The patent number you wrote is wrong. After checking, it may be the following one:
Application (patent) number: 200520029812.5 Application date: 2005.01.17
Name: Microwave humidity measurement probe
Public (announcement) number: CN2763802 Public (announcement) date: 2006.03.08
Main classification number: G01N23/04(2006.01)I Divisional case Original application number:
Classification number: G01N23/04(2006.01)I; G01N23/00(2006.01)I
Issue date: Priority:
Applicant (patent right): Zhang Xiuxiang
Address: 453003 Neighborhood Admissions Office Family Courtyard, No. 4, Development Zone, Xinxiang City, Henan Province
Inventor (designer): Zhang Xiuxiang International Applicant:
p>International announcement: Date of entry into the country:
Patent agency: Xinxiang Pingyuan Patent Co., Ltd. Agent: Shen Yuxi
Summary
The utility model is a microwave humidity measurement probe, which includes a waveguide, and is characterized in that: the two ends of a cylindrical resonant cavity are sealed with partitions, and the sealed resonant cavity forms a circulation area, and the partitions are opened with energy Holes that allow airflow to pass freely. The resonant cavity is measured using high-Q cavity microwave resonance perturbations. The utility model has the following effects: using a microwave humidity measurement probe, the resonant cavity starts by measuring the resonant frequency of the cavity and then determines the dielectric coefficient of the gas to be measured in the cavity. Through the functional relationship between the gas dielectric coefficient, air temperature, air pressure, and humidity, To achieve continuous measurement of gas humidity, a high-Q cavity is used as a humidity sensor. Because the electric field intensity on the inner surface is zero, it is not sensitive to dust and other impurities. It can avoid high-temperature damage and perform humidity measurements under high temperatures and harsh environments. .
Sovereign item
1. Microwave humidity measurement probe, which includes a waveguide, and is characterized in that: the two ends of the cylindrical resonant cavity are sealed with partitions, and the sealed The resonant cavity forms a flow area, and the partitions have holes that allow airflow to pass freely.