Differential Sensor Technologies in Space

Space applications require extreme reliability and ruggedness. A laser-focusing mirror on a satellite requires precise "steady state" pointing. A high-resolution camera needs absolute stabilization. A precision instrument cannot vibrate, even to a nanometer.

Blue Line can help you find the solution you need. We offer a series of differential sensing systems that are space flight qualified (SFQ), which means that our components meet the most stringent requirements of design, materials, and quality control. Our systems will not outgas, contaminate, or radiate electromagnetic fields that could cause system upset. And our systems meet demanding performance requirements, even after long exposure to radiation environments.

Our sensors are available in both micron- and millimeter-ranges. Both types utilize new low-power circuit design techniques to make them more reliable and stable in this harsh environment. And both have the hard-to-find features that are on your checklist when you design for space: low mass, high reliability, low power consumption, and the best performance available.

Common Space Applications of Blue Line Sensor Technologies

Platform stabilization

Mirror steering

Image stabilization

Laser communication

Inertial platforms

Directed energy

Relay mirrors

High-energy lasers

Micro-gravity research

Earth imaging/surveillance

Active or adaptive structure

Magnetic bearings

Magnetic levitation

Vibration cancellation

Summary of SFQ Technology & Features

Eddy Current Technology	Non-contact sensors High resolution Two measuring channels per unit Differential output for low noise and high precision Insensitive to humidity, vacuum, and environmental contaminants Excellent long-term stability
Mission Adaptability	Unequal cable lengths are acceptable Temperature difference between sensors is acceptable External clock synchronization Standard or custom packaging Non-SFQ evalutation units available
Space Flight Qualified Features	Rapid response Radiation-hardened design Low power consumption for high reliability Small footprint Vacuum compatible Cryogenic sensors Built per MIL-STD-454/1547

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