The displacement sensor is a detection device that can sense the measured information, and can transform the information sensed by the detection into electrical signals or other desired forms of information output in accordance with certain laws, so as to satisfy the transmission, processing and storage of information. , display, record and control requirements. It is the first link to achieve automatic detection and automatic control.

For the displacement sensor parameter index, there are the following main points:

1, the technical indicators of sensitivity: For an instrument, generally the higher the sensitivity the better, because the more sensitive, the acceleration of the surrounding environment changes the easier to feel, the acceleration changes, very naturally, The change in the output voltage is also correspondingly larger, so that the measurement is easier and more convenient, and the measured data is also more accurate.

2. Zero temperature drift: Zero balance changes caused by changes in ambient temperature. Generally, the change of the zero balance caused by the temperature change of 10° C. is expressed as a percentage of the rated output, that is, the drift caused by the temperature change when the sensor is not pressed.

3. Technical indicators of bandwidth: Bandwidth refers to the effective frequency band that the sensor can measure. For example, if one sensor has hundreds of HZ bandwidths, vibration can be measured. A sensor with 50 HZ bandwidth can effectively measure inclination. Now.

4, the output of the technical indicators: digital output and analog output in two ways. Digital sensor input to the instrument is a digital signal, such as the number, weight, etc.; analog sensor input to the instrument is an analog signal, such as voltage, current and so on.

5. Technical indicators in range: The range required to measure the movement of different things is not the same, and should be measured according to the actual situation.

6. Limit overload: The maximum load that the sensor can withstand without losing its ability to work. This means that when the work exceeds this value, the sensor will be permanently damaged.

7, sensor gain: the sensor's original signal output magnification.

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