Multichannel high-collection-speed temperature measurement system

Abstract

The invention relates to a multichannel high-collection-speed temperature measurement system. The system comprises a thermocouple, a temperature transmitter, a data switching board card, a filtering circuit board card, a high-frequency data collection board card and a computer terminal; and the thermocouple implements positioning on a sand mold surface via a positioner, and is connected with one end of the temperature transmitter, the other end of the temperature transmitter is connected to independent filtering circuits in the filtering circuit board card via different channels of the data switching board card, each independent filtering circuit is connected to different channels of the high-frequency data collection board card, and a USB interface of the high-frequency data collection board card is connected with the computer terminal installed with data collection and conversion software. The temperature measurement system can satisfy requirements of high speed and multiple points for temperature measurement in practical production application. Due to the characteristics of multiple channels and high collection speed of the system, many data points can be collected, the obtained data bulk is large, and result analysis and calculation are more comprehensive and reliable. An electromotive force is converted to temperature data in software, the obtained result represents a temperature value, the data processing time is reduced, and the working efficiency is improved.

Description

technical field [0001] The invention relates to a temperature measurement system, in particular to a multi-channel high acquisition rate temperature measurement system. Background technique [0002] In the process of metal thermal processing, due to the needs of production or experiments, it is often necessary to measure and monitor the temperature changes of media, such as liquid alloys, in real time. In order to completely and accurately describe the temperature change process of the medium, the temperature measurement points are generally required to be more than 16 to 32, and the temperature acquisition frequency must be above 100Hz. At present, the commonly used temperature detection equipment is the temperature inspection instrument, because the temperature inspection instrument is mainly used in industrial furnace temperature distribution, electronic product characteristic test, communication room and other occasions where the temperature change is not very fast or th...

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to solve the problem of low frequency of temperature measurement and acquisition when there are many requirements for temperature measurement points, and at the same time directly process and convert the collected data into temperature display, realize multi-channel high acquisition rate temperature measurement, and meet the actual needs of production

Each temperature transmitter has a built-in thermistor for temperature compensation

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