DocumentCode
1766250
Title
Inertial micro-switch capable of prolonging contact time
Author
Kangfa Deng ; Weiguo Su ; Song Li ; Yating Zhang ; Wei Zhang
Author_Institution
Nat. Key Lab. of Micro/Nano Fabrication Technol., Peking Univ., Beijing, China
Volume
49
Issue
18
fYear
2013
fDate
August 29 2013
Firstpage
1167
Lastpage
1168
Abstract
A novel inertial micro-switch capable of prolonging contact time and reducing the contact-bouncing effect is proposed. Based on the nonlinear-spring shock stop, both the moveable and the fixed electrodes are made flexible by using a moveable contact point and a cascaded beam, respectively. The switch was successfully fabricated by bulk micromachining process. From the drop hammer test, the switch-on time increased with an increase of the input acceleration and reached a maximum of 335 μs, which is over 30 times larger than that of the traditional switch; and no bounce occurred.
Keywords
electrical contacts; micromachining; microswitches; bulk micromachining process; cascaded beam; contact time prolonging; contact-bouncing effect reduction; drop hammer test; inertial microswitch; movable contact point; nonlinear-spring shock stop;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el.2013.0872
Filename
6587660
Link To Document