Common terms for sensors

1. Sensor: A device or device that can sense the specified measured and convert it into an output signal according to a certain rule. Usually consists of sensitive components and conversion components. ①Sensitive element refers to the part of the sensor that can be measured directly (or in response). ②The conversion element refers to the part of the electrical signal that can be sensed (or responded) by a more sensitive element in the sensor and converted into an electrical signal that is transmitted and/or measured. ③ When the output is a specified standard signal, it is called a transmitter. 2. Measurement range: It is the range of the measured value within the allowable error range. 3. Range: the algebraic difference between the upper limit value and the lower limit value of the measurement range. 4. Accuracy: The degree of agreement between the measured result and the true value. 5. Repeatability: Under all the following conditions, the degree of agreement between the results obtained from multiple consecutive measurements of the same measured quantity, the same measurement method, the same observer, the same measuring instrument, the same location, and the same conditions of use, repetition in a short period of time. 6. Resolution: The minimum change that the sensor can detect within the specified measurement range. 7. Threshold: The minimum measured change that can make the sensor output produce a measurable change. 8. Zero position: the state in which the absolute value of the output is minimized, such as a balanced state. 9. Excitation: External energy (voltage or current) applied to make the sensor work properly. 10. Maximum excitation: the maximum value of excitation voltage or current that can be applied to the sensor under urban conditions. 11. Input impedance: the impedance measured at the sensor input when the output is short-circuited. 12. Output: the amount of electricity generated by the sensor that is a function of the external measurement. 13. Output impedance: the impedance measured at the sensor output when the input is short-circuited. 14. Zero output: under indoor conditions, the output of the sensor when the added measured value is zero. 15. Hysteresis: within the specified range, when the measured value increases and decreases, the maximum difference that appears in the output. 16. Late: the time delay of the output signal change relative to the input signal change. 17. Drift: In a certain time interval, there is an unwanted change in the output of the sensor that has nothing to do with the measurand. 18. Zero point drift: the change of zero point output in the specified time interval and indoor conditions. 19. Sensitivity: the ratio of the increment of the sensor output to the corresponding increment of the input. 20. Sensitivity drift: The change in the slope of the calibration curve caused by the change in sensitivity. 21. Thermal Sensitivity Drift: Sensitivity drift caused by changes in sensitivity. 22. Thermal zero drift: zero drift caused by changes in ambient temperature. 23. Linearity: the degree to which the calibration curve is consistent with a specified straight line. 24. Nonlinearity: the degree of deviation of the calibration curve and a specified straight line. 25. Long-term stability: The sensor can still maintain the ability to not exceed the allowable error within the specified time. 26. Natural frequency: when there is no resistance, the free (without external force) oscillation of the sensor depends on the rate. 27. Response: The characteristic of the measured change during output. 28. Compensation temperature range: the temperature range compensated by making the sensor maintain the zero balance within the range and the specified limit. 29. Creep: The change of output within a specified time when the environmental conditions of the measured machine are kept constant. 30. Insulation resistance: If there is no other regulation, it refers to the resistance value measured between the specified insulation parts of the sensor when the specified DC voltage is applied at room temperature.

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