VEGA Grieshaber
| VEGA Grieshaber KG
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|---|---|
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| legal form | Limited partnership |
| founding | 1959 |
| Seat | Schiltach |
| management | Isabel Grieshaber Günter Kech Rainer Waltersbacher |
| Number of employees | 1600 (as of 2020) |
| sales | 453 million euros (2020) |
| Branch | Science of measuring and control engineering |
| Website | www.vega.com |
| Status: 2020 | |
The VEGA Grieshaber KG is an international manufacturer of sensors for the measurement of level, switching and pressure in industrial manufacturing processes.
The company, based in Schiltach in the Black Forest / Germany, belongs to the Grieshaber Group together with Supfina Grieshaber GmbH & Co. KG and Grieshaber GmbH & Co. KG.
VEGA is active in over 80 countries with subsidiaries and sales partners and employs more than 1,600 people worldwide, 772 of them at the headquarters in Schiltach. Solutions for demanding measuring tasks in process automation have been developed here for more than 60 years. The annual turnover is around 453 million euros.
history
VEGA was founded in 1959 by Bruno Grieshaber (born September 16, 1919 in Triberg in the Black Forest , † October 7, 2005 in Kinzigtal ) in Wolfach. In 1964 a patent for the "current-oriented measurement" was applied for. In 1967 the patent application for the "capacitive measuring electrode" followed. The first pressure transmitters for continuous level measurement were manufactured as early as 1973. In 1975, 100 employees moved to Schiltach. In 1994 Jürgen Grieshaber took over the company management from his father.
Products
The company develops sensors for continuous level measurement, point level detection and process and differential pressure measurement, as well as devices and software for integration into process control systems. In 2003 the plics ® device platform was introduced. The modular system offers a uniform housing and electronics platform and a cross-device operating concept based on nine physical measuring principles for level and pressure measuring devices. The company and its products have all the necessary certificates and approvals for worldwide use. This applies to the area of technical safety as well as to the quality of products and services.
Typical areas of application for the sensors are process tanks, storage tanks, silos or mobile containers in the process industries, for example in the chemical or pharmaceutical industry, the food industry, in environmental technology, in the water and wastewater sector, in power generation, the mineral oil industry, metal extraction, in Mining, on ships and in airplanes.
Level measurement technology
With continuous level measurement, the level of a medium in a tank or silo is recorded and converted into an electronic signal. The level signal is either displayed directly on site or integrated into a process control or control system. Radar, guided radar, ultrasound, capacitive, hydrostatic and radiometry are used as measuring methods for continuous level measurement.
Point level detection
With point level detection, a limit switch is used to detect when a predefined fill level has been reached. A switching command starts or stops filling devices such as B. conveyor belts or pumps. Converted into a binary signal, limit switches can be integrated into a process control. Vibrating limit switches, capacitive, conductive and radiometric limit switches are used.
Pressure measurement technology
VEGA is one of the few measurement technology manufacturers that not only develops a large part of its pressure measuring cells itself, but also produces them as a core technology itself. Two in-house developments ensure high-precision measurement results: the metallic METEC ® measuring cell, the world's first metallic measuring cell with self-compensating temperature behavior, and the ceramic-capacitive CERTEC ® measuring cell with temperature shock compensation. The measuring cells are manufactured in a dust-free atmosphere under the conditions of "clean room class 100".
Density and flow measurement
With the help of the density measurement, the proportion of solids in a liquid is recorded. The flow measurement measures the amount of substance that flows through a pipe cross-section per unit of time. The quantity is output as mass or volume. VEGA uses the physical measuring methods differential pressure and radiometry for density and flow measurement.
Radar measurement technology
For more than 25 years, VEGA has been setting milestones in level measurement with radar. In 1991 VEGA presented the first radar level measuring device ready for series production. This was followed in 1997 by eric ® , the world's first two-wire radar sensor. Numerous applications in which the use of radar had previously been technically difficult or too expensive were equipped with the radar measuring device. In 2004 VEGA succeeded in increasing the sensitivity of the radar sensors by a factor of a thousand. The signal processing has been adapted to the typical conditions in bulk material containers. The radar sensors were thus prepared for the most difficult process conditions in the bulk solids industry. In 2014 the VEGAPULS 69, a radar sensor for continuous measurement of bulk solids, was introduced. This measures at a frequency of 80 GHz instead of the 26 GHz, which was widely used until then, and thus enables the transmission signal to be focused significantly better. Another milestone followed in 2016, VEGAPULS 64. The equivalent of VEGAPULS 69 also measures with the high frequency of 80 GHz, but is designed for level measurement of liquids. The small process connections enable use in applications in which radar level measurement technology had to be dispensed with for reasons of space.
Web links
Individual evidence
- ^ Margarete Dieterle: Farewell to Bruno Grieshaber. In: bathe online. October 13, 2005, accessed December 9, 2019 .
- ↑ Who is who? The German who's who. Founded by Walter Habel. Federal Republic of Germany and West Berlin. 24th edition. Schmidt-Römhild, Lübeck 1985, ISBN 3-7950-2005-0 , p. 407.