HEIDENHAIN式直線光柵尺用于長度測量 
海德漢光柵尺長度測量
密封的線性編碼器可防塵，防碎屑和防濺液，是機床操作的理想選擇。
暴露的線性編碼器在掃描頭與刻度尺或刻度帶之間沒有機械接觸的情況下工作。這些編碼器的典型應用領(lǐng)域包括線性??度量衡測量機，比較器和其他精密設(shè)備，以及生產(chǎn)和測量設(shè)備，例如半導體行業(yè)。
使用增量式直線光柵尺時，當前位置是通過從一個基準點開始并計數(shù)測量步驟，或者通過細分和計算信號周期來確定的。海德漢公司的增量式編碼器特征參考標記，必須在接通后掃描以重新建立原點。使用距離編碼的參考標記，此過程特別簡單快捷。
式直線光柵尺不需要先前的移動來提供當前的位置值。編碼器通過EnDat接口或其他串行接口傳輸值。
HEIDENHAIN式直線光柵尺用于長度測量 

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度測量