Sensor basics and common terms

1. Sensor: A device or device that can sense a specified measurement and convert it into a usable output signal according to a certain law. There are usually sensitive components and conversion components. 1 Sensitive element refers to the part of the sensor that can be directly (or responsive) to be measured. 2 Conversion element refers to the north side of the sensor that can be sensed (or responded) by the sensitive element is converted into a portion of the electrical signal that is transmitted and/or measured. 3 When the output is the specified standard signal, it is called the transmitter. 2. Measurement range: The range of measured values ​​within the allowable error limit.

3. Range: The algebraic difference between the upper and lower limits of the measurement range.

4. Accuracy (linear accuracy): The degree of agreement between the measured result and the true value.

5. Reproducibility (Repeat Accuracy): The degree of coincidence between the results of multiple consecutive measurements of the same measured quantity under all of the following conditions:

6. Resolving power: The minimum amount of measured change that the sensor may detect in the specified measuring range circle.

7. Threshold: The smallest change that can be measured at the output of the sensor to produce measurable changes.

8. Zero: The state where the absolute value of the output is the smallest, such as the equilibrium state.

9. Excitation: External energy (voltage or current) applied to make the sensor work properly.

10. Maximal stimulus: The maximum value of the excitation voltage or current that can be applied to the sensor under the conditions in the city.

11. Input impedance: The measured impedance at the input of the sensor when the output is short-circuited.

12. Output: There is an amount of electricity generated by the sensor that is measured as a functional relationship.

13. Output Impedance: The measured impedance at the output of the sensor when the input is short-circuited.

14. Zero output: In the city conditions, the output of the sensor is added when it is measured as zero.

15. Hysteresis: The maximum difference that occurs in the output when the measured value increases and decreases within the specified range.

16. Late: The time delay of the change in the output signal relative to the input signal.

17. Drift: At certain intervals of time, the sensor output is finally measured for unrelated unwanted changes.

18. Zero drift: Changes at a specified time interval and at zero output in indoor conditions.

19. Sensitivity: The ratio of the sensor output increment to the corresponding input increment.

20. Sensitivity drift: The change in the slope of the calibration curve due to changes in sensitivity.

21. Thermal sensitivity drift: Sensitivity drift due to changes in sensitivity.

22. Thermal zero drift: Zero drift due to changes in ambient temperature.

23. Linearity: The extent to which the calibration curve is consistent with a provision.

24. Filipino linearity: The degree to which the calibration curve deviates from a given straight line.

25. Long-term stability: The sensor can still maintain the ability to not exceed the allowable error within the specified time.

26. Intrinsic calibre: The sensor's freedom (without external force) oscillating rate when there is no resistance.

27. Response: The characteristics of the measured change at the time of output.

28. Compensating temperature range: The temperature range that compensates for the sensor's zero balance in the range and specified limits.

29. Creep: When there are many environmental conditions to be measured in the machine being measured, the output changes in the specified time.

30. Insulation resistance: In the absence of other regulations, the resistance value measured between the insulation parts of the sensor when the specified DC voltage is applied at room temperature.