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描述
DTM-II弹性模量试验机
总结
For certain objects, there is a natural resonance frequency. When the volume and material of the object are certain, the resonance frequency of the object is only related to its density. The strength of an object is related to its density, so the natural vibration frequency of the object determines the strength of the object. If the resonant frequency of the object can be measured, the strength of the object can be calculated according to the strength theory. This instrument is to measure the resonance frequency of the object and calculate the elastic modulus of the object. It can measure ceramics, graphite, 玻璃, 塑料, metal materials, ETC. It is widely used in production enterprises, 科研单位, colleges and universities, quality inspection departments, ETC. 仪器参考标准: GB/ T30742-2008 “Graphite electrode elastic modulus determination method” GB/T5594 Young’s elastic modulus test method and GB/T 2105,GB22315-2008 metal material elastic modulus test method and so on.
The instrument adopts imported data acquisition control card and computer control to realize the automation of the whole process of testing, calculation and reporting.
DTM-II弹性模量试验机
技术指数
1. Frequency measurement range: 100Hz ~ 50kHz;
2. Frequency resolution: 0.01赫兹;
3. 测量误差: < 0.5%;
4. Test temperature: equipped with sample ambient temperature controller, can be measured at various temperatures. (can be customized according to user requirements);
5. Environmental conditions: 0 ~ 40℃, 相对湿度 <90%.
6. 电源: AC220V±10%, 50赫兹
工作准则
Computer controlled data acquisition control card output frequency from small to large sine wave signal to the transmitting probe, transmitting the oscillation of the transmitting probe to the specimen, forcing the specimen to carry out mechanical vibration, when the transmitting frequency is the same as the natural frequency of the specimen, resonance will occur, at this time, the vibration amplitude of the specimen will produce an extreme value. Through the receiving sensor probe is transferred to the data acquisition control card and then back to the computer, the computer scans according to the frequency, finds the resonance frequency, and then calculates the elastic modulus according to the weight and outline size of the sample input to the computer.
Instrument configuration: including one DTM-II test host (including imported data acquisition card), one set of exciter and receiver, one set of test rack and connection line, one set of software, 一台台式计算机.
笔记: Support or suspension test two test methods are optional.
