Encoder for feeding back absolute position interval
An absolute position and encoder technology, which is applied in the direction of instruments, measuring devices, conversion sensor output, etc., can solve the problem of reduced accuracy
Inactive Publication Date: 2012-06-06
ROBOT TIME BEIJING TECH CO LTD
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However, the latter reduces the accuracy due to one more mechanical conversion
And it's not really straight-line coding
Method used
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[0010] Figure (2) shows the top and bottom of the prior art absolute position encoder, (16) ground wire, (13) signal line 1 output, (12) signal line 2 output, (15) signal line 3 output Terminal, (14) signal line 4 output terminals. Connect the ground wire to the low level of the circuit, (13) the output end of signal line 1, (12) the output end of signal line 2, (15) the output end of signal line 3, and the output end of (14) signal line 4 to connect to the signal detection , and fix the mechanism to be detected with the connection module (7). The encoder can be used in various fields, especially in toys, robots and other fields.
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An encoder for feeding back an absolute position interval is disclosed. Through using a connection module, the encoder uses a connector (7) to connect leads on three lines together so as to generate an only four bit binary coded signal which can be used to determine the absolute position of the connector. The encoder can only use three channels and four bit coding to determine ten absolute positions at most.
Description
Technical field: [0001] The invention relates to an encoding method and an encoder for an absolute position interval encoder. Background technique: [0002] This kind of encoder that feeds back the absolute position interval already exists, and the position encoder is a sensor that measures position and displacement. According to the measured value, it can be divided into linear encoder and shaft encoder. Measures the geometric quantities of length and angle, respectively. There are two types of encoders: incremental and absolute. Incremental encoders mostly use gratings as the core to convert displacement into electrical pulses. When displacement occurs, pulse sequences are generated. Accumulate the number of pulses with a reversible counter. Switch the addition and subtraction mode of the counter to represent the displacement in different directions. The cumulative result of the counter can be converted into displacement. The incremental encoder responds quickly, has...
Claims
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IPC IPC(8): G01D5/347
Inventor 曹伟潘存云马玉明
Owner ROBOT TIME BEIJING TECH CO LTD