聲的實(shí)際尺寸和自。自噪聲抖動(dòng)噪聲的產(chǎn)生，當(dāng)雨開始圍繞麥克風(fēng)移動(dòng)。
GRAS的擋風(fēng)玻璃都是尺寸優(yōu)化和特殊，開孔泡沫結(jié)構(gòu)和每英寸的孔數(shù)二（PPI），是為了抵御潮濕的環(huán)境，同時(shí)不影響聲壓測量結(jié)果明顯。
頻率依賴性的衰減是如果雨淋濕的預(yù)期。因此，擋風(fēng)玻璃不打算作為麥克風(fēng)防雨。
選擇
如果長時(shí)間戶外監(jiān)測是非常必要的，我們建議你尋找鵝肝半*和*性戶外麥克風(fēng)解決方案：
GRAS 41ac-2雷莫戶外麥克風(fēng)與社區(qū)和機(jī)場噪聲遠(yuǎn)程
GRAS 41ac-3中國戶外麥克風(fēng)社區(qū)和機(jī)場噪聲
GRAS 41ac-4雷莫戶外麥克風(fēng)社區(qū)和機(jī)場噪聲（0 V型。）
如果減少湍流不足夠你的類型的測量，我們建議的強(qiáng)度測量技術(shù)，有效地抑制背景噪聲。鵝肝具有廣泛的2D，3D和寬的頻率強(qiáng)度探針支持中共和勒墨輸入模塊，看到鵝肝強(qiáng)度探討。
如果你需要在一個(gè)明確的層流氣流使聲壓的測量，例如在一個(gè)風(fēng)洞，我們建議你尋找鵝肝nosecones?；蛘邔ふ椅覀兊谋砻纨R平安裝的麥克風(fēng)麥克風(fēng)，我們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.
質(zhì)量和保修
對消耗品如電池、電纜和擋風(fēng)玻璃我們提供6個(gè)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