Fabrication and characterization of a piezoelectric accelerometer

被引:35
作者
de Reus, R
Gullov, JO
Scheeper, PR
机构
[1] Mikroelektr Centret, DK-2800 Lyngby, Denmark
[2] Bruel & Kjaer AS, DK-2850 Naerum, Denmark
关键词
D O I
10.1088/0960-1317/9/2/005
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Zinc oxide based piezoelectric accelerometers were fabricated by bulk micromachining. A high yield was obtained in a relatively simple process sequence. For two electrode configurations a direction selectivity better than 100 was obtained for acceleration in the vertical direction and a selectivity of 3 for acceleration in the horizontal direction, respectively. The charge sensitivity in the vertical direction is better than 0.1 pC g(-1) and a noise level of 1 x 10(-4) g Hz(-1/2) was estimated.
引用
收藏
页码:123 / 126
页数:4
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