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1. US20080202258 - MEMS shock sensors

Amt Vereinigte Staaten von Amerika
Aktenzeichen/Anmeldenummer 11677762
Anmeldedatum 22.02.2007
Veröffentlichungsnummer 20080202258
Veröffentlichungsdatum 28.08.2008
Erteilungsnummer 7810373
Erteilungsdatum 12.10.2010
Veröffentlichungsart B2
IPC
G01P 15/00
GPhysik
01Messen; Prüfen
PMessen der Linear- oder Winkelgeschwindigkeit, der Beschleunigung, der Verzögerung oder des Stoßes; Anzeigen des Vorhandenseins oder Fehlens einer Bewegung; Anzeigen der Richtung einer Bewegung
15Messen der Beschleunigung; Messen der Verzögerung; Messen des Stoßes bei einer plötzlichen Beschleunigung
CPC
G01P 15/0891
GPHYSICS
01MEASURING; TESTING
PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
15Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
02by making use of inertia forces ; using solid seismic masses
08with conversion into electric or magnetic values
0891with indication of predetermined acceleration values
G01P 15/06
GPHYSICS
01MEASURING; TESTING
PMEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
15Measuring acceleration; Measuring deceleration; Measuring shock, i.e. sudden change of acceleration
02by making use of inertia forces ; using solid seismic masses
04for indicating maximum value
06using members subjected to a permanent deformation
H01H 1/0036
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
1Contacts
0036Switches making use of microelectromechanical systems [MEMS] ;
H01H 9/168
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
9Details of switching devices, not covered by groups H01H1/00 - H01H7/00
16Indicators for switching condition, e.g. "on" or "off"
168making use of an electromagnetic wave communication
H01H 35/14
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
35Switches operated by change of a physical condition
14Switches operated by change of acceleration, e.g. by shock or vibration, inertia switch
H01H 35/146
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
35Switches operated by change of a physical condition
14Switches operated by change of acceleration, e.g. by shock or vibration, inertia switch
146operated by plastic deformation or rupture of structurally associated elements
Anmelder Seagate Technology LLC
Erfinder Amin Nurul
Xue Song S.
Ryan Patrick J.
Vertreter Shumaker & Sieffert, P.A.
Titel
(EN) MEMS shock sensors
Zusammenfassung
(EN)

A shock sensor comprises a substrate and at least one flexure coupled to the substrate and configured to deflect upon an application of force to the shock sensor sufficient to deflect the flexure. Deflection of the at least one flexure produces a detectable change in an electrical property of the shock sensor. Examples of detectable changes in an electrical property of the shock sensor include an open circuit condition, a closed circuit condition, and a variation in voltage of a piezo-electric detector. In some embodiments, the change in the electrical property of the shock sensor may be remotely read by interrogation of a radio frequency identification transponder positioned on the substrate using a remote radio frequency identification transceiver. The disclosure also relates to a shock sensing system and method of shock detection.