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Amplitude compensation method, signal acquisition circuit and dissolved oxygen transmitter circuit

A technology of amplitude compensation and circuit, which is applied in the field of transmitter signal processing, can solve the problem of large amount of signal calculation, and achieve the effect of reducing calculation amount, reducing power consumption, and reducing requirements

Inactive Publication Date: 2022-02-08
山东仁科测控技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides an amplitude compensation method, a signal acquisition circuit and a dissolved oxygen transmitter circuit, which solves the problem that the transmitter uses the fast Fourier transform method to process signals with different amplitudes and has a large amount of calculation.

Method used

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  • Amplitude compensation method, signal acquisition circuit and dissolved oxygen transmitter circuit
  • Amplitude compensation method, signal acquisition circuit and dissolved oxygen transmitter circuit
  • Amplitude compensation method, signal acquisition circuit and dissolved oxygen transmitter circuit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Such as figure 1 As shown, an amplitude compensation method includes compensation phase, inspection phase and working phase,

[0042] The compensation phase consists of the following steps,

[0043] Step 1, the physical signal transmitting device transmits the detection physical signal, and the detection physical signal is transmitted to the physical signal receiving device through the area to be detected;

[0044] Step 2, the physical signal receiving device receives the detection physical signal transmitted by the physical signal transmitting device, and outputs a corresponding detection electrical signal;

[0045] Step 3: The single-chip microcomputer compares the peak value of the detected electrical signal with the pre-stored value. If the peak value of the detected electrical signal is greater than the pre-stored value, the compensation phase ends and enters the inspection phase. Otherwise, the single-chip microcomputer controls the physical signal transmitting d...

Embodiment 2

[0057] The difference between this embodiment and Embodiment 1 is that in step nine, the reference physical signal transmitting device transmits the reference physical signal, the reference physical signal is transmitted to the physical signal receiving device through the area to be detected, and the physical signal receiving device receives the reference physical signal , and output the corresponding reference electrical signal.

Embodiment 3

[0059] Such as Figure 2-5As shown, the amplitude-changing signal acquisition circuit includes a physical signal receiving and processing circuit, a peak hold circuit, a physical signal transmitting circuit, and a single-chip microcomputer U18, and the physical signal receiving and processing circuit includes a physical signal receiving device, an operational amplifier U5.2, a capacitor C28, and a resistor R22 , capacitor C27, resistor R27, resistor R28, operational amplifier U5.1, resistor R29, capacitor C29, capacitor C47, resistor R32, resistor R31, operational amplifier U6.1, resistor R30, capacitor C46, ​​physical signal receiving device The first terminal is grounded, the second terminal is connected to the inverting input terminal of the operational amplifier U5.2, the non-inverting input terminal of the operational amplifier U5.2 is grounded, and the output terminal of the operational amplifier U5.2 is connected to the first terminal of the capacitor C27 , the first en...

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Abstract

The invention relates to the field of transmitter signal processing, and solves the problem that in the prior art, a transmitter adopts a fast Fourier transform method to process signals with different amplitudes, and the calculated amount is large. An amplitude compensation method comprises a compensation stage and a working stage and comprises the steps that 1 a detection physical signal is transmitted by a physical signal transmitting device; 2 a physical signal receiving device receives the detection physical signal; and 3 a single-chip microcomputer compares the peak value of the detection electric signal with a pre-stored value, if the peak value of the detection electric signal is greater than the pre-stored value, a working stage is entered, otherwise, the physical signal transmitting device improves the power, and the step 1, the step 2 and the step 3 are carried out again. A variable amplitude signal acquisition circuit comprises a physical signal receiving and processing circuit, a peak holding circuit, a physical signal transmitting circuit and a single-chip microcomputer. A dissolved oxygen transmitter circuit comprises a power supply circuit, a physical signal receiving and processing circuit, a peak holding circuit, a physical signal transmitting circuit, a voltage comparison circuit and a single-chip microcomputer.

Description

technical field [0001] The invention relates to the field of transmitter signal processing, in particular to an amplitude compensation method, a signal acquisition circuit and a dissolved oxygen transmitter circuit. Background technique [0002] A transmitter is a general term for a device or device that can be affected by a specified measured value and converted into an available output signal according to a certain rule. It is usually composed of a sensitive element and a conversion element. The output of the transmitter is a specified standard signal. Some transmitters have a physical signal transmitting mechanism and a corresponding physical signal receiving mechanism, and the information of the physical quantity to be measured can be obtained by comparing the received physical signal with the transmitted physical signal. When the transmitter is in different environments, the amplitude of the electrical signal converted from the received physical signal is often very dif...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/17G01N21/01
CPCG01N21/17G01N21/01G01N2021/0112
Inventor 杨垒张朝周在伟
Owner 山东仁科测控技术有限公司