| Patent Number |
Title Of Patent |
Date Issued |
| 5426970 |
Rotation rate sensor with built in test circuit |
June 27, 1995 |
| A rotation rate sensor which employs a built-in (i.e. internal) test circuit. The rotation rate sensor includes a piezoelectric structure. Deposited on the piezoelectric structure are at least two pickup high and two pickup low electrodes. A pickup circuit is coupled to the pickup high |
| 4651075 |
Servoed accelerometer having isolated voltage torquing and method |
March 17, 1987 |
| Servoed accelerometer with isolated voltage torquing having first and second grounds, a servoed accelerometer having a torque coil, and an amplifier for driving said torque coil. The amplifier has inverting and non-inverting junctions. The second ground is coupled to the non-inverting |
| 4538203 |
Passive mass-spring type of sensing device having electronic damping |
August 27, 1985 |
| A passive mass-spring type of sensing device or other such device for monitoring a particular parameter, for example mechanical vibration, is disclosed herein. This device utilizes an electrically conductive coil having a given impedance disposed within a magnetic field in a way which |
| 4319488 |
Accelerometer |
March 16, 1982 |
| The technique for replacing certain components in a linear accelerometer with an arrangement compatible with all of the other components making up the accelerometer is disclosed herein. The components that are replaced include a potentiometer and mechanical acceleration sensing means whi |
| 4147063 |
Two axis gas damped angular velocity sensor |
April 3, 1979 |
| A thin plate-like rotor is mounted on a hub which in turn is attached to the shaft of a motor which drives the rotor at a predetermined rotational speed about a spin axes. A framework is provided for mounting the motor. The rotor has a damping face and an opposite signal face. A damping |
| 4095477 |
Two axis rate gyro |
June 20, 1978 |
| A two axis rate gyro for sensing angular velocity about two input axes includes a rotating disc which is bearing mounted in a framework. A motor is provided for driving the disc rotationally in the bearing mounts. Pickoffs are mounted in the framework which are spaced from the faces of |
| 4038876 |
Acceleration error compensated attitude sensing and control apparatus and method |
August 2, 1977 |
| A structural body is monitored in angular position about at least one axis by utilizing a tilt sensor responsive to tilt about the one axis and a sensor responsive to angular acceleration of the body about the one axis. The tilt sensor also responds to the tangential component of angular |
| 4016766 |
Counting accelerometer apparatus |
April 12, 1977 |
| Counting apparatus having a transducer for measuring a certain parameter and providing an output, with filtering means for filtering the output from the transducer and decision circuit means connected to the output of the filtering means capable of registering various levels of output fr |
| 3974699 |
Angular position sensing and control system, apparatus and method |
August 17, 1976 |
| A structural body is monitored in angular position about at least one axis by utilizing a level sensor and a sensor responsive to angular motion of the body about the axis being monitored. An output indicative of long term angular variations of the body about the axis is provided by the |
| 3967178 |
Wide band angular displacement and velocity sensor and method |
June 29, 1976 |
| An angular displacement transducer having a mounting base for mounting an inertial element sensitive to low frequency angular displacements and an inertial element sensitive to high frequency angular displacements. The low frequency sensitive inertial mass is a solid rotor device having |
| 3948107 |
Velocity transducer |
April 6, 1976 |
| A velocity sensor which may be modified to perform a sensing function for either angular velocity or linear velocity. The sensor has a base member which is split into upper and lower halves which are shaped to form internal walls defining an internal channel when joined together. A fluid |
