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Centrifugal type micro-Newton insect friction force on-line real-time test system and test method

A real-time testing, micro-new level technology, applied in force/torque/power measuring instruments, measuring devices, instruments, etc., can solve problems such as low precision, reduced image clarity, difficulty in satisfying insect adhesion, friction, etc., to achieve The effects of stable acquisition, improved accuracy, and improved test accuracy

Pending Publication Date: 2017-11-10
HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

This device can test the adhesion between objects, but due to the problems in its overall structure, it is easy to transmit the vibration of the motor to the sample to be tested and install the fixing device, resulting in a decrease in the clarity of the image collected by the high-speed camera, which in turn affects the radius of centrifugal motion Accurate Acquisition of Information
In addition, the rotational speed information of the centrifugal motion of the device is obtained by the speed sensor installed on the output shaft of the motor, which has low accuracy and significantly affects the final test accuracy of the adhesion force
The force measurement accuracy of this device is 0.1N level, which is difficult to meet the nano-new level adhesion and friction force produced by insects on the material surface

Method used

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  • Centrifugal type micro-Newton insect friction force on-line real-time test system and test method
  • Centrifugal type micro-Newton insect friction force on-line real-time test system and test method
  • Centrifugal type micro-Newton insect friction force on-line real-time test system and test method

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Embodiment Construction

[0041] In order to make the purpose, technical solution and advantages of the present invention more clear, a centrifugal microbull level insect friction online real-time testing system and testing method related to the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are exemplary only, and are not intended to limit the scope of the present invention.

[0042] According to the knowledge of physics, there is a formula for calculating centrifugal force ,Right now , where m represents the mass of the object in centrifugal motion, kg; r represents the radius of the object in centrifugal motion, m; n represents the rotational speed of the object in centrifugal motion, r / min. Therefore, by obtaining the three parameters of mass m, radius r of centrifugal motion, and rotational speed n of centrifugal motion, the centrifugal force tha...

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Abstract

The invention discloses a centrifugal type micro-Newton insect friction force on-line real-time test system and test method. By adoption of a ball screw and a stepping motor structure, displacement of a high-speed video imaging system can be precisely controlled, so that position information of a tested insect on a test platform can be clearly obtained, that is, the position information is radius information of centrifugal motion; by adoption of a rotating speed sensor matched with the test platform, rotating speed information of the test platform can be accurately and highly precisely obtained, and the test precision and the accuracy of the system are greatly improved; by cooperation with an image analysis processing module, a rotating speed information analysis module, a motor rotating speed control module and a centrifugal force real-time calculation and display module, on-line real-time test and displaying of centrifugal force (friction force and adhesion force) can be realized.

Description

technical field [0001] The invention relates to the technical field of friction force testing, in particular to a centrifugal force measuring method aimed at testing the adhesion force or friction force of insects, and the test accuracy can reach the micro-new level, which can be tested and displayed online in real time, and the test accuracy is higher System and test method. Background technique [0002] In the process of studying mechanized slip capture to control agricultural disaster insects, it is necessary to test the mechanical data such as adhesion and friction of small insects such as beetles, moths, and ants on the surface of the material. If the force sensor is used as the core Conventional testing techniques and methods for components are difficult to achieve accurate testing of micro-forces at the millinew level. The core unit used in the currently known force measuring system is the force sensor, and the measuring range and resolution of the sensor directly de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N19/02G01N19/04G01L5/00
CPCG01L5/0028G01N19/02G01N19/04
Inventor 王立新
Owner HEBEI UNIVERSITY OF SCIENCE AND TECHNOLOGY
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