1. Technical indicators of activity: for an instrument, generally the higher the activity, the better, because the more active, the easier it is to feel the change of acceleration in the surrounding environment, the acceleration change is large, and naturally, the change of output voltage also becomes larger accordingly, so that the measurement is easier and more convenient, and the measured data will be more accurate.
2. Zero-point temperature drift: the change of zero-point equilibrium caused by the change of ambient temperature. Generally, it is expressed as the percentage of the zero equilibrium change caused by the change of temperature to the rated output for every 10°C change in temperature, that is, the drift of the input caused by the temperature change when the sensor is not pressurized.
3. Technical indicators in terms of bandwidth: bandwidth refers to the effective frequency band that the sensor can measure, for example, a sensor with hundreds of HZ bandwidth can measure vibration, and a sensor with 50 HZ bandwidth can effectively measure the inclination.
4. Technical indicators of output methods: digital output and analog output. The digital sensor inputs digital signals to the external surface, such as quantity, component, etc.; Analog sensors input analog signals such as voltage and current to the surface.
5. Technical indicators in terms of range: the range required to measure the movement of different things is different, and it should be measured according to the actual situation.
6. Ultimate overload: the maximum load that the sensor can accept without causing it to lose its working ability. This means that when the job exceeds this value, the sensor will be permanently damaged.
7. Sensor gain: It is the original signal output magnification of the sensor.
8. Nominal resistance: the resistance value indicated on the potentiometer.
9. Allowable error: the percentage deviation of the difference between the nominal resistance value and the actual resistance value and the ratio of the nominal resistance value, which indicates the accuracy of the potentiometer. The allowable error is generally within ±20% to meet the requirements, because the general displacement sensor is used by the method of partial voltage, the size of the detailed resistance has no effect on the data collection of the sensor.
10. Linear accuracy: linear error. The smaller this parameter, the better. Lifespan: Conductive plastic displacement sensors are more than 2 million times.
11. Repeatability: The smaller this parameter, the better.
12. Resolution: the minimum displacement value that can be fed back by the displacement sensor. The smaller this parameter, the better. Conductive plastic displacement sensors have an infinitesimal resolution.
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