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 (pī′rō-ĭ-lĕk-trĭs′ĭ-tē, -ē′lĕk-)
Generation of electric charge on a crystal by change of temperature.


(ˌpaɪrəʊɪlɛkˈtrɪsɪtɪ; -ˌiːlɛk-)
(General Physics) the development of opposite charges at the ends of the axis of certain hemihedral crystals, such as tourmaline, as a result of a change in temperature


(ˌpaɪ roʊ ɪ lɛkˈtrɪs ɪ ti, -ˌi lɛk-)

electrification or electrical polarity produced in certain crystals by temperature changes.
py`ro•e•lec′tric, adj.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.pyroelectricity - generation of an electric charge on certain crystals (such as tourmaline) as a result of a change in temperature
electrical phenomenon - a physical phenomenon involving electricity
References in periodicals archive ?
To meet growing customer demand for routine calibration of laser and optical-fiber power meters (OFPMs), we have developed two additional calibration services based on comparisons with pyroelectric detectors for absolute responsivity of fibercoupled power meters and relative spectral responsivity.
Figure 10 shows the general features of an antenna-coupled pyroelectric detector.
Because room temperature thermopiles and pyroelectric detectors do not have high enough sensitivities to measure weak signals from monochromators, HgCdTe detectors were selected as working standards for the 5 [micro]m to 20 [micro]]m wavelength range.
Blevin, Chopper-stabilized null radiometer based upon an electrically calibrated pyroelectric detector, Appl.
The last flux bin was terminated at x = 50[[micro]meter]m from the pyroelectric detector, which coincides with the measured thickness of the sample.
Prior to this work, extension of the detector responsivity scale to the NIR spectral region relied on the use of a spectrally-flat pyroelectric detector to determine the relative responsivity of NIR working standard detectors, i.
The body heat radiated by the animal was detected with the sensor head of the monitor, which contained paired infrared pyroelectric detectors.