CN103217196A - Ultrasonic flow sensor - Google Patents

Ultrasonic flow sensor Download PDF

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Publication number
CN103217196A
CN103217196A CN 201310135628 CN201310135628A CN103217196A CN 103217196 A CN103217196 A CN 103217196A CN 201310135628 CN201310135628 CN 201310135628 CN 201310135628 A CN201310135628 A CN 201310135628A CN 103217196 A CN103217196 A CN 103217196A
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CN
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Prior art keywords
ultrasonic
flow sensor
reflection
tubular body
ultrasonic flow
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CN 201310135628
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Chinese (zh)
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孙卫国
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江苏迈拓智能仪表有限公司
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Abstract

The invention relates to an ultrasonic flow sensor which comprises a tube body and ultrasonic signal reflection devices. Four reflection devices are mounted inside the tube body, each reflection device forms a certain included angle, and ultrasonic signals which are emitted from an ultrasonic transmitting terminal are reflected by the four reflection devices in sequence, and then enter into an ultrasonic receiving terminal at last. By means of the ultrasonic flow sensor, the times of reflection of ultrasonic are increased, therefore, measuring sectional area is increased, measurement accuracy is improved, and measuring error is reduced.

Description

超声波流量传感器 Ultrasonic flow sensors

技术领域 FIELD

[0001] 本发明属于声学、传感技术领域,特别是利用超声检测技术,具体是一种超声波流量传感器结构。 [0001] The present invention belongs to the acoustic, sensor technology, and in particular the use of ultrasonic testing, in particular an ultrasonic flow sensor structure.

背景技术 Background technique

[0002] 管段式超声波流量仪表是以“速度差法”为原理,测量管段圆管内液体流量的仪表。 [0002] Ultrasonic flow meter tube struts principle is the "speed difference method", for the measuring tube pipe liquid flow meter. 它采用了先进的多脉冲技术、信号数字化处理技术及纠错技术,使流量仪表更能适应现场的环境,计量更方便、经济、准确。 It uses an advanced multi-pulse technology, digital signal processing and error correction technology, the flow meter can adapt to the environment in the field, more convenient dosing, economical and accurate. 可广泛应用于石油、化工、冶金、电力、给排水等领域。 It can be widely used in petroleum, chemical, metallurgical, electricity, water supply and drainage.

[0003] 超声波在流动的流体中传播时就载上流体流速的信息。 [0003] When the ultrasonic wave propagates in the fluid flowing on the information on the carrier fluid flow rate. 因此通过接收到的超声波就可以检测出流体的流速,从而换算成流量。 Therefore, by receiving the ultrasonic wave can be detected velocity of the fluid, and thus converted to the volume. 根据检测的方式,可分为传播速度差法、多普勒法、波束偏移法、噪声法及相关法等不同类型的超声波流量计。 The detectable manner, the propagation velocity difference method can be divided into different types of Doppler method, beam offset method, and method of noise correlation method ultrasonic flowmeter.

[0004] 超声波流量仪表的流量传感器结构现有技术一般为二次反射,二次反射式超声波流量传感器测量的是管段中心流速,与平均流速之间的关系随流体状态的不确定而改变,在实际应用中存在较大的测量误差。 [0004] Ultrasonic flow sensor structure prior art flow meter is typically a secondary reflection, the secondary reflection type ultrasonic flow sensor measures the flow rate of the center tube section, and the relationship between the average flow rate of fluid with the uncertain state is changed, the there is a large measurement error in practical use.

发明内容 SUMMARY

[0005] 为克服上述超声波流量传感器结构的缺陷,提供一种科学合理的流量传感器结构,能有效提闻测量精度。 [0005] In order to overcome defects in the ultrasonic flow sensor structure, there is provided a flow rate sensor scientific and rational structure, can effectively improve the measurement accuracy smell.

本发明的技术方法是: Art methods of the present invention is:

一种超声波流量传感器,包括管体和超声波信号反射装置,管体内装有四个反射装置,四个反射装置各自成一定的夹角,超声波信号从超声波发射端发出依次在四个反射装置上反射,最后进入超声波接收端。 An ultrasonic flow sensor, comprising a tubular body and the ultrasonic signal reflection means, the tubular body is equipped with four reflecting means, reflecting means are each four to a certain angle, the ultrasound signals emitted from the ultrasonic transmitter successively reflected on four reflecting means , and finally into the ultrasonic receiver.

