Combined multi-point deflectometer and method for measuring deflection

A deflection meter and combined technology, applied in the direction of measuring device, elastic test, machine/structural component test, etc., can solve the problems of large volume, high cost, inconvenient to carry, etc., achieve long service life, convenient assembly and disassembly , Easy to carry with small size and assemble in the field

Inactive Publication Date: 2012-01-18
舒小娟
View PDF5 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage is that if it is used for multi-point measurement, the system is bul

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Combined multi-point deflectometer and method for measuring deflection
  • Combined multi-point deflectometer and method for measuring deflection

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0022] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific illustrations.

[0023] see figure 1 In an embodiment of a combined multi-point deflection gauge, a level bubble 5 for ensuring a horizontal position is installed on the side of the hard water pipe 2, and at the same time, a watertight joint 8 is installed at the bottom of the hard water pipe 2 , the watertight joint 8 is connected to the hose 4 on the side, for connecting other pipe bodies.

[0024] A float 3 is arranged inside the hard water pipe 2 of this embodiment, and the upper part of the float 3 is connected to the elastic deformation gauge 1 through the pipe top fixing cover 6 through a spring. At the same time, a hole structure is also opened in the pipe top fixing cover 6 7. Used for water intake and ventilation.

[0025] When the present invention ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a combined multi-point deflectometer and a method for measuring the deflection. The novel multi-point deflectometer which can be used for high-precision displacement measurement by a tee-joint water pipe leveling principle and a mechanical elastic deformation test principle comprises a plurality of soft water pipes and hard vertical tee-joint water pipes, wherein the soft water pipes and hard vertical tee-joint water pipes can be spliced at will and are mutually communicated; the hard water pipes are provided with bubbles to ensure that the test pipes are leveled during point testing; the ends of the soft water pipes and the joint sections of the hard water pipes are connected by joints which are easy to splice and have good water tightness; the hard water pipes can be lengthened by section; and an upper section is vertically provided with an elastic deformation gauge of which the lower end is provided with a floater from the top. According to difference before and after structure deformation, the water level in each hard water pipe arranged on the specific measurement point on the structure is still kept horizontal, change happens in the pipe relatively to the horizontal water level, the floater lifts or lowers, buoyancy borne by the combined multi-point deflectometer is changed to cause the reading of the elastic deformation gauge to change, and a reading precision is high.

Description

technical field [0001] The invention relates to a novel combined multi-point vertical deflection meter which can be used to measure the vertical deflection of a structure during a bridge load test and a method for measuring the deflection. Background technique [0002] At present, an important content in the bridge load test is the measurement of the deformation (deflection) of the structure under load, which reflects the stiffness characteristics of the structure. There are the following methods for deflection testing of bridges: [0003] 1. Level method or total station method. The principle is to pre-arrange several fixed measuring points on the structure, place one point on a fixed point of the structure or another point on a non-deformable point outside the structure, and then according to the principle of leveling, after each loading, use The elevation change value of each point is measured by the tower ruler, which is used to calculate the deflection of the structur...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): G01B13/24G01M5/00
Inventor 舒小娟沈明燕肖洋陈杰东
Owner 舒小娟
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap