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Main Functions and Technical Indexes of ASMB4-32168 Residual Stress Detector

  • Source: Unknown
  • Date: November 30, 2021
  • Number of views: one hundred and fifty
1、 Overview
The ASMB4-32/16/8 static strain gauge is a static strain gauge with 32, 16 and 8 channels in the same series. They must be used together with the company's special computer software to measure static strain, stress and residual stress. 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 on leakage current, insulation grade, insulation strength, etc., so it has high measurement accuracy, good linearity, small temperature drift, can work for a long time, safely and reliably, and can be widely and safely applied to strain and stress tests 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 alloys, aluminum 2. Measure the internal residual stress of various isotropic elastoplastic 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; It can also remove the systematic error caused by the hole drilling for measuring residual stress.
3. It can measure various physical signals
(1) Primary direct measurement signal: strain signal
(2) Secondary calculation generates signals: stress signals, residual stress signals, and arbitrary virtual signals generated from one or more primary strain signals (using various complex advanced functions 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, one computer can be connected to more than one ASMB4 strain gauge through the switch
4. Number of test signal channels: 32, 16, 8 channels/set. Multiple ASMB4 strain gauges can be connected to a computer to work at the same time. Take ASM B4-32 as an example: 10 strain rosettes for stress measurement can be connected at the same time to automatically inspect and monitor the stress and its change at 10 points; Or 32 resistance strain gauges can be connected to automatically patrol 32 channels.
5. Each channel can set parameters independently
6. Signal sampling rate per channel fs (Samples/second): 1, 2, 5, 10, 20, 50, 100, 250, 500
7. Technical indicators of strain signal (measured after half an hour of warm-up)
a. Bridge excitation power supply (V): 2.5
b. Bridge connection mode: half bridge public compensation (ASMB4-32:8 channels share one compensating strain gauge, and ASMB4-16/8:4 channels share one compensating strain gauge)
c. The sensitivity of the strain gauge can be set and stored inside the instrument
d. Strain gauge resistance (Ω): 60, 120, 350, 700, 1000
e. Long wire compensation can be used to remove system error caused by wire resistance
f. Balance range of bridge (Ω): resistance of strain gauge × ± 1%
g. Strain measurement range（ με）： ± 1920000, ± 960000, ± 480000, ± 240000, ± 120000, ± 60000 (default value), ± 30000, ± 15000
h. Non linear: less than 0.02%
  i. Strain measurement resolution（ με）： 0.1, 0.5, 1 (optional)
j. Strain display resolution（ με）： 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 ASMB4-32168 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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