传感器与检测技术(双语)1.docx

传感器与检测技术(双语)1
传感器与检测技术(双语)1
传感器与检测技术(双语)1
Therefore, it is a necessary but not sufficient condition for accuracy.
欢迎共阅
Chapter 1
between the meaning of sensor and that of transducer.
A transducer is a device that converts a signal from one physical form to a corresponding signal having a different physical form
A sensor is a device that converts a signal to an electric output.
Sensor & transducer ：sometimes are synonymous terms. However, sensor suggests the extension of our capacity to acquire information about physical quantities not perceived by human senses because of their subliminal nature or minuteness. Transducer implies that input and output quantities are not the same. A sensor may not be a transducer.
characteristics of sensors: Range, Accuracy, Repeatability, Precise, Sensitivity, Resolution, Threshold, Linearity, Hysteresis.
Accuracy （精确度） :
Accuracy is the quality that characterizes the capacity of a measuring instrument for giving results close to the true value of the measured quantity
Repeatability （重复性） :
The repeatability is the closeness of agreement between successive results obtained with the same method under the same conditions and in a short time interval. Quantitatively, the repeatability is the minimum value that exceeds, with a specified
probability, the absolute value of the di ¨ er