Measuring device for mechanoluminescent performance of luminescent material

Abstract

The invention relates to an apparatus for detecting mechanoluminescent performance of a luminescent material. The apparatus comprises a dark chamber, an objective table, an ultraviolet lamp, a pressure signal monitoring system, and an optical signal monitoring system; the dark chamber comprises an internal layer dark chamber and an external layer dark chamber, the internal layer dark chamber is placed at one side of the bottom of the external layer dark chamber, and the ultraviolet lamp is arranged in the external layer dark chamber and positioned over the internal layer dark chamber; the pressure transducer is arranged in the external layer dark chamber, and opposites a force application port over the external layer dark chamber, a pressure signal output port is arranged at an outer wallof the external layer dark chamber, and the pressure transducer, a pressure transmitter and the pressure signal output port are electrically connected in order; an objective table is arranged over theinternal layer dark chamber, a sample installation groove is arranged at the objective table, the sample installation groove and the force application port over the external layer dark chamber, and the pressure transducer are coaxially arranged. The apparatus has the advantages that simultaneous and synchronous monitoring is carried out, a pressure signal of mechanical excitation force and the generated optical signal are recorded, and the monitoring result is accurate. The apparatus belongs to the technical field of detection.

Description

technical field [0001] The invention belongs to the technical field of detection, and in particular relates to a detection device for the mechanoluminescence performance of a luminescent material. Background technique [0002] The mechanoluminescence performance means that the luminescent material emits light when it is subjected to mechanical forces such as impact, compression, friction, and cutting. The phenomenon of mechanoluminescence has been discovered more than 400 years ago. Many inorganic and organic compounds will emit light under the action of crushing or mechanical stress. These mechanoluminescent compounds include conductors, semiconductors and insulators. The mechanoluminescence phenomenon of materials has aroused great interest and attention of researchers in the fields of mechanical engineering, material fracture and earthquake prediction and monitoring, life science and medical diagnosis. When testing the mechanoluminescent properties of luminescent materia...

AI Technical Summary

Problems solved by technology

However, this cannot complete the excitation of the ultraviolet lamp conveniently and quickly, and the recording and monitoring of the test process are slow, and the force signal and the light signal cannot be displayed synchronously, which affects the monitoring results of the mechanoluminescence performance and limits its application to a certain extent.

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