Dynamic Method Elastic Modulus Tester Non-Destructive Dynamic
Elastic Modulus Analyzer
1.Description:
For a certain object, there exists an inherent resonant frequency.
When the volume and material of the object are fixed, the resonant
frequency of the object is only related to its density. The
strength of the object is related to its density, so the inherent
vibration frequency of the object determines its strength. If the
resonant frequency of the object can be measured, the strength of
the object can be calculated based on the strength theory. This
instrument is used to measure the resonant frequency of the object
and calculate its elastic modulus. It can be used to measure
ceramics, graphite, glass, plastics, metal materials, etc. It is
widely used in various production enterprises, research
institutions, universities, quality inspection departments, etc.
This instrument adopts imported data acquisition and control cards
and is controlled by a computer to achieve full automation in the
entire process of testing, calculation and report generation.
2.Standards:
GB/T3074.2-2008 "Method for Determining the Elastic Modulus of
Graphite Electrodes", GB/T5594 "Test Method for Young's Modulus",
and GB/T 2105, GB22315-2008 "Test Method for Elastic Modulus of
Metal Materials", etc.
This instrument adopts imported data acquisition and control cards
and is controlled by a computer to achieve full automation in the
entire process of testing, calculation and report generation.
3.Working principle
The computer-controlled data acquisition control card outputs a
sine wave signal with increasing frequency to the transmitting
probe. The oscillation of the transmitting probe is transmitted to
the sample, causing the sample to undergo mechanical vibration.
When the transmitting frequency is the same as the inherent
frequency of the sample, resonance will occur. At this time, the
amplitude of the sample's vibration will reach its maximum. The
vibration signal is transmitted from the receiving sensor probe to
the data acquisition control card and then back to the computer.
The computer scans the frequency and finds the resonance frequency.
Then, based on the sample weight and shape dimensions input into
the computer, the elastic modulus is calculated.
4.Configuration:
Including one LRDT-II test host (equipped with an imported data
acquisition card), one exciter and receiver set, one test stand and
connection cables set, one software package, and one desktop
computer.
5.Technical Parameter
