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1987 – First concepts for a radar level
measuring instrument
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The heavy dependency of existing measuring principles on
process parameters such as pressure and temperature called for
the consideration of new solutions for measuring levels in
automated processes. Microwave technology promised a higher
quality of measurement and offered tremendous potential for
technological advancement.
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1991 – First presentation of a radar
instrument at the Achema exhibition
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After four years of development, the first radar instrument
ready for series production was introduced. In contrast to all
other instruments on the market, the VEGA instrument operates
according to the pulse method. This technology offered more
development potential than the traditional FMCW method.
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1995 – Introduction of the intelligent
echo signal processing software ECHOFOX©
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The latest microprocessor technology and increasingly larger
memory capacity enable the construction of a completely
digital signal processor with fuzzy logic algorithms. The
practical experience gained through 20 years of working with
level measurement technology, especially in the area of
ultrasonics, was integrated into a sensor for the first time.
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1997 – First 2-wire radar instrument in
the world
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The rapid development of radar microelectronics and the
low-current PULS radar method allow for the first time the
construction of a microprocessor-controlled sensor powered
only by the 4-20mA signal cable. The easy connection of these
sensors represents a great advantage for the user.
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1998 – Market leader in the radar sector
(6,300 units sold worldwide)
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The combining of cost-effective 2-wire technology with the
advantages of radar level measurement enables the use of the
sensors in many areas of industry for the first time.
Applications in which the use of microwave technology was not
possible, or simply too expensive, can now be equipped with
radar instruments.
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2003 – Introduction of the product concept
plics®
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The implementation of the sensor-spanning product concept
plics® for radar level measurement simplifies tremendously
the installation and commissioning of a measurement loop with
radar sensors. The modular construction of the plics® sensors
allows connection to practically any evaluation or control
system.
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2004 – First ever 2-wire radar
instrument for bulk solids
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The use of the most up-to-date microwave
components increases the sensitivity of the radar instruments
a thousandfold. This allows reliable measurement even in
processes with extremely harsh ambient conditions, such as e.g.
silos for bulk solids. The development of new, precision
focussing antenna systems, like the parabolic antenna, and the
adaptation of the ECHOFOX© signal processing to typical
application requirements optimise the radar instruments for
the measurement of bulk solids.
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2004 – Radar instrument No. 100,000
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13 years after the introduction of the
first VEGA radar measuring instrument, more than 100,000
measuring applications have been equipped with this
technology. This is striking evidence of the versatile
application potential of radar technology in level measurement
and reflects the confidence customers have in VEGA technology.
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