Inertial and gyro systems use a combination of accelerometers and angular rate sensors (gyroscopes) to detect altitude, location, and motion. They may also be capable of detecting attitude, position, velocity, temperature, or magnetic field

Angular contact bearings are designed so that a contact angle between the races and the balls is formed when the bearing is in use

Super precision and spindle bearings are high-precision bearings that are designed for use in machine-tool spindles and other precision applications. Most super precision bearings and spindle bearings carry a high quality-rating such as ABEC-7 or ABEC-9, and run coolly and smoothly at high speeds

Incremental rotary encoders are multi-turn sensors that use optical, mechanical, or magnetic index-counting for angular measurement. They contain no absolute reference, but instead count relative to the turn-on position

Ball bearings are used to provide smooth, low friction motion in rotary applications. Ball bearings types include radial ball bearings (deep groove and angular contact) and thrust ball bearings

Radial or deep groove bearings can handle radial and axial loads to varying degrees, but are typically used when the primary load is in the radial direction.

Ceramic hybrid bearings, the most common type of ceramic bearing, are constructed of steel inner and outer rings with ceramic (typically Si3N4) balls in place of steel.  Common types of ceramic bearings are angular contact and conrad

Thin-section bearings have small cross-sections with respect to their diameter.

Inductive linear position sensors and switches are noncontact devices that determine an object's coordinates (linear or angular) with respect to a reference

Rotary position sensors include potentiometers, resolvers and a variety of magnetic and capacitive technologies. Sensors are designed for angular displacement less than one turn or for multiturn displacement

Calibration standards and reference sources include any source that can provide a reference for the calibration of an instrument or comparison of a material or component

Gyroscopes are designed to measure angular rate or orientation about a given directional vector

Voltage dividers and voltage references provide highly-accurate reference voltages for calibration and testing purposes

Voltage references are electronic circuits that produce a constant output voltage (reference) that is used to compare other voltages in a system

Bit error rate testers are devices or procedures that measure the bit error rate (BER) for a specific transmission