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

Signal Compensation Circuit of Pipe Corrosion Measuring Instrument

A technology of signal compensation and corrosion degree, which is applied in the field of signal calibration, can solve problems such as insufficient signal power, affecting the measurement accuracy of the pipeline corrosion degree measuring instrument, and the uncontrollable working environment of the pipeline corrosion detector

Active Publication Date: 2021-07-06
拓普思传感器(太仓)有限公司
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Pipeline corrosion detection refers to the in-pipeline inspection for the purpose of detecting metal loss such as pipe wall corrosion. The signal compensation circuit of the corrosion degree measuring instrument is to calibrate the collected signal and improve the measurement accuracy of the pipeline corrosion degree measuring instrument. However, in practice, the working environment of the pipeline corrosion measuring instrument is uncontrollable. The analog signal received by the instrument control terminal will hop frequency, and even the signal will be distorted due to insufficient signal power during transmission, which will seriously affect the measurement accuracy of the pipeline corrosion degree measuring instrument

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
  • Signal Compensation Circuit of Pipe Corrosion Measuring Instrument
  • Signal Compensation Circuit of Pipe Corrosion Measuring Instrument
  • Signal Compensation Circuit of Pipe Corrosion Measuring Instrument

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1. The signal compensation circuit of the pipeline corrosion degree measuring instrument includes a frequency acquisition circuit, a push-pull buffer circuit and a compensation output circuit. The frequency acquisition circuit collects the analog signal frequency when the pipeline corrosion degree measuring instrument is working. The analog signal is the pipeline The corrosion degree measuring instrument controls the signal received by the terminal, and uses the triode Q1 and the triode Q2 to form a switch circuit to isolate the low-level signal. The signal processing circuit not only improves the load capacity of the circuit, but also improves the switching speed. At the same time, the buffer circuit composed of resistor R8, capacitor C4 and transistor Q6 is used to buffer the signal, and the transistor Q7 is used to feed back the output signal of the operational amplifier AR1 to the transistor Q5 for transmission. Pole, adjust the signal conduction value of ...

Embodiment 2

[0017] Embodiment 2. On the basis of Embodiment 1, the compensation output circuit uses the power supply +10V to compensate the output signal of the operational amplifier AR2 after being divided by the variable resistor RW2, and the compensation can be changed by adjusting the resistance potential of the variable resistor RW2. The potential of the signal, because the potential value of the push-pull buffer circuit is not enough to compensate the analog signal when the pipeline corrosion degree measuring instrument is working, so the base potential of the output signal of the operational amplifier AR2 is obtained by using an external power supply +10V and dividing the voltage by the variable resistor RW2. And use resistor R16, resistor R17, capacitor C5, and capacitor C6 to form an RC circuit to filter and output, that is, to compensate the analog signal when the pipeline corrosion degree measuring instrument is working. One end of resistor R16 is connected to one end of capacito...

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 discloses a signal compensation circuit of a pipeline corrosion degree measuring instrument, which includes a frequency acquisition circuit, a push-pull buffer circuit and a compensation output circuit. The circuit uses the push-pull circuit composed of transistor Q3, transistor Q4, transistor Q5, diode D4, and diode D3 to process the signal, and at the same time uses the buffer circuit composed of resistor R8, capacitor C4 and transistor Q6 to buffer the signal, and uses the transistor Q7 to feed back the operational amplifier AR1 outputs the signal to the emitter of the triode Q5, and finally the operational amplifier AR2 amplifies the signal in phase and then inputs it into the compensation output circuit, and finally the compensation output circuit uses the power supply +10V to compensate the output signal of the operational amplifier AR2 after being divided by the variable resistor RW2 , and use resistor R16, resistor R17, capacitor C5, and capacitor C6 to form an RC circuit to filter and output, which can convert the frequency of the analog signal into a compensation signal for the analog signal of the pipeline corrosion degree measuring instrument.

Description

technical field [0001] The invention relates to the technical field of signal calibration, in particular to a signal compensation circuit of a pipeline corrosion degree measuring instrument. Background technique [0002] Pipeline corrosion detection refers to the in-pipeline inspection for the purpose of detecting metal loss such as pipe wall corrosion. The signal compensation circuit of the corrosion degree measuring instrument is to calibrate the collected signal and improve the measurement accuracy of the pipeline corrosion degree measuring instrument. However, in practice, the working environment of the pipeline corrosion measuring instrument is uncontrollable. The analog signal received by the instrument control terminal will hop frequency, and even the signal will be distorted due to insufficient signal power during transmission, which seriously affects the measurement accuracy of the pipeline corrosion degree measuring instrument. [0003] So the present invention pr...

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 Patents(China)
IPC IPC(8): G01N33/2045H03K19/0175
CPCG01N33/20H03K19/0175
Inventor 赵荣华杨蕊侯艳红丁积仓朱俊涛许盈盈师燕滑郑朝晖张现增
Owner 拓普思传感器(太仓)有限公司