Inertial Measurement Unit
Glavkosmos
An Inertial Measurement Unit (IMU) designed for future manned spacecraft, providing precise measurement of velocity and angle increments using fiber-optic gyroscopes and vibrating string accelerometers.
Key figurescomparable across the catalogue
- Design life
- 15 years
Normalised to common units so this product can be compared with others in its category. The supplier's own wording is below.
As published by the supplier
- Purpose
- Measurement of velocity and angle increments on three sensitive axes of fiber-optic gyroscopes and vibrating string accelerometers of measurement channels and transmission of that information to the control system.
- Year of release
- 2015
- Design life
- 15 years
- Flight qualification of the product
- No
- Brief history of flight qualification
- The instrument is being developed for future manned spacecraft.
- Measurement range
- ±60°/s
- Scale point of the least category errror
- 0.0001
- Random component of the care rate in startup
- Sealed monoblock device including electronic and opto-electronic modules with a block of sensitive elements, containing three mutually orthogonal sensitive elements of fiber-optic gyroscopes and three of mutually orthogonal sensitive vibrating string accelerometer elements.
About
This Inertial Measurement Unit (IMU) is designed for the precise measurement of velocity and angle increments across three sensitive axes. It utilizes fiber-optic gyroscopes and vibrating string accelerometers for its measurement channels, transmitting this critical information to the spacecraft’s control system. The unit, released in 2015, boasts a guaranteed service life of 15 years. Although it currently lacks flight qualification, it is actively being developed for integration into future manned spacecraft. The IMU is described as a sealed monoblock device, encapsulating electronic and opto-electronic modules along with a block of sensitive elements. This block contains three mutually orthogonal sensitive elements for the fiber-optic gyroscopes and three mutually orthogonal sensitive vibrating string accelerometer elements. Key features include its accurate and precise measurement capabilities. The product is currently in the testing phase.
Documentation
No public datasheet yet — request the datasheet / ICD from the supplier.