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Microwave sensor, microwave signal processing system and detection method thereof

A microwave sensor and microwave signal technology, which is applied in the field of microwave systems, can solve problems such as high cost and difficult production, and achieve the effects of cost reduction, flexible functions, and broad application prospects

Inactive Publication Date: 2019-07-02
康特卫普技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems that existing microwave sensors in the prior art can be manufactured based on soft lithography technology, the cost is high, and the production is difficult, the present invention provides a microwave sensor, a microwave signal processing system and a detection method, which can realize The production of sensors and systems is simple, the detection is accurate, and the cost is greatly reduced

Method used

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  • Microwave sensor, microwave signal processing system and detection method thereof
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  • Microwave sensor, microwave signal processing system and detection method thereof

Examples

Experimental program
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Embodiment 1

[0043] This program designs a microwave sensor, and a microwave signal processing system and detection method based on this sensor, which can be used for rapid food safety detection and quality control. Various devices or processes are described below to provide examples of each required implementation. Any embodiment described below does not limit any claimed embodiment, and any claimed embodiment may include processes or devices other than those described below. The claimed embodiments are not limited to devices or processes having all of the features of any one device or process described below, nor to features common to multiple or all devices described below.

[0044]This solution provides a microwave sensor corresponding to a split ring resonator (SRR). In food safety testing and quality control, sensors are used to detect impurities in liquid samples to achieve real-time detection. There is a microwave circuit for analyzing the microwave signal reflected from the sens...

Embodiment 2

[0061] Such as image 3 As shown, this solution provides a schematic diagram of a microwave signal processing system. The system consists of three main subsystems, a combiner, a coupler and an amplitude and phase detector.

[0062] The specific microwave signal processing system consists of three main components, including the microcontroller of the PLL synthesizer, the directional coupler and the gain detector. A microcontroller is used to control the generation of microwave signals and collect amplitude and phase difference data from the amplitude-phase detector.

[0063] Microcontroller, the microcontroller includes the PLL synthesizer, the microcontroller controls the PLL synthesizer, data acquisition and communication with the PC. Here you can choose atm328p or ARM32 microcontroller;

[0064] A directional coupler, here a directional coupler is a two-way coupler, extracts the forward and backward microwave signals and sends them to a gain detector. The SYBD-16-272HP+ ...

Embodiment 3

[0072] Based on the system of Example 2, the corresponding microwave induction measurement method can be designed to be compatible with the lab-on-a-chip (LOC) method. Methods as below:

[0073] In the conventional detection, the device under test, that is, the microwave sensor is set in the liquid under test for detection.

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Abstract

The invention, which belongs to the field of microwave systems, discloses a microwave sensor, a microwave signal processing system and a detection method thereof, thereby solving problems of high manufacturing cost and high manufacturing difficulty of the existing microwave sensor made based on the oft lithography technology in the prior art. The microwave sensor made based on a PCB has the highereconomic effect than the glass-based microwave sensor and is suitable for mass production. The sensor and system are easy to combine with a microfluidic channel and capillary tube. And thus the microwave sensor, the microwave signal processing system and the detection method thereof have the broad application prospects in fields of component analysis in food and beverage production and pathogen detection in the food and drinking water. Besides, the sensor and the system can be made simply; the detection is accurate; and the cost is reduced substantially.

Description

technical field [0001] The invention belongs to the field of microwave systems, and more specifically relates to a microwave sensor, a microwave signal processing system and a detection method. Background technique [0002] Microwave sounding is a remote sensing technique that has the potential for a wide range of applications from life sciences to the food industry. Existing microwave sensors can be fabricated based on soft lithography. Different types of microwave sensors exist including coaxial probe method, transmission line method, free space method and resonant cavity method. Among these methods, the resonance method has received more attention because it can work at lower frequencies and requires a smaller sample size. A split-ring resonator (SRR, Split-ringresonator) is a microwave resonator. Compared with traditional resonators, a split-ring resonator can significantly reduce the size of the resonator, making the design and manufacture of the resonator more flexib...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N22/00
CPCG01N22/00
Inventor 任丽青毛诗浓王禹浪陈飞
Owner 康特卫普技术有限公司
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