Spinning Mass Mechanical Gyroscopes

This paper is an introduction to spinning mass mechanical gyroscopes. It discusses the history of gyroscopes, basic principles and the differences between Rate and Rate Integrating Gyroscopes.

USD Model 475 Series Rate Gyroscope Technical Brief

This applications note discusses the USD 475 Rate Gyroscope. Included here is a brief discussion on rate gyroscope basics, operation, and uses, and a dissection of the model by major component. This applications note is primarily intended to familiarize the reader to the basic rate gyroscope functionality.

US Dynamics Rate Gyroscope Interface Brief

This applications note discusses in brief, the typical input signals to and output signals from a USD miniature spinning mass Rate Gyroscope. The aim of this note is to give system designers and engineers some basic insight as to how to plan for the design and implementation of the necessary rate gyroscope operation support functions.

Basic Gyroscope Spin Motor Excitation Requirements For USD Gyroscopes

This applications note discusses basic gyroscope spin motor excitation requirements for many models of USD Rate Integrating Gyroscopes (RIG) and Rate Gyroscopes. Most USD gyroscopes utilize 2 phase synchronous (hysteresis) motors to drive the gyroscope inertia wheel. The aim of this note is to introduce system designers and engineers to the basics of 2 phase synchronous induction hysteresis motors used in gyroscopes along with the motor drive excitation requirements. In addition, basic circuitry for the excitation of the 2 phase synchronous spin motors will also be discussed. The reader can then expand on the information presented here as applicable to their specific application.

Basic Output Generator Excitation and Demodulation Requirements for USD Gyroscopes

This applications note discusses the input signal excitation and output signal conditioning (demodulation) requirements of the transformer type output generator, or pickoff used on the USD Rate Integrating Gyroscopes (RIG) and Rate Gyroscopes. In addition, basic transformer type pickoff operation will be presented. The discussions and circuit examples provided in this note are intended to introduce system designers and engineers to the minimum basic requirements for gyroscope pickoff excitation and demodulation.

The Concept of ‘Rate’ (more particularly, angular rate pertaining to rate gyroscopes)

This applications note discusses in brief, the concept of rate, in particular angular rate, as it pertains to gyroscopes and the measurement of angular velocity, or the rate-of-turn, along with how the data can be used. This applications note is primarily intended to familiarize the reader to the basic concepts relating to the rate gyroscope.