40 17 ÂÏËÈ ÒÅÌÏÅÐÀÒÓÐÈ ÍÀ ÐÎÁÎײ ÕÀÐÀÊÒÅÐÈÑÒÈÊÈ ÑÅÍÑÎв ÍÀ ÎÑÍβ ÏÂÄÔ Î. ª. Ñåð㺺âà, À. Ô. Áóòåíêî, Ñ. Í. Ôåäîñîâ Àíîòàö³ÿ. Òåõí³÷í³ õàðàêòåðèñòèêè ñåíñîð³â çàëåaeàòü â³ä òåìïåðàòóðè íàâêîëèøíüîãî ñåðåäîâèùà. Âñòàíîâëåíî, ùî äëÿ äîñÿãíåííÿ äîâãîñòðîêîâî¿ ñòàá³ëüíîñò³ ïðè ï³äâèùåíèõ òåìïåðàòóðàõ íåîáõ³äíî ïðîâîäèòè ïîïåðåäí³é â³äïàë, ïðè÷îìó òåìïåðàòóðà â³äïàëó ïîâèííà áóòè òðîõè âèùå ïåðåäáà÷óâàíî¿ òåìïåðàòóðè åêñïëóàòàö³¿. Òîä³ âëàñòèâîñò³ ñåíñîðà çàëèøàþòüñÿ íåçì³ííèìè ïðîòÿãîì òðèâàëîãî ÷àñó. Íà

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... îñíîâ³ äîñë³äaeåíü çðîáëåíî âèñíîâîê ïðî òå, ùî ìàêñèìàëüíà òåìïåðàòóðà åêñïëóàòàö³¿ ðîçðîáëåíèõ ï³ðî-³ ï'ºçîåëåêòðè÷íèõ ñåíñîð³â íå ïîâèííà ïåðåâèùóâàòè 80°Ñ. Ñòîñîâíî ae íèaeíüî¿ ìåae³ ä³àïàçîíó ðîáî÷èõ òåìïåðàòóð, ââàaeàºìî çà äîö³ëüíå âñòàíîâèòè ¿¿ íà ð³âí³ -20... -25°Ñ, âðàõîâóþ÷è çìåíøåííÿ êîåô³ö³ºíò³â, à òàêîae òå, ùî òåìïåðàòóðà ñêëóâàííÿ àìîðôíî¿ ôàçè ÏÂÄÔ ñêëàäຠ-40...-50°Ñ. Êëþ÷îâ³ ñëîâà: ñåíñîðè, ïîë³ìåðí³ ñåãíåòîåëåêòðèêè, ï'ºçîåëåêòðè÷í³ êîåô³ö³ºíòè, ï³ðî-åëåêòðè÷í³ êîåô³ö³ºíòè, ÏÂÄÔ Abstract. It is established that for obtaining the prolonged stability at elevated temperatures it is necessary to perform preliminary annealing; moreover the temperature of annealing must be somewhat higher than the assumed temperature of operation. Properties of the sensor remain constant for the duration of prolonged time. It is revealed that the maximum temperature of the operation of the developed pyroelectric and piezoelectric sensors should not exceed 80 °C. It is advisable to establish the lower boundary of the range of operating temperatures at the level of -20...-25 °C taking into account that the glass transition temperature of the PVDF amorphous phase is in the range of -40...-50 °C.