DTM-II The Method Of Dynamic Elastic Modulus Tester
(resonance method)
1.Overview,
For a certain object, there is an inherent resonance frequency. When the object's size and material fixed, The object of the resonance frequency can only be affected by its density, The strength of the object is associated with its density If able to measure the resonant frequency of the object, the strength of the object can be calculated by The Strength Theory. This instrument is measuring object resonance frequency to calculate the elastic modulus of the instrument. Instrument can measure the ceramic, graphite, glass, plastic, metal materials, etc.And it widely used in various production enterprises, scientific research institutions, quality inspection departments. Instrument reference standard: GB/T3074.2-2008 "the graphite electrode elastic modulus determination method"、B/T5594 young's modulus of elasticity test method and GB/T 2105, GB22315-2105 metal material elastic modulus test methods and so on.
The instrument uses the import data acquisition control card,And computer control, testing, calculating and generating reports the whole process of automation..
2.The main technical indicators
1. The frequency measurement range: 100 hz to 50 kHz
2. The frequency resolution: 0.01 Hz
3. The measurement error: < 0.5%
4. Test temperature: room temperature.
(Can satisfy the customer requirement matching at room temperature to 1000 ℃ high temperature detection, cost extra. another fee)
5. The environmental conditions: 0 ~ 40 ℃, relative humidity of < 90%.
6. Power supply: AC220V plus or minus 10%, 50 hz.
7. Sample size: 120-180 mm in length, the columns, round pipe material, diameter (od) of 4-30 mm, rectangular sample, thickness of 1-4 mm, width is 5 to 10 mm.
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 connecting cable, one set of software and one set of desktop computer
Note: support type or suspension type test is optional.
