What do you mean by detective?

A detector is an instrument used to detect physical quantities. Among them, the detector (or probe) is the core component to detect physical quantities, and its function is similar to human senses. The detector converts the physical signals in the environment into electrical signals, thus realizing the measurement and monitoring of this physical quantity.

Detectors are widely used in all walks of life, including geological exploration, environmental monitoring, safety monitoring, medical diagnosis, nondestructive testing and so on. For example, gravimeters, magnetometers and seismometers commonly used in geophysical exploration can all be regarded as one kind of detection instruments. In addition, ECG, ultrasound and other medical equipment are also a kind of detector.

With the continuous progress of science and technology, detectors are developing in the direction of more intelligence, multifunction and miniaturization. In terms of hardware, the accuracy, sensitivity and stability of the detector are gradually improved; In terms of software, it has more data processing and analysis functions. Future detectors will become more intelligent, capable of independent judgment, independent calibration and independent error correction. At the same time, due to the continuous introduction of new materials and technologies, the volume and weight of the detector will continue to decrease, making it easy to carry and use.