Data acquisition device and acquisition method thereof

Abstract

The invention discloses a data acquisition device. The device is characterized in that an acquisition module is connected to an excitation source and an automatic zero setting module and is used for collecting changed data of detected equipment; the other end of the excitation source is connected to a control module and is used for connecting or disconnecting the acquisition module under control of the control module; the other end of the automatic zero setting module is connected to a processing module; the other end of the processing module is connected to the control module; a temperature acquisition module is connected to a temperature calibration module; the temperature calibration module is connected to the control module; and the control module is also connected to a transmission module. In the invention, data acquisition precision is increased, simultaneously, because of the temperature calibration module, the data acquisition device is miniature so that usage and loading are convenient.

Description

technical field [0001] The application relates to a data collection device and a collection method, belonging to the technical field of physical quantity collection. Background technique [0002] Data acquisition refers to the process of collecting data signals from sensors and other devices under test. Today, when computers are widely used, data acquisition is very important as a bridge connecting computers with the external physical world. [0003] The purpose of data acquisition is to measure physical phenomena such as voltage, current, temperature, pressure or sound, and its accurate data measurement is the basis of data acquisition. In the prior art, when the data acquisition equipment has high acquisition accuracy and sensitivity, the size of the equipment is large, which is inconvenient to use and move, and when the size of the data acquisition equipment is small, the accuracy and sensitivity of data acquisition cannot be guaranteed, especially when When the device u...

AI Technical Summary

Problems solved by technology

In the prior art, when the data acquisition equipment has high acquisition accuracy and sensitivity, the size of the equipment is large, which is inconvenient to use and move, and when the size of the data acquisition equipment is small, the accuracy and sensitivity of data acquisition cannot be guaranteed, especially when When the device under test gives a weak voltage signal or a weak resistance change, the data acquisition equipment in the prior art cannot perform accurate data acquisition

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