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Constant temperature and humidity chamber with automatic weighing function

A constant temperature and humidity box and automatic weighing technology, which is applied in the field of constant temperature and humidity box, can solve the problems such as the change of filter membrane weight, and achieve the effect of improving accuracy

Inactive Publication Date: 2022-02-15
SHANDONG UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a constant temperature and humidity box with automatic weighing function, which solves the problem in the prior art that the weight of the filter membrane changes due to moisture and particles in the air when the filter membrane is weighed

Method used

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  • Constant temperature and humidity chamber with automatic weighing function
  • Constant temperature and humidity chamber with automatic weighing function
  • Constant temperature and humidity chamber with automatic weighing function

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as Figure 1-11 As shown, a constant temperature and humidity box with automatic weighing function includes a box body 1 and a compressor. The box body 1 is provided with a temperature control system and a humidity control system. The temperature control system is connected to the compressor. Inside the box body 1 Be provided with placement frame 2, mechanical arm 27, balance, barcode scanner 28, balance is provided with weighing frame, mechanical arm 27 comprises rotating shaft 5 and the swing arm that is arranged on rotating shaft 5, and swinging arm can rotate around rotating shaft 5 Rotate and can move up and down relative to the placement frame 2, the placement frame 2 is provided with a gap for the swing arm to pass through, and the weighing frame is provided with a gap for the swing arm to pass through.

[0032] The mechanical arm 27 includes a frame 10, the frame 10 is slidably connected with a first slider 12, the first slider 12 is rotatably connected wit...

Embodiment 2

[0044] The difference between this embodiment and Embodiment 1 is that the filter membrane identification device is an RFID device.

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PUM

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Abstract

The invention relates to the field of air particulate matter detecting and weighing equipment, and solves the problem of weight change of a filter membrane caused by moisture and particulate matters in air when the filter membrane is weighed in the prior art. The constant temperature and humidity chamber with the automatic weighing function comprises a chamber body and a compressor, a temperature control system and a humidity control system are arranged in the chamber body, the temperature control system is communicated with the compressor, a placement frame, a mechanical arm, a balance and a filter membrane recognition device are arranged in the chamber body, and a weighing frame is arranged on the balance. The mechanical arm comprises a rotating shaft and a swinging arm arranged on the rotating shaft, the swinging arm can rotate around the rotating shaft and can move up and down relative to the placement frame, a notch for the swinging arm to penetrate through is formed in the placement frame, and a notch for the swinging arm to penetrate through is formed in the weighing frame. The movement of the filter membrane is completed by the mechanical arm, and manual box opening operation is not needed, so that the change of the weight of the filter membrane caused by moisture and particulate matters in the air is avoided, and the detection precision is improved.

Description

technical field [0001] The invention relates to the field of air particle detection and weighing equipment, in particular to a constant temperature and humidity box with automatic weighing function. Background technique [0002] The detection methods for air particles include light projection method, laser backscattering method, charge method, β-ray absorption method, filter weighing method, etc. The basic principle of the filter weighing method is to use a filter membrane to filter a certain volume of air, place the filter membrane in a constant temperature and humidity box for a period of time, then weigh it, and calculate the concentration of air particles according to the quality of the filter membrane. The existing constant temperature and humidity box does not have a weighing function. After the filter membrane is placed in the constant temperature and humidity box for a period of time, it is taken out by the staff and weighed with a balance. The moisture and particle...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N5/02G01G19/52
CPCG01N5/02G01G19/52
Inventor 高捷李学庆郭波周在伟杨垒张朝马嫣孙华周宁宁何云馨
Owner SHANDONG UNIV