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GRAS測量傳聲器組合詳細介紹
閱讀：969 發布時間：2019-3-12東莞市艾科工業自動化設備有限公司專業進口現貨歐美進口件，我公司在德國美國有自己的公司，歐美元氣件都有做，直接廠家下單，一手貨源，價格低，質量有保證，可提供報關單，歡迎新老用戶前來詢價采購，
GRAS測量傳聲器組已組合，以滿足我們用戶的典型測量需求。獨立于您的測量系統和應用程序，您應該能夠找到一套適合您的需要。麥克風組可直接連接到所有專業測量系統，如圖所示，它們可用于CCP和7針LEMO輸入。
如果您的測量平臺支持符合IEEE1451.4（TEDS）的智能傳感器，您可以簡單地插入麥克風，它們將用它們的特定屬性、類型和校準數據來標識自己。多渠道用戶特別喜歡的功能。
CCP設備使用高質量同軸電纜，而LEMO設備使用特殊的軟型多芯屏蔽電纜。如果要使用延長電纜，應考慮對高頻和動態范圍的可能影響。
GRAS所有話筒組件均作為一個單元交付，并進行相應校準。成套設備交付時附有校準圖表，包括整套設備的靈敏度值和頻率響應曲線。因此靈敏度值可以直接在系統設置中使用。
為了經常驗證測量鏈，需要一個聲源。GRAS為此提供了一個114分貝的聲音校準器。根據使用和您的內部質量控制要求，我們建議至少每兩年重新校準一次裝置。為了更準確的驗證，我們建議使用*槍式擴音器進行校準。GRAS提供114db和134db*槍式話筒。此外，我們建議根據可靠的參考校準聲源。GRAS提供校準服務，并建議每兩年進行一次校準。
選擇麥克風設置或從麥克風指南獲取指導。
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.