Mass sensor based on elastic mass system and method for measuring mass thereof

A quality sensor and quality system technology, applied in measurement devices, instruments, scientific instruments, etc., can solve the problems of cumbersome process, lack of timely data validity, etc.

Inactive Publication Date: 2006-04-05
ANHUI INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

This method is cumbersome, not timely and has poor data validity

Method used

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  • Mass sensor based on elastic mass system and method for measuring mass thereof
  • Mass sensor based on elastic mass system and method for measuring mass thereof
  • Mass sensor based on elastic mass system and method for measuring mass thereof

Examples

Experimental program
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Embodiment Construction

[0026] see figure 1 , figure 2 .

[0027] The oscillating tube of the present invention is a hollow conical tube, its cone bottom 4 is fixed on the frame 3, a filter membrane 1 is fixed on the cone tip 2, and two magnets are installed on both sides of the neck of the conical tube at 1 cm from the top. Steel 5. The hollow tapered tube is a hollow thin-walled tube made of quartz, glass, and ceramics. A platform collar is arranged on the frame 3, which is pressed on the edge of the bottom end of the tapered pipe, and a spring 6 is installed between the platform collar and the frame. Can act as a buffer.

[0028] The method of measuring the quality of tiny particles suspended in the gas by using the oscillating tube is: install an electromagnet and a linear Hall device at about 1 cm on both sides of the magnetic steel; The natural frequency oscillates, and the linear Hall device senses the change signal of the magnetic field strength at the same frequency as the hollow conic...

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Abstract

The invention discloses a quality sensor and measuring method based on the spring quality system. The conical bottom end of the hollow conical pipe is fixed on the frame; a filter is fixed on the conical snap end; the two magnetic steels are fixed on the two neck sides of the conical pipe. The measuring method is that it separately fixes an electric magnetic and a linear Hall part on the two sides of the magnetic steel; it measures the start oscillation frequency f0 of the hollow conical pipe and sampling air finishing frequency f1, which can compute the quality changing value dm of the oscillation body which is the particle quality on the filter.

Description

technical field [0001] The mass sensor based on the elastic mass system is used in the automatic monitoring system of atmospheric aerosol particles and other mass measurement systems. Background technique [0002] The measurement of the aerosol content in the air by traditional environmental monitoring instruments is to use a filter membrane to take samples and then take them into the laboratory for weighing. This method is cumbersome, not timely and has poor data validity. The invention is applied in the air aerosol monitoring instrument and completely overcomes the shortcomings of the traditional method. Contents of the invention [0003] The object of the present invention is to provide a mass sensor based on an elastic mass system. [0004] Technical scheme of the present invention is as follows: [0005] The quality sensor uses a hollow tapered glass tube, the bottom of the cone is fixed on the frame, the tip of the cone is a free end, which can oscillate freely, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N33/00G01N19/00
Inventor 陆钒刘建国董凤忠陆亦怀王亚萍詹锴陈军高闵光连悦张天舒
Owner ANHUI INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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