Glossary

Accelerometer Accelerometer measures the acceleration it experiences See also
AHRS Attitude Heading Reference System. 3-axis sensors that provide heading, attitude and yaw information for aircraft. Replaces traditional mechanical gyroscopic flight instruments See also
Anodic wafer bonding Silicon and glass substrates are bonded at elevated temperature and with a high DC potential creating an electrical field. Sodium ions between the substrate surfaces are forming a solid chemical bond.  
BiCMOS Bipolar junction transistors and Metal-Oxide-Semiconductor technology into a single device See also
Epitaxial layer Method of depositing a monocrystalline film on a monocrystalline substrate See also
Failure rate The frequency with which a component fails See also
Field failure Failure occurred during normal operation by end user  
FOG Fiber Optic Gyroscope. Uses the interference of light to detect mechanical rotation See also
Gimbal Pivoted support that allows the rotation of an object about a single axis See also
GPS Global Positioning System is a navigation satellite system See also
Gyro Device for measuring or maintaining orientation, based on the principles of angular momentum See also
IMU Inertial Measurement Unit. The main component of inertial guidance systems See also
Inertia The resistance of mass, i.e. any physical object, to a change in its state of motion See also
INS Inertial Navigation System. Navigation aid that uses a computer and motion sensors to continuously calculate the position, orientation, and velocity of vehicles See also
LCC Leadless Chip Carrier. Type of packaging for integrated circuits that has no "leads", but instead rounded pins through the edges of the ceramic package See also
LF wireless Wireless transmission at Low Frequency in the range of 30kHz-300kHz See also
MEMS MicroElectroMechanical System See also
Microcontroller Small computer on a single integrated circuit designed for small applications See also
Q factor Quality factor. Describes how under-damped an oscillator is. In electronic engineering, as a measure of the 'quality' in a well tuned circuit or resonator See also
RISC Reduced Instruction Set Computer. ARM RISC - Advanced RISC Machine See also
ROV Remotely Operated Vehicle. Underwater robot common in deepwater industries such as offshore hydrocarbon extraction. See also
RLG Ring Laser Gyroscope. Uses interference of laser light within an optical ring to detect changes in orientation and spin See also
RS422 protocol Technical standard defining Electrical Characteristics of Balanced Voltage Differential Interface Circuits See also
SOIC package Small-Outline Integrated Circuit. Surface-mounted integrated circuit (IC) package See also
SPI communication Serial Peripheral Interface bus. Synchronous serial data link standard that operates in full duplex mode See also
Anodic wafer bonding Silicon and glass substrates are bonded at elevated temperature and with a high DC potential creating an electrical field. Sodium ions between the substrate surfaces are forming a solid chemical bond.  
Tactical grade IMU A tactical grade IMU can be used to provide stand-alone navigation for a few minutes. Tactical grade IMU's are used extensively in the industry and defense sector due to their cost effective performance. Most often, tactical grade is used to describe gyro performance with in run bias stability in the 1°/h range and angular random walk (ARW) of 0.15 °/√h or better. Sometimes it can also be used to describe parts with in run bias stability in the
range of 0. 5°/h to 5 °/h and in rare cases to include in run bias stability up to 10 °/h.
 
Tactical grade inertial measurement unit A tactical grade IMU can be used to provide stand-alone navigation for a few minutes. Tactical grade IMU's are used extensively in the industry and defense sector due to their cost effective performance. Most often, tactical grade is used to describe gyro performance with in run bias stability in the 1°/h range and angular random walk (ARW) of 0.15 °/√h or better. Sometimes it can also be used to describe parts with in run bias stability in the
range of 0. 5°/h to 5 °/h and in rare cases to include in run bias stability up to 10 °/h.
 
Thermal imaging
Produce images of radiation in the infrared range of the electromagnetic spectrum. See also
UAV Unmanned Aerial Vehicle. Remotely piloted aircraft commonly referred to as a drone. See also
Venturi effect
Reduction in fluid pressure when a fluid flows through a constricted section of pipe. See also