Unlock instant, AI-driven research and patent intelligence for your innovation.

Infrared communication circuit for ultrasonic flowmeter

A technology of infrared communication and flowmeter, applied in the direction of volume measurement, measurement of flow/mass flow, liquid/fluid solid measurement, etc., can solve the problem that the ultrasonic flowmeter cannot work normally, and achieve the effect of simple structure

Inactive Publication Date: 2019-01-25
北海华红信息科技有限公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the above situation, in order to overcome the defects of the prior art, the purpose of the present invention is to provide an infrared communication circuit for ultrasonic flowmeters, which effectively solves the problem that the existing ultrasonic flowmeters cannot work normally under sunlight or incandescent lamps

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Infrared communication circuit for ultrasonic flowmeter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0010] The specific implementation manners of the present invention will be described in further detail below in conjunction with the accompanying drawings.

[0011] Depend on figure 1 Given, the present invention comprises triode Q1, triode Q2, triode Q3, phototransistor U1, electric capacity C1, electric capacity C2, electric capacity C3, resistance R1, resistance R2, resistance R3, resistance R4, resistance R5, resistance R6, resistance R7 and inductance L1, the base of the transistor Q1 is connected to one end of the resistor R1, the other end of the resistor R1 is connected to the signal input terminal, the emitter of the transistor Q1 is grounded to GND, the collector of the transistor Q1 is connected to the 2 pins of the phototransistor U1, and the phototransistor Pin 1 of U1 is connected to power supply VCC, pin 6 of phototransistor U1 is suspended, pin 5 of phototransistor U1 is connected to power supply VCC, pin 4 of phototransistor U1 is connected to one end of resi...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides an infrared communication circuit for an ultrasonic flowmeter. The problem that an existing ultrasonic flowmeter cannot work normally under sunlight or incandescent lamps is solved. According to the scheme, the infrared communication circuit comprises a triode Q1, a triode Q2, a triode Q3, a phototriode U1, a capacitor C1, a capacitor C2, a capacitor C3, a resistor R1, a resistor R2, a resistor R3, a resistor R4, a resistor R5, a resistor R6, a resistor R7 and an inductor L1. Accordingly, the structure is simple, when the sunlight or the incandescent lamps shine on the phototriode, the phototriode generate direct current, by means of the direct current blocking effect of the direct current blocking capacitor C1, the triode Q2 is cut off, and correspondingly, the triode Q3 is cut off; when signal input exists, the triode Q2 and the triode Q3 are in a conductive state, an input signal is amplified, and then the problems that the existing ultrasonic flowmeter cannotwork normally under the environment of the sunlight or the incandescent lamps is solved.

Description

technical field [0001] The invention relates to the technical field of ultrasonic flowmeters, in particular to infrared communication circuits for ultrasonic flowmeters. Background technique [0002] Ultrasonic flowmeter is an application of ultrasonic testing technology, which is a kind of non-destructive testing. Ultrasound can penetrate objects that electromagnetic waves and light waves cannot penetrate. At the same time, it can be reflected on the interface of two substances (materials with different acoustic impedances). Due to the inhomogeneity inside the object, the attenuation of ultrasonic waves is weakened, so that Obtain defects such as cracks and porosity in the body. [0003] Ultrasonic flowmeter is composed of three parts: ultrasonic transducer, electronic circuit, and flow display and accumulation system. The electronic circuit of ultrasonic flowmeter includes transmitting, receiving, signal processing and display circuits. The measured transient flow and cum...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01F15/06G01F1/66G08C23/04
CPCG01F15/068G01F1/66G08C23/04
Inventor 姚洁梅
Owner 北海华红信息科技有限公司