Sensing device applying ultrasonic lever meter to measure liquid level
A sensing device, ultrasonic technology, applied in the field of ultrasonic measurement, can solve problems such as inaccurate measurement results, and achieve the effects of simple structure, eliminating the influence of liquid bubbles, and low cost
Inactive Publication Date: 2010-06-23
TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY
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[0003] The purpose of the present invention is to provide a method for measuring with an ultrasonic sensing device, which can effectively solve the problem of inaccurate measurement results when using an ultrasonic liquid level gauge to measure the liquid level with bubbles on the liquid surface.
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[0009] Depend on figure 2 As shown, the liquid 1 is housed in the container 3, and the liquid level is indicated by the liquid depth h. There are bubbles 2 floating on the upper surface of the liquid 1, and an ultrasonic liquid level gauge 4 is installed on the upper part of the container 3, which is installed and positioned through the flange 5, and an ultrasonic reflection plate 6 of the sensing device is placed at a set distance below the ultrasonic liquid level gauge , the reflecting plate 6 is placed horizontally, and its thickness is h 3 , the center position below the reflecting plate 6 is connected to the upper end of the connecting rod 7 which is vertically installed and passes through the bracket 8 and the ring at the left end of the bracket 9 respectively, and the lower end of the connecting rod 7 is connected to the upper surface of the floating ball 10, and the floating ball must be guaranteed Centerline and connecting rod 7 axes are straight lines. Connecting ...
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A sensing device applying an ultrasonic lever meter to measure liquid level belongs to the technical field of ultrasonic measurement, which is characterized in that based on the prior art, a sensing device is arranged between an ultrasonic lever meter and the surface of the liquid to be measured, the structure is that the upper end is of a reflecting plate which keeps level position, is in a disc shape and is smooth in the surface, the central position of the lower surface of the reflecting plate is connected with a connecting rod vertical to the reflecting plate, the middle part of the connecting rod is movably sleeved in rings on the ends of two stands, and the other end of the stand is fixedly connected with the inner wall of a container, the lower end of the connecting rod is connected with a floating ball, and half of the floating ball floats on the liquid level. When measuring the liquid level, the ultrasonic wave sent by the ultrasonic lever meter is reflected on the upper surface of the reflecting plate, so the height from the upper surface of the reflecting plate to the bottom of the liquid can be measured, and accurate liquid level value of the liquid surface can be calculated through subtracting the thickness of the reflecting plate, the length of the connecting rod and radius of the floating ball from the height value.
Description
Technical field: [0001] The invention belongs to the technical field of ultrasonic measurement, and in particular relates to a sensor device for measuring liquid level with an ultrasonic liquid level gauge. technical background: [0002] At present, the use of ultrasonic liquid level gauges to measure liquid levels that change at any time has been widely used, such as figure 1 As shown, it is to set the ultrasonic liquid level gauge at a certain distance above the liquid surface, and the probe of the ultrasonic liquid level gauge emits ultrasonic waves to the liquid surface to measure the position of the liquid surface at any time. However, when there are bubbles on the surface of the liquid, the measurement result is not accurate enough, because the ultrasonic wave emitted by the probe is not reflected by the real liquid surface, but reflected back by the upper wall of the bubble on the liquid surface. The liquid level is actually the distance from the upper wall of the bu...
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IPC IPC(8): G01F23/296
Inventor 杜娟张素兰沈晋君
Owner TAIYUAN UNIVERSITY OF SCIENCE AND TECHNOLOGY