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GRAS測(cè)量傳聲器組合詳細(xì)介紹
閱讀：907 發(fā)布時(shí)間：2019-3-12東莞市艾科工業(yè)自動(dòng)化設(shè)備有限公司專業(yè)進(jìn)口現(xiàn)貨歐美進(jìn)口件，我公司在德國美國有自己的公司,，歐美元?dú)饧加凶?，直接廠家下單，一手貨源,，價(jià)格低,，質(zhì)量有保證，可提供報(bào)關(guān)單,，歡迎新老用戶前來詢價(jià)采購,，
GRAS測(cè)量傳聲器組已組合，以滿足我們用戶的典型測(cè)量需求,。獨(dú)立于您的測(cè)量系統(tǒng)和應(yīng)用程序,，您應(yīng)該能夠找到一套適合您的需要。麥克風(fēng)組可直接連接到所有專業(yè)測(cè)量系統(tǒng),，如圖所示,，它們可用于CCP和7針LEMO輸入。
如果您的測(cè)量平臺(tái)支持符合IEEE1451.4（TEDS）的智能傳感器,，您可以簡單地插入麥克風(fēng),，它們將用它們的特定屬性,、類型和校準(zhǔn)數(shù)據(jù)來標(biāo)識(shí)自己。多渠道用戶特別喜歡的功能,。
CCP設(shè)備使用高質(zhì)量同軸電纜,，而LEMO設(shè)備使用特殊的軟型多芯屏蔽電纜。如果要使用延長電纜,，應(yīng)考慮對(duì)高頻和動(dòng)態(tài)范圍的可能影響,。
GRAS所有話筒組件均作為一個(gè)單元交付，并進(jìn)行相應(yīng)校準(zhǔn),。成套設(shè)備交付時(shí)附有校準(zhǔn)圖表,，包括整套設(shè)備的靈敏度值和頻率響應(yīng)曲線。因此靈敏度值可以直接在系統(tǒng)設(shè)置中使用,。
為了經(jīng)常驗(yàn)證測(cè)量鏈,，需要一個(gè)聲源。GRAS為此提供了一個(gè)114分貝的聲音校準(zhǔn)器,。根據(jù)使用和您的內(nèi)部質(zhì)量控制要求,，我們建議至少每兩年重新校準(zhǔn)一次裝置。為了更準(zhǔn)確的驗(yàn)證,，我們建議使用*槍式擴(kuò)音器進(jìn)行校準(zhǔn),。GRAS提供114db和134db*槍式話筒。此外,，我們建議根據(jù)可靠的參考校準(zhǔn)聲源,。GRAS提供校準(zhǔn)服務(wù)，并建議每兩年進(jìn)行一次校準(zhǔn),。
選擇麥克風(fēng)設(shè)置或從麥克風(fēng)指南獲取指導(dǎo),。
Measurement microphone sets
The measurement microphone sets have been combined so they fulfil our users’ typical measurement needs. Independently of your measurement system and application you should be able to find a set that suits your needs. The microphone sets can be connected directly to all professional measurement systems and as indicated they are available for both CCP and 7-pin LEMO inputs.
If your measurement platform supports intelligent transducers according to IEEE 1451.4 (TEDS) you can simply plug in the microphones and they will identify themselves with their specific properties, types and calibration data. A feature especially appreciated by multi-channel users.
The CCP sets use high-quality coaxial cables, whereas the LEMO sets use a special, soft type of multicore shielded cable. If extended cables are to be used you should consider the possible influence on the upper frequency and dynamic ranges.
All microphone sets are delivered as a unit and are calibrated accordingly. The sets are delivered with calibration charts including sensitivity values and frequency response curves for the complete set. The sensitivity value can therefore be used directly in your system setup.
For frequent verification of the measurement chain a sound source will be required. GRAS supplies a 114 dB sound calibrator for this purpose. Depending on the use and your internal quality control requirements we recommend that the sets are recalibrated at least every second year. For a more accurate verification we recommend calibration with a pistonphone. GRAS supplies 114dB and 134dB pistonphones. Further, we recommend calibration of the sound sources against an extreme reliable reference. GRAS offers calibration services and recommends such calibration every second year.