Contact type automatic ice and snow depth measuring method

A technology of contact measurement and automatic measurement, which is applied in the field of snow production and consumption monitoring and polar ice, can solve problems such as inability to determine timing and fixed points, heavy physical labor, and uncertain errors of physical detection technology, so as to solve uncertain error factors and carry Convenience and easy operation

Inactive Publication Date: 2003-10-15
DALIAN UNIV OF TECH
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AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a method for automatically and accurately measuring the thickness changes of ice and snow at a continuous fixed point under the conditions of wind, snow, humidity and low temperature in winter on the basis of the principle of direct drilling measurement technology; this method solves the heavy physical labor And the defect of not being able to determine the thickness of ice and snow at regular and fixed points also solves the defect of uncertain error factors in physical detection technology due to the influence of ice properties on temperature

Method used

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  • Contact type automatic ice and snow depth measuring method
  • Contact type automatic ice and snow depth measuring method
  • Contact type automatic ice and snow depth measuring method

Examples

Experimental program
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Effect test

Embodiment 1

[0016] The method of using the zero-torque speed sensor to realize the contact-type automatic measurement of the ice and snow thickness change process, the specific implementation steps are as follows:

[0017] 1) Use Nanjing Sunshine 12V DC motor (1) as the power to drive the gravity probe (2) and buoyancy probe (3) to move.

[0018] 2) Use 2 HICKEY position sending sensors (4) produced by Wuxi Hengchang Automatic Control Equipment Co., Ltd. to determine the position of the ball probing action.

[0019] 3) Use a HCZ-A zero-torque speed sensor (5) produced by Wuxi Hengchang Automatic Control Equipment Co., Ltd. to record the movement distance of the mechanical gear (6) from the ice and snow interface to the reference point position; the single-chip microcomputer has a correction distance value The ability, its scope is 0-55 millimeter; The distance of every tooth movement on the gear (6) is 1mm.

[0020] 4) Probing balls (2), (3) are connected with rotating wheel (8) by non-s...

Embodiment 2

[0027] The method of using the magnetic displacement sensor to realize the contact automatic measurement of the ice and snow thickness change process, the specific implementation steps are as follows:

[0028] 1) Use Nanjing Sunshine 12V DC motor (1) as the power to drive the gravity probe (2) and buoyancy probe (3) to move.

[0029] 2) Use 2 HICKEY position sending sensors (4) produced by Wuxi Hengchang Automatic Control Equipment Co., Ltd. to determine the position of the ball probing action.

[0030] 3) Use a magnetic displacement sensor (13) as a support rod; the magnetic ring (14) is sleeved on the magnetic displacement sensor and fixed on the detection plate (10), and moves with the detection plate; record the magnetic ring from the ice 1. The movement distance of the snow interface reaching the reference point position; the single-chip microcomputer has the ability to correct the distance value, and its range is 0-55 millimeters; the movement distance of each tooth of t...

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Abstract

The automatic ice and snow thickness contact measuring method belongs to ice and snow thickness variance monitoring technology. Two detecting boards are made to face-to-face move automatically and vertically, and the distance between the reference point and the surface of ice or snow is detected to determine the thickness variance of ice or snow. The sensor for measuring the moving distance ofdetecting boards is either rotation speed sensor or magnetostricctive displacement sensor. The stay time for the detecting boards on ice or snow on the ice or snow interface is at most 10 sec to avoid no freezing with the detecting boards staying in reference position in rest time. The interval between two times of automatic measurement is optional in 0-60 min. The present invention can perform automatic in-situ measurement.

Description

technical field [0001] The invention belongs to the technical fields of polar ice and snow generation and elimination monitoring technology, cold area hydrological measurement technology, cold area water conservancy project and marine engineering ice monitoring technology. Involves on-site automatic measurement and recording of ice and snow thickness changes. In particular, it relates to a method for contact-type automatic measurement of ice and snow thickness change processes. Background technique [0002] At present, there are several methods for measuring the thickness of ice and snow at home and abroad, which can be summarized into three categories: [0003] The first type of physical detection technology relies on the emitted electromagnetic waves, sound waves, etc. to penetrate the ice layer, and use the time when it returns to the receiver to convert the thickness of ice and snow. Therefore, the penetration speed is the key indicator, but because the properties of i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B5/06G01B7/06
Inventor 李志军张占海李广伟王永学
Owner DALIAN UNIV OF TECH
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