Detection device and method of complex impedance spectroscopy
A detection device and technology of complex impedance spectroscopy, which is applied in the field of detection devices of complex impedance spectroscopy, can solve problems such as long measurement time and poor connection reliability, and achieve the effects of reducing time, improving measurement accuracy, and shortening the measurement cycle
Active Publication Date: 2017-12-26
XIANGTAN UNIV
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, due to the poor reliability of the connection between the sample and the electrode, the above method takes two to three days to stabilize the voltage signal, resulting in a long measurement time, and the structure and properties of the sample will change due to long-term exposure to high temperature environments. The device can only measure complex impedance spectra of samples below 1000°C
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0032] In order to make the objectives, technical solutions, and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with specific embodiments and with reference to the accompanying drawings. It should be understood that these descriptions are only exemplary and not intended to limit the scope of the present invention. In addition, in the following description, descriptions of well-known structures and technologies are omitted to avoid unnecessarily obscuring the concept of the present invention.
[0033] With the development of electrochemical analysis technology, complex impedance spectroscopy has gradually become an important analysis method for the evolution of the microstructure of solid materials. Since the electrical conductivity and permittivity of materials are usually a function of temperature, and most materials exhibit better electrical conductivity at high temperatures, the realization of complex...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a complex impedance spectrum detection device and a method thereof. The detection device comprises: a sample chamber, a graphite electrode, a mass block, a heat insulation brick, a sample chamber sealing cover, a high temperature resistance heating system, a thermocouple, a temperature control device, shielding gas supply system, cooling system and complex impedance spectroscopy measuring instrument. During the high-temperature complex impedance spectroscopy test, the graphite electrode is connected to the complex impedance spectroscopy measuring instrument, and the temperature and oxygen atmosphere of the sample chamber are controlled by the high-temperature resistance heating system and the protective gas supply system, so as to realize the high-temperature complex impedance spectroscopy measurement and prevent the samples from being exposed during the test. , Electrode oxidation, the cooling system is used to reduce the temperature of the device, especially the furnace wall. The invention can realize rapid measurement and microstructure analysis of complex impedance of solid materials in the temperature range from normal temperature to 1500°C, and can realize precise control of temperature and atmosphere, so that the measurement accuracy is greatly improved, and it is a complex impedance spectrum of solid material microstructure evolution Characterization provides a good test bed.
Description
Technical field [0001] The invention relates to the field of complex impedance spectroscopy detection of material microstructures, in particular to a detection device and method for complex impedance spectroscopy of the evolution of solid material microstructures. Background technique [0002] In the 1950s, Delahay discussed theoretically and systematically the issue of studying the dynamics of electrochemical processes by means of communication. In the early 1960s, Dutch physical chemist Sluyters realized the application of AC impedance spectroscopy in the research of electrochemical processes in experiments. After decades of development, the theoretical development of complex impedance spectroscopy detection has been mature, and its application is also extremely wide. In addition to electrochemistry, complex impedance spectroscopy detection has a wide range of applications in the research of materials and devices. It can be used to study materials The evolution of grain bounda...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01R27/02
Inventor 杨丽李郴飞周益春朱旺蔡灿英
Owner XIANGTAN UNIV