Aerospace & Defense Technology - December 2021 - 34

Application Briefs
was able to offer numerous color schemes across most of their
range to suit a wide variety of terrains and environments.
The Jaegar Ranger 225 is just one of Silent Sentinel's camera
platforms, formed of a long-range thermal sensor and HD visible
sensor with the thermal camera capable of detecting
human threats up to 5 km away, with a ruggedised IP67 housing
to ensure optimum performance even in high-altitude
conditions with volatile climates. The Jaegar provides high
levels of camera positioning accuracy (0.0002°), as well as absolute
feedback and rapid pan and tilt speeds making it suitable
for the long-range detection of individuals and vehicles.
Ultraviolet Detector
Teledyne e2v
Chelmsford, UK
+44 (0) 1245 493493
www.teledyne-e2v.com
T
eledyne e2v, a part of the Teledyne
Imaging Group, and a Teledyne
Technologies company, has been contracted
by the European Space Agency
(ESA) to develop an improved version
of its previously supplied CCD69 detector.
Utilizing the experience and
data available from the ESA Aeolus
mission, hosting the first Doppler
Wind Lidar in space, Teledyne e2v will
further enhance the performance and
sensitivity of the ultraviolet detector
that could ultimately be deployed in
the next generation space-based
Doppler Wind Lidar instruments.
Teledyne e2v provided the CCD69
detector for the Aeolus mission, currently
in orbit gathering atmospheric wind profiles across the
Earth, launched on 22nd August 2018.
The Aeolus wind observations have had a significant positive
impact on weather forecasts and are currently used by
several weather centers. This has led to an interest by EUMETSAT
and ESA member states for a possible future operational
Doppler Wind Lidar Meteorological mission. Phase
A/B1 instrument activities and Phase A operations and
ground segment activities are, therefore, ongoing at ESA
and EUMETSAT.
Aeolus' ALADIN instrument, the first satellite mission to
provide profiles of Earth's winds, works by emitting an ultraviolet
laser beam through the Earth's atmosphere and measuring
the reflected return signal from air molecules and particles
(aerosols and hydrometeors) in the atmosphere.
Teledyne e2v, in collaboration with Airbus Defence & Space
and ESA, developed an innovative type of detector that simultaneously
measures the travel time and Doppler-shift of
the returned ultraviolet laser pulse to resolve the atmos34
Intro
Cov
pheric
wind speed at different altitudes along the instrument
line-of sight, from the surface or top of optically thin
clouds up to about 30 km altitude. This technique also allows
for the detection of thin aerosol and cloud layer and
the top altitude of thick clouds.
The returned signal is typically extremely weak, however
the detector has the capability to add together a number of returned
pulses to improve the accuracy of the measurements.
Aeolus is the first satellite of its kind to utilize this type of
technology in space.
Aeolus' data is being distributed publicly to forecasting services
and scientific users across the world in less than three hours
of sensing, and is used in the daily forecasts of several European
weather centers and in particular the UK's Met Office.
Teledyne e2v is part of the Teledyne Imaging Group. Their
innovations frequently contribute to developments in healthcare,
life sciences, space, transportation, defence and security,
and industrial markets.
For Free Info Visit http://info.hotims.com/79420-520
www.aerodefensetech.com
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Once global travel resumes, Silent Sentinel will be travelling
to the country to provide advanced, embedded training. However,
as these systems have been installed during the first
phase of the contract, Silent Sentinel has provided remote
guidance and instruction.
Silent Sentinel is a Hertfordshire-based manufacturer who design,
manufacture, and supply advanced surveillance and security
systems. They manufacture a range of cooled and uncooled
thermal cameras, HD/4K visible cameras, and offer an array of
technologies to create bespoke products for their customers.
For Free Info Visit http://info.hotims.com/79420-467
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http://info.hotims.com/79420-467 http://info.hotims.com/79420-520 http://info.hotims.com/79420-520 http://www.aerodefensetech.com http://info.hotims.com/79420-922
Aerospace & Defense Technology - December 2021

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