Modified PZT System for Pyroelectric IR Sensor

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J. Korean Ceram. Soc. > Volume 33(8); 1996 > Article

Journal of the Korean Ceramic Society 1996;33(8): 863.

Modified PZT계 초전형 적외선 센서개발

황학인, 박준식¹, 오근호

한양대학교 공과대학 세라믹공학과
¹전자부품종합기술연구소 부품연구2팀

Modified PZT System for Pyroelectric IR Sensor

ABSTRACT

Fabricated modified PZT system for pyroelectric IR sensor were analyzed and characterized for dielectric piezoelectric and pyroelectric properties. Particle size and distribution of source powders were controlled by attrition milling process. 0.05PSS+yPT+(0.95-y)PZ+0.4 wt%MnO2 system was fabricated and investigated sintering density crystal structure and micro-structure through sintering conditions sintering temperature and sintering atmosphere. The poled sintered system of y=0.11 showed the lowest dielectric constant. The dielectric constants were increased with increasing y-mole ratio. The pyroelectric properties of modified PZT systems which were assembled to TO-5 package were measured by IR measurement system average out-voltage of 0.05PSS+0.1PT+0.84PZ+ wt%MnO2 was 3V.

Key words: PZT, IR, Sensor, Pyroelectric