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HEIDENHAIN式直線光柵尺用于長(zhǎng)度測(cè)量
點(diǎn)擊次數(shù)：1077 發(fā)布時(shí)間：2018-3-26
HEIDENHAIN式直線光柵尺用于長(zhǎng)度測(cè)量
海德漢光柵尺長(zhǎng)度測(cè)量
密封的線性編碼器可防塵，防碎屑和防濺液，是機(jī)床操作的理想選擇。
暴露的線性編碼器在掃描頭與刻度尺或刻度帶之間沒(méi)有機(jī)械接觸的情況下工作。這些編碼器的典型應(yīng)用領(lǐng)域包括線性??度量衡測(cè)量機(jī)，比較器和其他精密設(shè)備，以及生產(chǎn)和測(cè)量設(shè)備，例如半導(dǎo)體行業(yè)。
使用增量式直線光柵尺時(shí)，當(dāng)前位置是通過(guò)從一個(gè)基準(zhǔn)點(diǎn)開始并計(jì)數(shù)測(cè)量步驟，或者通過(guò)細(xì)分和計(jì)算信號(hào)周期來(lái)確定的。海德漢公司的增量式編碼器特征參考標(biāo)記，必須在接通后掃描以重新建立原點(diǎn)。使用距離編碼的參考標(biāo)記，此過(guò)程特別簡(jiǎn)單快捷。
式直線光柵尺不需要先前的移動(dòng)來(lái)提供當(dāng)前的位置值。編碼器通過(guò)EnDat接口或其他串行接口傳輸值。
HEIDENHAIN式直線光柵尺用于長(zhǎng)度測(cè)量
Length Measurement
Sealed linear encoders are protected from dust, chips and splash fluids and are ideal for operation on machine tools.
Exposed linear encoders operate with no mechanical contact between the scanning head and the scale or scale tape. Typical areas of application for these encoders include measuring machines, comparators and other precision devices in linear metrology, as well as production and measuring equipment, for example in the semiconductor industry.
With incremental linear encoders,the current position is determined by starting at a datum and counting measuring steps, or by subdividing and counting signal periods. Incremental encoders from HEIDENHAIN feature reference marks, which must be scanned after switch-on to reestablish the datum. This process is especially simple and fast with distance-coded reference marks.
Absolute linear encoders require no previous traverse to provide the current position value. The encoder transmits the absolute value through the EnDat interface or another serial interface. 
HEIDENHAIN式直線光柵尺用于長(zhǎng)度測(cè)量