Temperature control type electro-acoustical pulse-method space charge measuring device

Abstract

The invention discloses a temperature control type electro-acoustical pulse-method space charge measuring device. The temperature control type electro-acoustical pulse-method space charge measuring device comprises a direct-current voltage source inputting device for exerting direct-current voltage on the first end face of a measured sample, a pulse voltage inputting device for exerting pulse voltage on the first end face of the measured sample, a metal electrode in contact with the second end face of the measured sample, a temperature regulation and control unit for conducting temperature regulation and control on at least one of the first end face and the second end face of the measured sample, a piezoelectric sensor, a piezoelectric sensor temperature protection unit for regulating and controlling the working temperature of the piezoelectric sensor, and a signal outputting unit for outputting data converted by the piezoelectric sensor. The temperature control type electro-acoustical pulse-method space charge measuring device has the following advantages that a wide-temperature-range regulation and control function, a temperature gradient regulation and control function and a quantitative regulation and control function of multi-physical-field coupling conditions can be achieved, further has the advantages of being small in size and adopting high-voltage-resistance electrode structure design, can meet the measurement demands of insulation materials different in thickness and is simple to manufacture and convenient to operate.

Description

technical field [0001] The invention relates to the technical field of performance testing of solid dielectric materials, in particular to a temperature-controlled electroacoustic pulse method space charge measuring device. Background technique [0002] In recent years, with the great progress of space charge measurement technology, the study of solid dielectric space charge has become a research hotspot in the field of high voltage insulation at home and abroad. Space charge measurement technology is the basis of space charge research. The development of space charge measurement technology and the study of electrical properties of dielectric materials are mutually promoted. Space charge measurement technology can be used in the study of performance parameters such as carrier mobility and trap depth in dielectrics, and has played an important role in the development and evaluation of dielectric materials. [0003] With the continuous advancement of UHVDC power transmission...

AI Technical Summary

Problems solved by technology

However, there are no thin-film products available yet, and individual research groups in Japan have prepared small batches of micron-sized LiNbO through their own research and development. 3 Piezoelectric thin films, and preliminary applications

Images