Traffic transducer

A transducer and flow technology, which is used in the measurement of flow/mass flow, liquid/fluid solid measurement, instruments, etc., can solve the problems of insufficient sensitivity of the received signal and small receiving area, so as to reduce the test blind area and expand the receiving range. , the effect of improving the test accuracy

Pending Publication Date: 2019-04-09
无锡市宇超电子有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Although the ultrasonic flow transducer does not suffer from signal attenuation due to temperature changes, which improves the stability of signal transmission and anti-interference ability, its receiving area is often small, resulting in insufficient sensitivity of the received signal.

Method used

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  • Traffic transducer

Examples

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Embodiment 1

[0022] Example 1: A flow transducer such as figure 1 As shown, it includes a cavity 1, the cavity 1 is provided with a lead 2 that penetrates into the cavity 1, a chip 3 is connected to the lead 2 in the cavity 1, and a double-layer matching layer 4 is arranged above the chip 3. 3 Below is the air layer 5, the outer wall of the cavity 1 is also provided with a circular ring groove 6, and the two sides of the circular ring groove 6 are provided with 0.1mm chamfers 7, the height of the circular ring groove 6 is 3.2mm, and the diameter is 28.2mm, and the height from the inner wall to the outer wall of the cavity 1 is 6mm.

[0023] An expansion device 8 is also provided on the outer wall of the cavity 1, and the expansion device 8 includes a groove provided on the outer wall of the cavity 1; On the inner wall of the groove; 81, so that the circular tube 82 is fixed in the groove; 1. There is a slot 85 under the outer wall, so that the soft plastic plate 83 can be hooked in the g...

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PUM

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Abstract

The invention discloses a traffic transducer for providing a traffic transducer that improves the test accuracy of the transducer and reduces the test dead zone of the transducer. The key point of thetechnical scheme is that the traffic transducer comprises a cavity, a lead penetrating through the interior of the cavity is arranged at the outside of the cavity, a chip connected with the lead is arranged in the cavity, double matching layers are arranged above the chip, an air layer is arranged below the chip, a circular ring groove is further formed in an outer wall of the cavity, and 0.1mm chamber angles are arranged on two side edges of the circular ring groove.

Description

technical field [0001] The invention relates to the field of transducer equipment, in particular to a flow transducer. Background technique [0002] A transducer is a device that converts electrical energy and sound energy into each other. Used in echo sounders, Doppler logs and acoustic correlation logs. Converting electrical energy into sound energy is called a transmitting transducer; converting sound energy into electrical energy is a receiving transducer. The transmit and receive transducers are usually used separately, but one can also be shared. The main performance indicators of the transducer are: operating frequency, frequency bandwidth, electro-acoustic frequency, impedance at resonant frequency, directivity (transmission beam width) and sensitivity. According to the different physical properties and materials used, transducers can be divided into two categories: magnetostrictive transducers and electrostrictive transducers. The former applies the magnetostric...

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 高强
Owner 无锡市宇超电子有限公司
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