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Class Information
Number: 73/514.17
Name: Measuring and testing > Speed, velocity, or acceleration > Acceleration determination utilizing inertial element > Specific type of electric sensor or specific type of magnetic sensor > Rebalance
Description: Subject matter wherein (a) the electric or magnetic sensing means produces an output signal in response to displacement of the inertial member and (b) the output signal is used to restore the inertial member to a null position.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7461553 |
Self-calibrating oversampling electromechanical modulator and self-calibration method |
Dec. 9, 2008 |
| 7347096 |
Digital accelerometer |
Mar. 25, 2008 |
| 7347097 |
Servo compensating accelerometer |
Mar. 25, 2008 |
| 7331229 |
Magnetic null accelerometer |
Feb. 19, 2008 |
| 7296469 |
Magnetofluidic accelerometer with active suspension |
Nov. 20, 2007 |
| 7252001 |
Three axis active magnetic levitation for inertial sensing systems |
Aug. 7, 2007 |
| 7178399 |
Housing for magnetofluidic accelerometer |
Feb. 20, 2007 |
| 7155979 |
Self-calibrating oversampling electromechanical modulator and self-calibration method |
Jan. 2, 2007 |
| 7036374 |
Micro-machined suspension plate with integral proof mass for use in a seismometer or other device |
May. 2, 2006 |
| 6918299 |
Method and apparatus for improving performance of a force balance accelerometer based on a single-coil velocity geophone |
Jul. 19, 2005 |
| 6898970 |
Inertial navigation device for ion propulsion driven spacecraft |
May. 31, 2005 |
| 6832518 |
Pressure wave sensor using levitated mass |
Dec. 21, 2004 |
| 6799462 |
Gravimetric measurement method and system |
Oct. 5, 2004 |
| 6750999 |
Reconfigurable quasi-optical unit cells |
Jun. 15, 2004 |
| 6718605 |
Single-side microelectromechanical capacitive accelerometer and method of making same |
Apr. 13, 2004 |
| 6665110 |
Diagonal to rectangular pixel mapping for spatial light modulator |
Dec. 16, 2003 |
| 6571631 |
Displacement sensor and movement information collecting device comprising the same |
Jun. 3, 2003 |
| 6341259 |
Microsystems integrated testing and characterization system and method |
Jan. 22, 2002 |
| 6170331 |
Detecting rotational acceleration |
Jan. 9, 2001 |
| 6076403 |
Electromagnetic accelerometer |
Jun. 20, 2000 |
| 6073490 |
Servo accelerometer |
Jun. 13, 2000 |
| 6012333 |
Vibration control device for rotating objects |
Jan. 11, 2000 |
| 5962788 |
Transducer |
Oct. 5, 1999 |
| 5877421 |
Acceleration sensor |
Mar. 2, 1999 |
| 5852242 |
Apparatus with mechanical and electric springs and method for its manufacture |
Dec. 22, 1998 |
| 5817942 |
Capacitive in-plane accelerometer |
Oct. 6, 1998 |
| 5817939 |
Proof mass support and sensing system |
Oct. 6, 1998 |
| 5814727 |
Semiconductor accelerometer having reduced sensor plate flexure |
Sep. 29, 1998 |
| 5789677 |
Dual-axis force feedback accelerometer |
Aug. 4, 1998 |
| 5679436 |
Micromechanical structure with textured surface and method for making same |
Oct. 21, 1997 |
| 5604309 |
Electronics for Coriolis force and other sensors |
Feb. 18, 1997 |
| 5604308 |
Data interface for closed-loop accelerometer |
Feb. 18, 1997 |
| 5596144 |
Piezoresistive force rebalance accelerometer |
Jan. 21, 1997 |
| 5587530 |
Low stress magnet interface for a force rebalance accelerometer |
Dec. 24, 1996 |
| 5417111 |
Monolithic chip containing integrated circuitry and suspended microstructure |
May. 23, 1995 |
| 5331852 |
Electromagnetic rebalanced micromechanical transducer |
Jul. 26, 1994 |
| 5243544 |
Microgravity accelerometer data acquisition system |
Sep. 7, 1993 |
| 5220831 |
Closed loop temperature compensation for accelerometer current scale factor |
Jun. 22, 1993 |
| 5203210 |
Accelerometer with fastener isolation |
Apr. 20, 1993 |
| 5178013 |
Impact sensor |
Jan. 12, 1993 |
| 5048319 |
Method for calibrating an acceleration sensor |
Sep. 17, 1991 |
| 5024088 |
Electromagnetic accelerometer |
Jun. 18, 1991 |
| 5009111 |
Differential force balance apparatus |
Apr. 23, 1991 |
| 4891983 |
Inductively coupled force balance instrument |
Jan. 9, 1990 |
| 4841772 |
Three-axis superconducting gravity gradiometer |
Jun. 27, 1989 |
| 4711125 |
Inertial measurement unit |
Dec. 8, 1987 |
| 4464721 |
Digitized pickoff system |
Aug. 7, 1984 |
| 4458536 |
Multiaxial vibration sensor |
Jul. 10, 1984 |
| 4398418 |
Three-axis accelerometer having improved magnet configuration |
Aug. 16, 1983 |
| 4344235 |
Levitated ball inclinometer |
Aug. 17, 1982 |
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