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Electrocaloric performance measuring device

A measuring device and electric card technology, which is applied in the field of electric card performance measurement of electric card materials, can solve problems such as no measuring device, and achieve the effects of avoiding measurement errors and improving accuracy and reliability

Active Publication Date: 2017-02-15
KUSN HISENSE ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] There are many theoretical methods for measuring the properties of electric card materials, but no mature measuring device has come out, so it is very necessary to propose a practical and reliable electric card measuring device

Method used

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Embodiment Construction

[0011] The electric card measuring device provided by the present invention is based on the second method in the direct method, that is, using thermal devices to directly measure the temperature change of the electric card material. The electronic card measuring device provided by the present invention will be described in detail below in conjunction with the accompanying drawings.

[0012] refer to figure 1 , the structural schematic diagram of the first embodiment of the electric card measuring device according to the present invention; the electric card measuring device includes a measuring chamber 100 for placing the material 23 to be tested, a temperature control system, a power supply 12 and a temperature sensor 21 . The temperature control system is used to heat or cool the air in the measurement chamber 100 and the material 23 to be tested to a preset measurement temperature. The power supply 12 is used to apply a periodic voltage to the material 23 to be tested accor...

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Abstract

The invention discloses an electrocaloric performance measuring device. The electrocaloric performance measuring device comprises a measuring chamber used for placing a material to be tested, a temperature control system, a power source, and a temperature sensor; the temperature control system is used for heating or cooling the air and the material to be tested in the measuring chamber to a preset measuring temperature; the power source is used for loading the material to be tested with a periodic voltage based on control signals so as to obtain electrocaloric heat energy or cold energy generated by the material to be tested; the temperature sensor is used for collecting heat exchange energy between the material to be tested and the environment in the measuring chamber, and sending signals to an external signal acquisition system, so that the electrocaloric performance of the material to be tested is obtained. According to the electrocaloric performance measuring device, the temperature sensor is used for directly measuring the temperature change of the electrocaloric material in a charging and discharging cycle, so that the electrocaloric performance of the electrocaloric material at different temperatures in different electric fields can be measured rapidly and accurately, measuring errors in indirect measuring caused by numerical calculation and simulation are avoided, electrocaloric performance measuring accuracy and credibility are increased, and convenience is provided for technical staff in research and application fields of electrocaloric materials.

Description

technical field [0001] The invention relates to the technical field of electric card performance measurement of electric card materials, in particular to a measuring device for measuring the electric card performance of electric card materials based on a direct method. Background technique [0002] Electric card material is a common functional material, and its electric card effect is the change of adiabatic temperature or isothermal entropy due to the change of polarization state caused by the change of external electric field of polar material. The electrical card effect was first discovered in 1880 in Rochlle Salt. For quite a long time afterwards, the electric card effect obtained in the experiment did not attract much attention because it was weak and did not meet the application requirements. [0003] As Mischenko and Neese reported ferroelectric films with a temperature change of more than 10K and ferroelectric polymers that can work at room temperature in the journa...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/20
CPCG01N25/20
Inventor 徐海生梁柱陈建伟
Owner KUSN HISENSE ELECTRONICS
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