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Material flow sensor

A sensor and material flow technology, applied in the field of material flow sensors, can solve problems such as inconvenient use and maintenance, low measurement accuracy, unstable work, etc., and achieve the effects of easy installation and debugging, high precision, and small external environment interference

Active Publication Date: 2012-12-26
TANGSHAN ZHICHENG ELECTRICAL GRP
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Problems solved by technology

[0002] At present, all the sensors used to measure the material flow on the belt conveyor are contact-type switching signal output sensors. The working principle of this kind of sensor is that after the material flow touches the sensor, the sensor outputs a switching signal; Stable, low measurement accuracy, easy to be damaged, very inconvenient to use and maintain

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  • Material flow sensor

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Embodiment approach

[0016] The user interface 1 is a keyboard and an indicator light. As a human-computer interaction interface, the linear relationship between the analog output of the output circuit 3 of the present invention and the measured material flow 19 is first set; Above: the first detection unit transmits laser light with a frequency of 250 Hz and a wavelength of 671 nm through the transmitting circuit 4 and the laser transmitter 5, and reflects it to the receiving element 8 through the measured material flow 19, and passes through the analog signal processing circuit 7 and The echo analysis engine 2 6 sends the signal to the microprocessor 2; the second detection unit transmits a laser with a frequency of 1KHz and a wavelength of 1047nm through the transmitting circuit 9 and the laser transmitter 10, and reflects it to the receiver through the measured material flow 19 Component two 13 sends the signal to the microprocessor 2 through the analog signal processing circuit two 12 and the ...

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Abstract

The invention relates to a material flow sensor, belonging to the technical field of material flow detection. According to the technical scheme of the invention, the material flow sensor comprises a user interface (1), a microprocessor (2), an output circuit (3) and detection units, wherein a plurality of detection units are arranged, are connected with the microprocessor respectively, and are controlled by using the same microprocessor; the transmission laser frequencies and wavelengths of the detection units are different; respective receiving unit is used for receiving laser bounce of respective wavelength and frequency, and is used for calculating the thickness of material flow through a respective analog quantity signal processing circuit, filtering the signal through an echo wave analysis engine and transmitting to the microprocessor; and the microprocessor is used for calculating the real-time thickness of the material flow, and reflecting the thickness of the material flow as a current signal through an output circuit. During detection of material loading flow of a sealing-tape machine, thicknesses can be detected accurately for material flow in the forms of blocks, powder, paste, water and the like; and linear analog quantity output of a signal is realized by processing through one set of microprocessor, so that the defects of a contact sensor is overcome.

Description

technical field [0001] The invention relates to a material flow sensor, which belongs to the technical field of industrial material flow detection and control. Background technique [0002] At present, all the sensors used to measure the material flow on the belt conveyor are contact-type switching signal output sensors. The working principle of this kind of sensor is that after the material flow touches the sensor, the sensor outputs a switching signal; Stable, low measurement accuracy, easy to be damaged, very inconvenient to use and maintain. Contents of the invention [0003] The purpose of the present invention is to provide a material flow sensor, which is a non-contact output analog signal sensor, which is easy to install and debug, has the characteristics of high measurement accuracy and durability, reduces the workload of on-site staff, and improves work efficiency. , to solve the above-mentioned problems existing in the background technology. [0004] The techn...

Claims

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Application Information

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IPC IPC(8): G01B11/06
Inventor 肖卫雄马永飞张健肖健张召松冯小娜孙喜涛付合营王利军冯云缪赛施振华
Owner TANGSHAN ZHICHENG ELECTRICAL GRP