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Contactless Position sensors for space mechanisms based on eddy current sensing
19 June 2023
For more than 20 years, CTEC has been involved in various space missions, delivering products designed for severe environment conditions (vibrations, shocks, vacuum, humidity, wide thermal range including cryogenic). Eddy current sensor (ECS) technology, using printed circuit board (PCB) for printed coils, provides both a good resolution/accuracy and a good robustness against temperature variations.These sensors are available commercially off the shelf (COTS).
Contactless Torque Sensors based on shaft torsion measurement, compatible with existing shafts
19 June 2023
The torque measurement usually comes from strain gauges bonded on a shatf. the main concern in this measurement is due to the fact that these gauges are also rotating and the integration of electronic on rotating parts is definitely a blocking point.
AC magnetic field detection system applied to motion tracking
12 February 2010
In the context of motion tracking and virtual reality, there is a strong need for sensors to monitor the motion of a moving object. These sensors are characterised by their performances (ranges, accuracy, drifts, and susceptibility to the ambient environment) and embedded (small size, light weight). The magnetic technology compared to the mechanical or optical solution allows the working without structural skeleton composed of links interconnected by monitored joints and with possible optical shadows.
Strain gages sensors for high stability piezo actuators
19 June 2023
Space, military, and industrial applications require precision position sensors in order to perform closed-loop control or to monitor the state of a system. Those applications usually come with constraints such as wide thermal range, long lifetime, high stability, and compactness.
Cost efficient space micro-switch based on Contactless Eddy Current Sensor
8 September 2022
Micro-switches are frequently used in Space mechanisms to provide telemetry or to provide positive indication of the achievement of a desired position or function such as open, close, ready-to-latch, latched, end of travel, reference position, and for different mechanism applications. Current switches that rely on electro-mechanical technology are not very reliable and are sensitive to mounting orientation, to thermal gradients, and have a limited number of operational cycles, which is a problem for long life application, launch vibrations and shocks loads.
Magnetic resonant sensors for remote identification of objects
19 June 2023
This article deals with the use of Magnetic Resonant Sensors (M.R.S) for the realisation of an identification system. Nowadays, the market of I.D. systems evolves versus magnetic tags as they bring some advantages like remote identification and removal of the need of handling.