Dynamic stress loading and synchronous strain measuring device for neutron scattering experiment

Abstract

The invention discloses a dynamic stress loading and synchronous strain measuring device for a neutron scattering experiment. The device comprises a dynamic stress loading assembly, a synchronous strain measurement assembly and a guide rod assembly, the dynamic stress loading assembly comprises a first dynamic stress loading motor and a second dynamic stress loading motor; the guide rod assembly comprises a plurality of parallel guide rods, the rear ends of the two motors are fixedly mounted on the two spring plates respectively, and the movable ends of the two motors are oppositely arranged and slidably mounted on the guide rods; the movable ends of the two motors are respectively provided with a clamp; the synchronous strain measurement assembly comprises a stress sensor and a strain gauge which are respectively installed on the two clamps. According to the device, the two stress loading motors which are oppositely arranged are adopted, bidirectional dynamic stress loading is achieved, the structure is simple, use is convenient, the device can be universally used on neutron scattering spectrometers of different neutron sources, and the requirement for the use environment in an in-situ neutron scattering experiment is met; prestress is applied through the spring plate, and deformation in the stress loading direction is avoided.

Description

technical field [0001] The present application relates to the field of auxiliary equipment for neutron scattering experiments, in particular to a device for dynamic stress loading and simultaneous strain measurement for neutron scattering experiments. Background technique [0002] Spallation neutron sources have different sample environment requirements when performing neutron scattering experiments; one of them is that dynamic stress loading and simultaneous strain measurement of samples are required during neutron scattering experiments. Through dynamic stress loading and simultaneous strain measurement, it can be used to measure the microstructure change signals of samples under different stresses and different frequencies, and its simultaneous macroscopic strain changes to obtain stress-strain-structure data. [0003] With the development of science and technology, higher requirements are put forward for the bearing capacity and reliability of carrier mechanical parts in...

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Problems solved by technology

At present, the literature or reports on the dynamic stress loading and synchronous strain measurement device of neutron scattering have not involved the relevant content of this device

Moreover, even if there are similar related devices, they are bulky, difficult to disassemble and transport, and cannot be used universally on neutron scattering spectrometers of different neutron sources

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