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Material level measuring method and system

A detection method and detection system technology, which are used in measurement devices, liquid/fluid solid measurement, engine lubrication, etc., can solve problems such as high failure rate, large measurement error, and inability to obtain the level of objects in real time.

Active Publication Date: 2015-04-22
AUDIOWELL ELECTRONICS GUANGDONG
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Problems solved by technology

[0004] Based on this, it is necessary to provide a material level detection method and system for the problems of large measurement error and high failure rate of the above-mentioned non-contact measurement method, and the inability to obtain the material level of the object in real time

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Embodiment Construction

[0029] In order to make the purpose, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0030] see figure 1 , figure 1 is a schematic flow chart of the first embodiment of the level detection method of the present invention.

[0031] The level detection method of this embodiment may include the following steps:

[0032] Step S101, respectively detecting the interval between the sending time and the receiving time of each of the four ultrasonic signals sent to the object to be measured, and generating the transmission time of each ultrasonic signal, wherein the first ultrasonic signal is sent by the first sensor and receiving, the second ultrasonic signal is sent by the first sensor and received by the second sensor, the third ultrasonic signal is sent and received by the second sensor, the fourth ultrasonic signal is sent by the second sensor and ...

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Abstract

The invention discloses a material level measuring method and system. The method comprises the steps that the intervals between the sending time and the receiving time of four ultrasonic wave signals which are sent to a to-be-measured object are measured, and the transmission time of each ultrasonic wave signal is generated; the transmission time of each ultrasonic wave signal is multiplied by the transmission velocity of each ultrasonic wave signal respectively, and the transmission distance of each ultrasonic wave signal is generated; if the four transmission distances are all larger than preset blind area distance, the average value of the transmission distance of the first ultrasonic wave signal and the transmission distance of the third ultrasonic wave signal is obtained, and average distance is generated; whether the transmission distance of the second ultrasonic wave signal, the transmission distance of the fourth ultrasonic wave signal and the average distance mutually satisfies a preset approximately equal condition is judged, and if the satisfying is achieved, the vertical height from the vertex to the base of a material level isosceles triangle is obtained as the material level of the to-be-measured object. The material level measuring method and system can continuously measure the material level of the to-be-measured object, the error is small, and the failure rate is low.

Description

【Technical field】 [0001] The invention relates to the technical field of distance measurement, in particular to a material level detection method and system. 【Background technique】 [0002] At present, the level detection of granular objects is mainly divided into contact type and non-contact type. The non-contact measurement method is mainly single-point measurement. A single sending point sends ultrasonic waves and a single receiving point receives the ultrasonic waves sent by the sending point. method to measure the level of granular objects. [0003] However, the above-mentioned non-contact measurement method has a large measurement blind area, and is easily affected by factors such as the uneven surface of the object, the dielectric constant, humidity, viscosity, and thermal conductivity. Therefore, the above-mentioned non-contact measurement method has a large measurement error and a high failure rate, and it is impossible to obtain the material level of the object in...

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Application Information

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IPC IPC(8): G01F23/296
Inventor 彭坤良彭波张曙光
Owner AUDIOWELL ELECTRONICS GUANGDONG
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