熱(rè)激勵去(qù)極化電(diàn)流（thermally stimulated depolarization currents, 簡寫為(wéi)TSDC或(huò)TSC）是電(diàn)介質材(cái)料在(zài)受熱過程(chéng)中建立極化態或解除(chú)極化態時所產生的短路電(diàn)流。基(jī)本(běn)方(fāng)法是(shì)將試樣(yàng)夾在兩電極之(zhī)間，加熱到一定溫度使(shǐ)樣品(pǐn)中(zhōng)的(dí)載流子(zǐ)激發(fā)，然後施加一個(gè)直流(liú)的(dí)極(jí)化(huà)電壓，經過一(yī)段時間使(shǐ)樣品充分(fēn)極(jí)化，以便載(zǎi)流子向(xiàng)電極(jí)漂移(yí)或偶極子充(chōng)分(fēn)取(qǔ)向，隨(suí)後立即(jí)降溫到(dào)低(dī)溫，使(shǐ)各類極化“凍結(jié)"，然後(hòu)以(yǐ)等(děng)速(sù)率升(shēng)溫(wēn)，同時記(jì)錄試(shì)樣(yàng)經檢(jiǎn)流計短(duǎn)路(lù)的(dí)去(qù)極化電流隨溫度的變化關(guān)係，即得到TSDC譜。通過(guò)TSDC譜研(yán)究介質材料中(zhōng)偶極子和(hé)可(kě)動離(lí)子(zǐ)的性(xìng)質(zhì)，激(jī)活能（或(huò)陷(xiàn)阱深度(dù)），以及弛豫時間（壽(shòu)命）等(děng)。

General FeaturesAll TSDC (Thermal Stimulated Depolarization Current) measurements are supported by computer control and Windows-based software WinTSDC. It operates the polarization voltage source, the polarization/depolarization mode switches, the high sensitive and fast electrometer for sensing the depolarization current and several temperature control systems. Nearly any kind of TSDC experiment can be programmed by a flexible experiment set-up procedure. The experiment is defined by a series of time intervals. During each time interval, the polarization voltage and temperature is either defined as fixed value or with a continuously change in time (ramp). The system may be switched in each time interval between the polarization and depolarization current measurement mode. In addition to this general experiment set-up mode, predefined set-ups like e. g. batch modes for series of TSDC sweeps with different heating rates are supported.The basic TSDC parameters, like depolarization current as a function of temperature are evaluated and displayed graphically in single or multicurve representation and exported numerically. In another representation, the experiment state defined by polarization voltage, temperature and depolarization current is shown as a function of time.Optional Thermal WindowingIn addition to the standard TSDC functions, the thermal windowing technique can be performed by the TSDC system, which is requiring additional experiment conditions and optional software.It supports data manipulation functions like shifting, deleting of data points, and confining and smoothing of data curves. The main function of this software is the evaluation of relaxation maps from a thermal windowing experiment. The sample polarization is calculated by numerical integration from the measured depolarization current. Several procedures for integration and base line corrections are supported. After the conversion of the polarization and depolarization current into the relaxation time, the common relaxation maps are created. They show the single Debye relaxation modes in several representations like e. g. Arrhenius or a free energy diagram. Several curve fitting model functions like Arrhenius, Vogel Fulcher and Williams Landel Ferry (WLF) for the relaxation time data are supported.

• 自(zì)動電壓，電流測量(liáng)• 可(kě)選(xuǎn)多種獨立(lì)變(biàn)量：時間(jiān)，溫(wēn)度(dù)，極化(huà)電壓，極(jí)化(huà)溫度(dù)，極(jí)化時(shí)間，升(shēng)降(jiàng)溫速(sù)率(shuài)等等(děng)• 提(tí)供(gōng)多(duō)種(zhǒng)測量模式(shì)–Thermal Stimulated Depolarization Current–Thermal Stimulated Polarization Current–Isothermal–Relaxation Map with partial isothermal polarization–Relaxation Map with partial polarization due to thermal window• 可選(xuǎn)多種測量(liáng)參(cān)數：樣品(pǐn)電流，電流(liú)密度(dù)，電(diàn)荷變化(huà)，介電(diàn)常(cháng)數(shù)變化(huà)• 可導出為ASCII格式，並(bìng)可(kě)顯示為二維，三維(wéi)圖象(xiàng)，兼容(róng)Windows XP係統