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ABSOLUTE POSITION TRANSDUCER HAVING NON-BINARY CODE TRUCK TYPE SCALE AND ABSOLUTE POSITION DETERMINING METHOD
ABSOLUTE POSITION TRANSDUCER HAVING NON-BINARY CODE TRUCK TYPE SCALE AND ABSOLUTE POSITION DETERMINING METHOD
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机译:具有非二进制码卡车式比例尺的绝对位置传感器和绝对位置确定方法
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摘要
PROBLEM TO BE SOLVED: To obtain an absolute position transducer corresponding to kinds of extensive uses including a use requested a very long measuring range and a low electric power use. ;SOLUTION: An absolute position transducer 100 comprises a reading head 102 and a scale member 104, where the head 102 and scale member 104 are movable each other along a measurement axis 106. The transducer 100 also includes a dense-wavelength transducer 210 and a code truck transducer 230. The code truck transducer 230 creates an analog rough-wavelength by computing a phase difference between a phase angle of the dense-wavelength transducer 210 and a dense-wavelength output of the code transducer 230. Also, it creates a non-binary code.;COPYRIGHT: (C)2000,JPO
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