Angular displacement sensor Notes！

Angular displacement sensor Notes

1, the sensor factory, disassembled user modifications (including torn trademark, processed on the shaft and the housing, loose screws, tighten the ring rotating position, etc.) products manufacturer is not responsible for warranty service.

2, the sensor lines in the access prohibited wrong terminations, pay special attention to the brush terminals (# 2), you can not access the input voltage.

3, the sensor can not pay attention to the multimeter resistance profile when energized, the voltage sensor to measure the current profile.

4, the sensor in the installation process was not to throw, so as not to damage the terminals.

5, the sensor voltage should be applied to ensure within the rated power range. (Note here that the rated power refers to the sensor at an ambient temperature of 70 ℃, the allowable power consumption when more than 70 ℃ should reduce power use).

6, the current through the sensor brushes recommended as 2ma, a maximum 10ma.

7, sensors and precision is the precision of the output characteristics of compliance, rather than the total resistance of the bias precision. Linearly independent linear accuracy of the sensor to calculate the open circuit test load shall prevail. Independent linear calculation method: using the current method of sensor industry typically require around zero voltage as end points to determine a theoretical electric wiring stroke, the two end points of the reference line. The maximum deviation (positive and negative maximum deviation of the absolute values ​​of the maximum deviation; n is the maximum deviation from zero or negative maximum deviation from zero) of the half, as the sensor linearity deviation.

8, the sensor taps with tap its width 4o ~ 5o, within the range of the output voltage is substantially constant tap, tap generally beginning or end as an output, the test, the calculation can not include taps in the linear theory of power stroke, otherwise, the test calculate the linear incorrect.

9, conductive plastic sensor temperature coefficient of resistance than the wire potentiometer, although large, when making use of a voltage divider, brush both sides of the resistance along affected by temperature changes, the partial pressure ratio unchanged, there is no effect on the linear sensor. (In terms of the linearity of the output resistance value for the amount of change occurs).

10, mounting structure and size of the double-sensor test calibration points are generally associated with the reference (the first joint) prevail. Synchronization accuracy generally refers to the percentage of a calibration point at the second joint output voltage difference between the total applied voltage (bivalent same total voltage applied), rather than the synchronization error for all test points. Calibration points usually selected starting point or midpoint (midpoint theoretical electrical angle of rotation). General synchronization accuracy of 1%, in accordance with linear precision level.

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