基于热释电效应的电介质极化强度测量实验教学设计#br#

doi:10．14139/j．cnki．cn22-1228．2026．05．006

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摘要电介质的极化强度(P)是电磁学教学的核心概念，但微观抽象、信号微弱，传统实验难以直接测量。本实验基于热释电效应，采用铁电陶瓷材料，在缓慢升温中捕获去极化电流(I p )，经时间积分定量得到极化强度随温度的变化。该实验融合热学与电磁学，有助于学生理解极化物理概念，并培养微弱信号与数据处理能力。

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	唐永森
	周双
	李兴鳌

关键词: 热释电效应电介质极化强度

Abstract: The polarization intensity (P)of dielectrics is a core concept in electromagnetism teaching，but its
microscopic Abstract:ness and weak signal make it difficult to measure directly in traditional experiments．This
experiment，based on the pyroelectric effect，uses ferroelectric ceramic materials to capture the depolarization
current (I P ) during slow heating． Through time integration，the variation of polarization intensity with
temperature is quantitatively obtained． This experiment integrates thermal and electromagnetic knowledge，
helping students understand the physical concept of polarization and cultivating their ability to handle weak
signals and process experimental data．

Key words: pyroelectric effect dielectric materials polarization intensity

发布日期: 2026-10-20

O 441．1

基金资助: 国家自然科学基金青年项目(12304124 );中国博士后科学基金第 78 批面上资助(2025M783396)

引用本文:

唐永森, 周双, 李兴鳌. 基于热释电效应的电介质极化强度测量实验教学设计#br#[J]. 大学物理实验, 2026, 39(5): 34-36.
TANG Yongsen, ZHOU Shuang, LI Xing'ao. Experimental Design for Measuring the Polarization Intensity of Dielectric Materials Based on the Pyroelectric Effect#br#. Physical Experiment of College, 2026, 39(5): 34-36.

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https://dawushiyan.jluct.edu.cn/CN/10．14139/j．cnki．cn22-1228．2026．05．006 或 https://dawushiyan.jluct.edu.cn/CN/Y2026/V39/I5/34

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