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Main Functions and Technical Indexes of ASMB3-168 Residual Stress Detector

  • Source: Unknown
  • Date: 2022-11-30
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1、 Overview
ASMB3-16/8 is a static resistance strain gauge with high performance of the same series. It is used together with the company's special computer software to measure static strain, stress, residual stress and thermocouple temperature. It can also measure voltage, current, displacement, pressure, temperature and other static physical signals with the use of Sigma's special adapter. The A/D, CPU, memory, communication and other chips used in the strain gauge as well as the precision resistance of the bridge are selected from the international top electronic device manufacturers. Both the schematic design and the layout and wiring of the components on the circuit board have fully considered the temperature, humidity, vibration and other factors, as well as the impact of electromagnetic interference such as static electricity, pulse groups, electromagnetic radiation, etc, It has also carried out strict safety regulations tests such as leakage current, insulation grade, insulation strength, etc., so it has high measurement accuracy, good linearity, small temperature drift, and can work reliably for a long time. It can be widely used in the comprehensive test of physical quantities such as strain, stress, displacement, pressure, etc. in industrial sites, enterprise research and development test centers, and university teaching experiments.
 
2、 Main functions
1. Measure the static or slowly changing strain and stress of various linear elastic materials, such as steel, cast iron, copper and its alloy, aluminum and its alloy, titanium alloy, magnesium alloy, rock, concrete, composite materials, plants, plastics, rubber, etc.
2. Measure the internal residual stress of various isotropic elastic-plastic materials (generated by extrusion, welding, casting, machining, etc.), such as steel, cast iron, copper and its alloys, aluminum and its alloys, titanium alloys, magnesium alloys, rocks, concrete, plastics, rubber, etc., and remove the system error caused by hole drilling for measuring the residual stress.
3. It can measure various physical signals
(1) Primary direct measurement signal
a. Basic signal: strain signal, differential voltage signal
b. Extended signals: current, pressure, force, load, torque, flow, temperature (thermal resistance, thermocouple, or other temperature sensors), displacement, speed and other physical signals (thermocouples can be directly connected to the strain gauge, and the voltage or current output signals of other sensors are connected to the strain gauge through the signal adapter)
(2) Secondary calculation generates signal
Stress signal, residual stress signal, and any virtual signal generated from one or more direct measurement signals (through various complex advanced function operations in the software).
4. Main functions of computer software
(1) The data of all direct measured signals can be saved in real time
(2) Data of all measured physical signals are displayed in table form in real time
(3) Real time waveform display of all measured physical signals
a. Curve of signal changing with sampling times
b. Curve of signal change with time
c. X-Y curve of signal Y changing with signal X
d. Vibration mode diagram of measured workpiece with time
(4) Powerful post event data playback, data processing, data analysis, graphics processing and other functions.
(5) The data import and export function can import txt text and csv files, and export txt text, tdms files, csv files, Excel tables and other data format files for easy viewing and further processing.
 
3、 Application field
1. Mechanical engineering and manufacturing equipment: strain, stress and displacement test on the force arm and other parts of construction machinery such as cranes, excavators, cement pump trucks, etc; Comprehensive test of pressure, displacement, temperature, strain and stress of oil cylinder; Residual stress test of machine tool guide.
2. High speed railway, automobile, ship and other traffic equipment: comprehensive test of pressure, temperature and strain stress of engine and reducer; Strain and stress test of vehicle body, wheel axle, high-voltage transmission bow and other parts.
3. Power engineering: strength test of power plant equipment, such as overall strength test of nuclear power plant containment; Strain and stress test of turbine shaft and blade; Comprehensive test of strain stress, temperature and pressure of steam pipeline after heating.
4. Civil construction and water conservancy engineering: static strain stress test of building structure; Stress monitoring of steel structure roof of large stadiums and gymnasiums during removal and installation of supports.
5. Bridges and roads: static load strength test of large steel structure bridges and structural stress test of road, culvert and tunnel works.
6. Measurement of material parameters: measurement of elastic modulus, Poisson's ratio, residual stress release coefficient A and B of various metal materials.
7. Metallurgy, petroleum and chemical industry: thermal stress test on the surface of ingot mold; Pressure, strain and stress test of oil tank, pressure vessel and pipeline.
 
four . Technical indicators
1. ADC resolution: 24 bits
2. ADC type: Sigma Delta
3. Communication mode between strain gauge and computer: Ethernet test signal channel number: 16/8 channels each, multiple ASMB3-16/8 strain gauges can be connected to a computer through the switch and work at the same time
4. Each channel can measure any physical signal
5. Signal sampling rate per channel fs (Samples/second): 1, 2, 5, 10, 20, 50, 100, 200, 500
6. Technical indicators when testing the following three basic signals (measured after half an hour of warm-up)
(1) Strain signal
a. Bridge excitation power supply (V): 2.5
b. Bridge connection mode: 1/4 bridge, half bridge public compensation, half bridge one-to-one compensation, half bridge without transverse effect, half bridge with transverse effect, full bridge without transverse effect, full bridge with transverse effect, original strain
c. Strain gauge resistance (Ω): 60, 120, 350, 700, 1000
d. Balance range of bridge (Ω): resistance of strain gauge × ± 1%
e. Strain measurement range optional（ με）： ± 1920000, ± 960000, ± 480000, ± 240000, ± 120000, ± 60000 (default value), ± 30000, ± 15000
f. Non linear: less than 0.02%
g. Strain measurement resolution（ με）： 0.1, 0.5, 1 (optional)
h. Strain display resolution（ μ ε）： 0.1、0.2、0.5、1、2、5、10
 

That's it Stress meter Supplier - Dongyi Seiko's sharing of "Main Functions and Technical Indexes of ASMB3-168 Residual Stress Tester".
The glass surface stress meter is used to check the size and distribution of stress in transparent objects. It is not only widely used in optical glass, optical instruments, glass products, plastic products and other industries, but also plays an important role in the inspection of safety explosion-proof indicators of building materials, lamps, pharmaceuticals, beverages, handicrafts, and also has many applications in the fields of crystal jewelry production, geology and minerals, and materials science. At the same time, the surface stress instrument provided by Dongyi Seiko is also an ideal teaching experimental equipment for colleges and universities.

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