[0006] 优选的方案,所述的管体内装有一个测量管。 [0006] preferred embodiment, the tube body provided with one measuring tube.

[0007] 优选的方案,所述的于管体内的四个反射装置均处于管体内测量管的管壁上。 Four reflecting means [0007] preferred embodiment, the tube body in the wall of the tubular body are in the measuring tube.

[0008] 本发明的有益效果,因为增加了测量超声波的反射次数,因此增大了测量截面积,提高了测量精度,减少了测量误差。 [0008] Advantageous effects of the present invention, because of the increased number of reflections of ultrasonic measurement, thus increasing the cross-sectional area measurement, improve the measurement accuracy, the measurement error is reduced.

附图说明 BRIEF DESCRIPTION

[0009] 图1 二次反射式管段超声波流量传感器图2本发明的主视图 [0009] FIG 1 a front view of the secondary pipe reflection type ultrasonic flow sensor of the present invention in FIG. 2

图3本发明的左视图 Left side view of FIG. 3 of the invention

图中:S为超声波信号传输路径,1、管体;2.1,2.2,2.3,2.4为反射装置。 FIG. Where: S is the ultrasonic signal transmission path 1, the tubular body; 2.1,2.2,2.3,2.4 as reflecting means.

具体实施方式 detailed description

[0010] 一种超声波流量传感器,包括管体I和超声波信号反射装置2.1,2.2,2.3,2.4,所述的管体I内装有四个反射装置2.1、2.2、2.3、2.4,四个反射装置2.1、2.2、2.3、2.4各自成一定的夹角,超声波信号从超声波发射端发出依次在四个反射装置上反射,最后进入超声波接收端。 [0010] An ultrasonic flow sensor, comprising a tubular body and the ultrasonic signals I 2.1,2.2,2.3,2.4 reflecting means, said tubular body that has the four I reflected, four reflecting means 2.1,2.2,2.3,2.4 2.1,2.2,2.3,2.4 each into a certain angle, the reflected ultrasonic signals are sequentially emitted on the four ultrasonic wave reflecting means from the transmitting end, and finally into the ultrasonic receiver. [0011] 所述的超声波流量传感器,管体I内装有一个测量管。 [0011] The ultrasonic flow sensor tube I built with one measuring tube.

[0012] 所述的超声波流量传感器结构,管体I内的四个反射装置2.1,2.2,2.3、2.4均处 [0012] The ultrasonic flow sensor structure, 2.1,2.2,2.3,2.4 four reflecting means are within the tubular body at I

于管体I内测量管的管壁上。 I in the tubular body wall of the measuring tube.

Claims (3)

  1. 1. 一种超声波流量传感器,包括管体和超声波信号反射装置,其特征在于管体内装有四个反射装置,四个反射装置各自成一定的夹角,超声波信号从超声波发射端发出依次在四个反射装置上反射,最后进入超声波接收端。 An ultrasonic flow sensor, comprising a tubular body and the ultrasonic signal reflection means, characterized in that the tubular body is equipped with four reflecting means, reflecting means are each four to a certain angle, the ultrasound signals emitted from the ultrasonic wave sequentially in four transmitting end reflection at reflection means, and finally into the ultrasonic receiver.
  2. 2.根据权利要求I所述的超声波流量传感器,其特征在于管体内装有一个测量管。 2. Ultrasonic flow sensor according to claim I in claim 1, characterized in that the tubular body is provided with a measuring tube.
  3. 3.根据权利要求2所述的超声波流量传感器,其特征在于管体内的四个反射装置均处于管体内测量管的管壁上。 The ultrasonic flow sensor according to claim 2, characterized in that four reflecting means are in the tubular body of the wall of the tubular body of the measuring tube.
CN 201310135628 2013-04-18 2013-04-18 Ultrasonic flow sensor CN103217196A (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4103551A (en) * 1977-01-31 1978-08-01 Panametrics, Inc. Ultrasonic measuring system for differing flow conditions
CN203177907U (en) * 2013-04-18 2013-09-04 江苏迈拓智能仪表有限公司 Ultrasonic flow sensors

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4103551A (en) * 1977-01-31 1978-08-01 Panametrics, Inc. Ultrasonic measuring system for differing flow conditions
CN203177907U (en) * 2013-04-18 2013-09-04 江苏迈拓智能仪表有限公司 Ultrasonic flow sensors

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