Calibration:

The process of calibrating a sensor with a standard instrument is called calibration. For piezoelectric pressure sensors, special calibration equipment, such as piston pressure gauges, is used to generate a standard force of known magnitude.

When acting on the sensor, the sensor will output a corresponding charge signal. At this time, the charge signal is measured with a standard detection device of known accuracy to obtain the size of the charge signal, thereby obtaining a set of input-output relationships. Such a series of processes is the calibration process of the piezoelectric pressure sensor.

Instrument calibration:

To a certain extent, calibration is also a kind of calibration, that is, after a period of storage or use, the sensor needs to be retested to detect whether the basic performance of the sensor has changed and to determine whether it can continue to be used.

Therefore, calibration refers to the retesting of the performance of the sensor during use or after storage. During the calibration process, some indicators of the sensor have changed and should be corrected.

What is calibration in sensors? What is calibration?

Extended data:

The characteristics of sensors include miniaturization, digitization, intelligence, multi-function, systematization and networking. This is the first step to achieve automatic detection and control. With the existence and development of sensors, objects have senses such as touch, taste, and smell, which make objects slowly come alive.

Generally, they are divided into ten categories according to their basic sensing functions: thermal sensors, photosensitive elements, gas sensors, force sensors, magnetic sensors, humidity sensors, sound sensors, radiation sensors, color sensors, and taste sensors.

In order to obtain information from the outside world, people must rely on sensory organs. However, relying solely on human sensory organs is far from enough to study natural phenomena and laws and their role in production activities. In order to adapt to this situation, sensors are needed. So it can be said that sensors are an extension of the five senses of the human body, also called electrical five senses.