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Air ion static measuring method and air ion static measuring instrument

An air ion and measuring instrument technology, applied in the field of air ion measuring method and air ion measuring instrument, can solve the problems of excessive current drift and affecting measurement accuracy, and achieve the effects of high resolution, small randomness and reliable data

Inactive Publication Date: 2004-01-14
CHINA BUILDING MATERIALS ACAD +2
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Problems solved by technology

This method involves the measurement of tiny currents. Due to the interference of signal noise, the current drift is too large, which will affect its measurement accuracy.

Method used

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  • Air ion static measuring method and air ion static measuring instrument
  • Air ion static measuring method and air ion static measuring instrument

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Embodiment Construction

[0020] A kind of air ion static measurement method provided by the present invention, it is mainly to change the method for directly measuring the electric current of existing air ion measuring equipment into directly measuring the electric quantity on the capacitor pole plate, specifically: to the air ion collector The dipole plate is loaded with a certain voltage; the ions in the air in the air ion collector attenuate the voltage, that is, the amount of charge changes, and the speed of attenuation is determined by the ion concentration in the air; then the charge amount on the sensor changes through the charge scale Measurement is performed to obtain the measured ion concentration. Therefore, the shortcoming of inaccurate measurement existing in the method of directly measuring current is overcome, and the data display is stable and reliable.

[0021] The present invention also provides a static measuring instrument for air ions used in the above method, including an air ion...

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Abstract

The invention relates to an air ion static determination and an air ion static determinator, comprising air ionization collector, electric charge weigh, control circuit, computer and software system supporting measurement and data recording processing, wherein the electric charge weigh is used to isolate the air ionization collector and the computer acquisition circuit, the computer can monitor the electric quantity on the collector plate electrode. The invention can be used to monitor the ion concentration in the air continuously and assess the ability of air ion generation in the air for the negative ion material.

Description

technical field [0001] The invention relates to an air ion measuring method and an air ion measuring instrument, in particular to an air ion static measuring method and an air ion static measuring instrument. Background technique [0002] In 1889, German scientists Elster and Gertel discovered the existence of negative air ions, and in 1902, Ashamas and others affirmed the biological significance of the existence of air ions. The role of air negative ions has been recognized by the medical community. In addition to being beneficial to human health, it also has the functions of sterilization, dust removal and deodorization. The monitoring of air ions in the world usually uses a fan to make air pass through a parallel plate capacitor (i.e. air ion collector) at a certain flow rate, and a certain voltage is applied to the capacitor to allow the capacitor to capture air ions, and then detect the discharge current of the capacitor (or voltage) method to measure, as in the utilit...

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Application Information

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IPC IPC(8): G01N27/60G01N27/62
Inventor 冀志江王彦勋金宗哲梁金生王静隋同波白树军张连松
Owner CHINA BUILDING MATERIALS ACAD
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