Multi-window data collector for rock-soil mechanics testing

A data acquisition instrument and rock and soil mechanics technology, applied in the direction of instruments, measuring devices, signal transmission systems, etc., can solve the problems of not being able to display and collect in real time at the same time, and not being able to display strain displacement and pressure data in multiple windows

Inactive Publication Date: 2008-06-11
CHENGDU UNIVERSITY OF TECHNOLOGY
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But it cannot display and collect in real time at the same time, and cannot display strain, displacement and pressure data in multiple windows

Method used

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  • Multi-window data collector for rock-soil mechanics testing
  • Multi-window data collector for rock-soil mechanics testing
  • Multi-window data collector for rock-soil mechanics testing

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Embodiment Construction

[0030] The multi-window data acquisition instrument for rock and soil mechanics test is a comprehensive data acquisition instrument for multi-functional rock and soil mechanics test that integrates displacement, pressure and strain collection. It can complete the tensile, compressive, shear and point load of rocks. It is used for data collection of tests, soil deformation, shearing and other tests. It has four sets of LED display windows and one LCD display window. Combined with the switching button, 20 display windows can be switched and displayed. This machine has the characteristics of fast acquisition speed and high precision. It has a built-in lead-acid battery and a built-in battery management circuit. sensor and four strain input interfaces.

[0031] The instrument functions are as follows:

[0032] 1. MCU

[0033] The instrument uses three single-chip microcomputers:

[0034] 1. MSC1200, AD acquisition and debounce processing of stress and pressure, the collected da...

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PUM

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Abstract

The invention relates to a soil and rock mechanics feature test multi window data acquisition device. Four strain gages are sticking on the rock sample to form full bridge or half bridge output circuit that has four switches K1-K4. The output of every two bridge output circuit connects to the input end of an amplifier (5, 6). And the output end connects to the input of MCU (7). Two pressure sensors (8, 9) connect to power ground and connect to MCU (7). The displacement sensor connects to data working up chip (37) and signal transforming chip (18), which connects to signal transforming chip (20). The chip (20) connects to MCU (11). And MCU (11) connects to integration block (10) that is connected to 20 LED and key board, MCU (7), and MCU (12). MCU (11) and MCU (12) connect to LCD. The 20 LEDs forms four display window that each has five LEDs.

Description

Technical field: [0001] The present invention relates to rock and soil mechanics test equipment. Background technique: [0002] The material testing system in the existing rock and soil mechanics laboratory is used to test the physical and mechanical properties of various rocks under different loading conditions. The PC-based data acquisition system is used to record the test parameters with 8 channels. The acquired data Including strain, displacement, pressure, load, etc. But it cannot display and collect in real time at the same time, and cannot display strain, displacement and pressure data in multiple windows. Invention content: [0003] The purpose of the present invention is to provide a pressure, displacement and strain that can be displayed and collected in real time synchronously, and processed into an EXCEL format and sent to a computer for processing; the present invention is used to record test parameters as 12 channels; it has multiple windows, It is a multi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G08C19/02G08C19/00G01D21/02
Inventor 苏道刚黄润秋付小敏许强蔡国军王勇
Owner CHENGDU UNIVERSITY OF TECHNOLOGY
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