Watson Patents, Papers, Presentations, and Reports

Patents

Listed below are some of our US patents.

pdf 7,801,694 B1 Gyroscope With Temperature Compensation
pdf 7,411,465 B2 AGC Circuit for the Reduction of Harmonics in the Drive Signal
pdf 6,845,667 B1 High Q Angular Rate Sensing Gyroscope
pdf 6,550,329 B2 High Q Angular Rate Sensing Gyroscope
pdf 6,272,925 B1 High Q Angular Rate Sensing Gyroscope
pdf 5,802,728 Liquid Level and Angle Detector
pdf 5,440,817 Vertical Reference and Attitude System
pdf 5,430,342 Single Bar Type Vibrating Element Angular Rate Sensor System
pdf 5,329,269 Single Core Triaxial Flux-gate Magnetometer
pdf 5,272,922 Vibrating Element Angular Rate Sensor System and North Seeking Gyroscope
pdf 5,270,648 Single Core Triaxial Flux-gate Magnetometer
pdf 4,674,331 Angular Rate Sensor
pdf 4,628,734 Angular Rate Sensor Apparatus
pdf 4,578,650 Resonance Drive Oscillator Circuit
pdf 4,511,848 Synchronous AM Demodulator With Quadrature Signal Cancellation
pdf 4,479,098 Circuit for Tracking and Maintaining Drive of Actuator/Mass at Resonance

Reports

pdf Magnetometer Installation Guide
This informational guide is written to help users of fluxgate magnetometer equipped Watson sensors to find a suitable mounting location.
pdf Bank Error Graph
See why you need velocity input for your Attitude and Heading Reference System (AHRS). Bank errors can accumulate rapidly during turns if left uncompensated.
pdf Attitude and Heading Reference System Report
pdf A Brief Introduction to GPS Technology
A short read about how GPS devices work. Several of our DMS products have GPS receivers installed.

Papers & Presentations

Vibratory Gyro Skewed Pick-off and Driver Geometry
Location & Navigation Symposium, Indian Wells, CA, USA, 2010Vibratory Gyro Skewed Driver and Pick-off Geometry
Anniversary Workshop on Solid-State Gyroscopy, Yalta, Ukraine, 2008Improved Vibratory Gyro Pick-off and Driver Technology
Symposium Gyro Technology, Stuttgart, Germany, 2006Coriolis Gyro Configuration Effects on Noise and Drift Performance
Symposium Gyro Technology, Stuttgart, Germany, 2002Vibrating Structure Gyro Performance Improvements
Symposium Gyro Technology, Stuttgart Germany, 2000Systems for Angle Measurement: A Study in Geometry
Sensors Expo, 1995Solid State Sensor System for RPV Instrumentation and Control
RPVs – Eleventh International Conference, Bristol, United Kingdom, 1994Improved North Seeking Gyro
IEEE Position Location and Navigation Symposium,
No. 0-7803-0468-3/92, pp. 121-125, 1992Vibrating Element Angular Rate Sensor for Precision Applications
IEEE Position Location and Navigation Symposium,
No. 90CH2811-8, pp. 17-20, 1990Solid State Rate Sensor Technology and Applications
SAE Business Aircraft Meeting & Exposition, No. 830727, 1983