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Ultrasound flowmeter and method for regulating transducers

A technology of ultrasonic flowmeter and flowmeter, which is applied in the direction of measuring flow/mass flow, liquid/fluid solid measurement, instruments, etc., and can solve problems such as signal deviation

Pending Publication Date: 2019-02-15
南京光声超构材料研究院有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of this, the purpose of the embodiment of the present invention is to provide an ultrasonic flowmeter and a method for adjusting the transducer, so as to solve the problem of signal offset caused by the change of the flow velocity of the medium to be measured in the prior art, and improve the measurement accuracy

Method used

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  • Ultrasound flowmeter and method for regulating transducers
  • Ultrasound flowmeter and method for regulating transducers

Examples

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no. 1 example

[0070] This embodiment provides an ultrasonic flowmeter 10, please refer to figure 1 or figure 2 , the ultrasonic flowmeter 10 includes a flowmeter housing 110 , an adjustment mechanism 130 , a first transducer 120 , and a second transducer 140 . in, figure 1 Shown is a schematic structural diagram of installing the first transducer 120 and the second transducer 140 in a transmission-type installation manner, figure 2 What is shown is a structural diagram of installing the first transducer 120 and the second transducer 140 in a refraction installation manner.

[0071] In this embodiment, the second transducer 140 is installed on the adjustment mechanism 130, and the adjustment mechanism 130 is installed on the flowmeter housing 110, and the adjustment mechanism 130 can drive the second transducer 140 in the first preset direction (see figure 1 , figure 2 in the "X" direction) movement. Wherein, the first preset direction refers to the extension direction of the ultras...

no. 2 example

[0106] This embodiment provides an ultrasonic flowmeter 20, please refer to Image 6 , the ultrasonic flowmeter 20 in this embodiment includes a flowmeter housing 210 and multiple sets of measuring devices 220 . Wherein, any group of measuring devices 220 includes a first transducer, an adjustment mechanism, and a second transducer.

[0107] The first transducer can be directly embedded on the flowmeter housing 210, or can be installed on the flowmeter housing 210 through a fixed base.

[0108] The second transducer is mounted on the adjustment mechanism, which is mounted on the flow meter housing 210 . The second transducer can receive the ultrasonic wave emitted by the first transducer.

[0109] Wherein, the adjustment mechanism can drive the second transducer to move in the first preset direction under the working state. The first preset direction may be the forward flow direction of the medium to be tested, or the reverse flow direction of the medium to be tested.

[0...

no. 3 example

[0113] This embodiment provides a method for adjusting a transducer, which is applied to the ultrasonic flowmeter provided in the foregoing embodiments. The ultrasonic flowmeter includes an adjustment mechanism. If the ultrasonic transducer is installed on the adjustment mechanism, the adjustment mechanism can Drive the ultrasonic transducer to move. For other details of the ultrasonic flowmeter, the adjustment mechanism, the first transducer, and the second transducer mentioned in this embodiment, please refer to the relevant descriptions in the foregoing embodiments, and details will not be repeated here.

[0114] see Figure 7 , the method includes step S310-step S340. The following will combine Figure 8 The described working principle is Figure 7 The method is explained in detail. in, Figure 8 A and B in represent two ultrasonic transducers respectively.

[0115] Step S310: Calculate the instantaneous flow velocity of the medium to be measured.

[0116] The insta...

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Abstract

The embodiment of the invention provides an ultrasound flowmeter and a method for regulating transducers. In the embodiment, the ultrasound flowmeter includes a flowmeter housing, a first transducer mounted on the flowmeter housing, a regulating mechanism mounted on the flowmeter housing, and a second transducer mounted on the regulating mechanism for receiving ultrasonic wave emitted by the firsttransducer; the regulating mechanism in a working state drives the second transducer to move in a first preset direction. In order to solve the problem of the weak intensity , caused by signal excursion, of the received ultrasonic signal, the regulating mechanism can drive the second transducer to move in the first preset direction so as to receive the strong ultrasonic signal in time, and the measurement accuracy is thus improved.

Description

technical field [0001] The invention relates to the field of flow detection, in particular to an ultrasonic flowmeter and a method for adjusting a transducer. Background technique [0002] Ultrasonic flowmeter is a new type of flow measuring instrument based on the principle of ultrasonic acoustics. It uses the principle that the propagation speed of ultrasonic waves changes with the change of medium flow velocity to measure the medium flow velocity, and is widely used in the petrochemical industry. [0003] According to the classification of practical applications, ultrasonic flowmeters can be divided into external clamp type, pipe segment type and insertion type. The external clip-on ultrasonic flowmeter is easy to install and easy to use, but the ultrasonic signal attenuation is serious due to the sparse material of the pipe, poor sound conduction, or serious corrosion, and there is a gap between the lining and the inner space of the pipe. type ultrasonic flowmeter. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01F1/66
CPCG01F1/662G01F1/667
Inventor 卢明辉陈雪中陈光远颜学俊王永永钱登林杨俊鸿冯元会徐晓东陈延峰
Owner 南京光声超构材料研究院有限公司
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