Concrete mixing system based on integrated operational amplifier processing technology design

Abstract

The invention discloses a concrete mixing system based on an integrated operational amplifier processing technology design. The system comprises a central processing unit, a wind pressure circuit, anair quantity circuit and a surge-preventing circuit; an air volume sensor and an I/U conversion circuit are arranged in the air quantity circuit; a preceding stage scaling operation amplification circuit and a post amplification circuit which are connected with each other are arranged in the I/U conversion circuit, an operational amplifier A3, a resistor R3, a resistor R5, a resistor R6 and a resistor R7 are arranged in the post amplification circuit, input ends of the operational amplifier A3 are connected with an output end of the preceding stage scaling operation amplification circuit through the resistor R3 and the resistor R5 respectively, an out put end of the operational amplifier A3 is connected with a first input end of the operational amplifier A3 through the resistor R6, and a second input end of the operational amplifier A3 is connected with the ground through the resistor R7. According to the system, a flowing pressure conversion circuit is cooperatively formed by the scaling operation amplification circuit and the post amplification circuit to achieve conversion from an electric current signal to a voltage signal, so that collected air volume information is safely andreliably transmitted to the central processing unit.

Description

technical field [0001] The invention relates to the fields of commercial concrete technology, electronic technology and the like, and specifically relates to a concrete mixing system designed based on integrated operation and amplifier processing technology. Background technique [0002] Commercial concrete is commercial concrete, which was created by Professor Cai Fangyin, a famous structural scientist, in 1953. On June 7, 1985, the Chinese Language Reform Commission officially approved the synonym of "concrete" and "concrete". [0003] Concrete (tóng) is the scientific name of concrete. [0004] The creator of the word "concrete" is Professor Cai Fangyin, a famous structural scientist. The creation time is 1953, so far 60 years. At that time, teaching technology was backward, there were no tape recorders, and there were no photocopiers... Students took notes in class. "Concrete" is the most commonly used word in construction engineering, but with too many strokes, it is...

AI Technical Summary

Problems solved by technology

At that time, teaching technology was backward, there were no tape recorders, and there were no copiers...Students relied on taking notes in class

"Concrete" is the most commonly used word in construction engineering, but with too many strokes, it is laborious and time-consuming to write! So the quick-thinking Cai Fangyin boldly used the word "artificial stone" instead of "concrete".

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