Array type ultrasonic paper thickness measurement device

Abstract

An array type ultrasonic paper thickness measurement device disclosed by the present invention comprises a pedestal, a tank body, a breather pipe, a support, a paper carrying surface and N2 measurement mechanisms. The structures of the measurement mechanisms are same and are in rectangular array type arrangement after being installed, the row number and the column number of an array are both N, and the distances between the horizontal or vertical adjacent measurement mechanisms are same. Each measurement mechanism comprises an ultrasonic emission probe, an ultrasonic reception probe, a piston, a left cylindrical pipe, a pipe sleeve, a right cylindrical pipe, a connecting pin, a locking pin, a spring, an electromagnet, a fixing pin and a measurement end face. The array type ultrasonic paper thickness measurement device comprises the plurality of measurement mechanisms, and can realize the multi-point measurement. During the measurement process, each measurement mechanism operates independently, the thicknesses of the different local parts of a whole paper can be measured respectively and individually, and the average value of the measurement values of a plurality of points represents the thickness value of the whole paper, so that a measurement result is more reliable.

Description

technical field [0001] The invention relates to the field of ultrasonic ranging, in particular to an array type ultrasonic paper thickness measuring device. Background technique [0002] Most of the existing ultrasonic paper thickness measuring devices use a single set of ultrasonic transmitting and receiving probes to measure paper thickness. Application No. 201410232558.2 discloses an ultrasonic paper thickness measuring device. During the measurement process, the ultrasonic probe is always in the water, and the device is placed horizontally, which reduces the risk of measurement errors caused by bubbles in the water adhering to the ultrasonic probe. Although this solution can measure the thickness of a certain point of the paper, its disadvantage is that when a single set of ultrasonic transmitting and receiving probes are used for measurement, it can only measure the thickness of a small local area of ​​the entire paper, and the paper is in the forming process. There is...

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Problems solved by technology

Although this solution can measure the thickness of a certain point of the paper, its disadvantage is that when a single set of ultrasonic transmitting and receiving probes are used for measurement, it can only measure the thickness of a small local area of ​​the entire paper, and the paper is in the forming process. There is a phenomenon of uneven thickness, therefore, the thickness value of the whole paper is represented by a local thickness value, sometimes resulting in measurement errors

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