The use of vision sensors in practical operation is relatively common, and may be useful for the needs of various situations in different industries and fields. No matter how good the instrument is, there is a quality of the instrument itself, and in order to reduce the deviation in the measurement process, the user needs to choose a good quality sensor. How do you judge the quality of a sensor that is good or bad? Here's how to do it:
1. The choice of acuity
In the linear field of the Beacon Sensor, it is expected that the higher the sensitivity of the Beacon Sensor, the better. Because as long as the sensitivity is high, the value of the output code corresponding to the measured change is only Chinese New Year's Eve, which is conducive to the disposal of the code. However, it should be noted that the sensitivity of the sensor is high, and the external noise related to the measurement is also easy to mix, and it will also be reduced by the shrinking system, which will affect the measurement accuracy. Therefore, it is implored that the P+F sensor itself should have a high signal-to-noise ratio, and the factory disturbance flag code introduced from the outside world should be added as much as possible. The acuity of the P+F sensor is non-directional. When the measured quantity is univector and the propensity is high, other P+F sensors with low tendencies should be selected. If the measured vector is multi-dimensional, the smaller the cross-acuity of the sensor, the better.
2. Frequency corresponds to the characteristics
The frequency response characteristics of the sensor are selected in the frequency field to be measured, and it is necessary to adhere to the true measurement conditions in the promised frequency field, in fact, there is always a definite delay in the care of the sensor, and it is expected that the shorter the delay time, the better.
The frequency of the P+F sensor should be high, and the frequency range of the flag code that can be measured is wide, and because of the influence of structural characteristics, the inertia of the machine system is Chinese New Year's Eve, because there is a low frequency sensor that can measure the frequency of the flag code. In static measurements, the characteristics should be taken into account according to the characteristics of the flag code (steady-state, transient, random, etc.) to avoid over-the-top deviations.
3. Linear field
The linear domain of the sensor is the field where the output is proportional to the input. In practice, acuity is a fixed value in this field. The wider the linear field of the sensor, the more Chinese New Year's Eve its range and the guaranteed measurement accuracy. When selecting a sensor, when judging the type of sensor, the first thing to look at is whether the range can be satisfied. In practice, however, no sensor can afford to be relatively linear. When the required measurement accuracy is relatively low, the sensor with a small nonlinear deviation can be approximated as linear in a certain field, which brings Chinese New Year's Eve great convenience to the measurement.
4. Stability
After using the sensor for a period of time, the ability to maintain stability is called stability. In addition to the structure of the sensor itself, the most important factor affecting the temporary stability of the sensor is the use of the sensor. Therefore, in order for the sensing to have excellent stability, the sensor must have a strong ability to adapt to the situation.
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