We are LINSEIS

Since 1957

Regionally rooted in the Fichtel Mountains
Linseis Messgeräte is a family business that is already in its third generation. We are regionally rooted and at home in the beautiful porcelain town of Selb.

Nevertheless, we operate internationally and can be reached on every continent with subsidiaries or through our dealers. Therefore, it is important to us that our employees feel comfortable in our home region of Hochfranken and are open to other cultures.

The age structure of our employees is well mixed

In the last few years, long-time employees who had been with the company since their apprenticeship have (unfortunately) retired after more than 45 years of service. New employees have meanwhile become permanent fixtures in our company and have greatly rejuvenated the age structure in recent years. Outside working hours, some employees get together for sports or barbecues, which has a very positive effect on the pleasant working atmosphere. The company is in the midst of a rejuvenation process.

Development potential

With us, you have the opportunity to grow in terms of tasks, responsibility and projects. There are many opportunities to join the company and everyone has the chance to develop according to his or her strengths. Because only those who are able to develop in their profession can advance responsible tasks and projects.

We are…

… promoters of space exploration

Conditions in space are different from those on Earth. Due to the continuous expansion, the universe cools down more and more, currently, a temperature of -270 °C can be given. Thus, the temperature of space is 3 °C above absolute physical zero. The spaceships and probes are exposed there to the vacuum and the rays of the sun and must partly also protect humans from them.

The JPL, Jet Propulsion Laboratory, an organization funded by the federal government of NASA and managed by Caltech, is incessantly researching new opportunities in space. For the development of new technologies, for the exploration of space, they need to test the materials used for the construction of probes and spacecraft for the special external environmental conditions of space.

For such measurements, they use a dilatometer with cry option. A special device that can measure at cryogenic temperatures from –263 °C to +220 °C and thus precisely imitate the external influences of space. In order to continue to send people into the universe to explore and research it in the future.

…supporters of elegance and accuracy

Rolex invented the world’s first waterproof wristwatch and continues to research new innovative models for every purpose.

In 1960, U.S. Navy Lieutenant Don Walsh and Swiss oceanographer Jecques Piccard launched an expedition to the deepest place on earth, the Mariana Trench. They were accompanied by an experimental Rolex Oyester watch, now known as “The Old Lady,” which was attached to the outer wall of the deep-sea submersible. It was exposed to deep-sea pressure and cold throughout the nine-hour dive. The crew was anxious to see if it would still tick after their dive, it did. It had not taken any damage and still functioned perfectly as before.

In order to be able to guarantee such quality in today’s world, Rolex tests the materials they use, such as their specially developed 904L stainless steel alloy, ceramic, or platinum, for thermal influences. To do this, they perform measurements using a dilatometer, the RITA model, a high-speed dilatometer with an induction furnace. The quenching method is used to determine dimensional and length changes due to thermal expansion and phase transformations as steel heats up and cool down. The instrument can perform measurements under vacuum, inert, oxidized, and reduced atmospheres from -150°C to 1600°C in one run.

…co-drivers of the mobility of tomorrow

It is hard to imagine the automotive industry without the electric car. “100% Electric” is Volkswagen’s motto for their new electric car the Polestar 2. E-cars run on purely electric power instead of gasoline. The heart of the car is in its engine. It runs on electricity, which is stored in a battery. The electric motor converts this electrical energy into mechanical energy by generating magnetic fields. The attractive and repulsive forces of which set the car in motion.

The battery stores the electricity that powers the car. Currently, lithium-ion batteries are predominantly used. They are durable, charge quickly, and can store more electricity than other batteries.

VW tests the components of such a battery for their thermal properties to prevent the engine from overheating and to ensure the best quality of its vehicles. For measurements, they use an LFA 1000 to determine the thermal diffusivity and thermal conductivity of solids. The Laser Flash method is used to measure efficiently in a temperature range from -125°C to 2800°C.

… protectors of the infrastructure

Power plants have been supplying us with electrical energy for years. But what would happen if the power plants all failed? It would take exactly 17.7 seconds to paralyze Central and Western Europe. Around 15 million households would then be without electricity.

Civilization as we know it is far more fragile than most people think. The electrons in the lines have to change direction exactly 50 times a second, otherwise, there is a risk of serious damage to the infrastructure. In a figurative sense, the pressure in the lines must always be the same, regardless of whether the wind farms in the north are not producing any electricity because of a high-pressure area, and at the same time, millions of consumers in the south are switching on their air conditioners. The power grid is the system of systems: each and every one of us depends on it 24 hours a day. Without electricity, a society plunges back into the Middle Ages.

To prevent this, power plants must run according to strict safety regulations. In a coal-fired power plant, for example, the quality of the furnace must be tested to see how much it will expand or even be damaged when coal is burned. (GE) General Electric uses a DIL L78/ RITA for such measurements. This special quench dilatometer is designed to determine continuous cooling/heatingCHT, CTT, and isothermal TT diagrams for metallurgy. It provides information on continuous heat transformation in a given time as well as a transformation during heat addition or removal.

… companions of cutting-edge research

At the top university in Cambridge, England, more than 20 thousand students conduct research and study every year. The university has already produced 110 Nobel Prize winners – 34 of them in the field of physics. Among them were Stephen Hawking and Isaac Newton.

The University of Cambridge has the opportunity to provide its students with a very special analytical instrument: a Thin Film Analyzer (TFA). A measuring instrument that can test thin films down to 5 nm for their physical properties. A sheet of paper, for example, has a thickness of about 120,000 nm.

A leading research group is currently working in Cambridge with a TFA device. Organic semiconductors exhibit a variety of transport phenomena that conventional inorganic semiconductors such as silicon do not. Understanding transport at the molecular level requires sophisticated experimental techniques. At Cambridge, many techniques for electrical transport, optical spectroscopy, and scanning probes have already been developed to characterize these processes. They are also interested in applications of these materials in flexible electronics, spintronics, as well as energy devices, particularly waste heat thermoelectric conversion.

…co-pilots of the world champions

Extreme conditions prevail on the race track. Due to the high speeds and sharp curves, it is particularly important to avoid overheating in the engine area, on the brakes, and on the tires. Otherwise, serious accidents can occur. Outside temperatures of up to 35 °C can exacerbate these problems.

Red Bull GmbH not only produces the usual energy drinks, known for their slogan “Red Bull gives you wings”, but among other things they have their own Formula 1 team, which won the world championship title in 2021. In order to guarantee the driver that his car will drive safely on the race track, all relevant materials and parts, such as the brake discs, must first be tested for their thermal properties.

To be able to check such thermal properties, the THB Advance measures thermal conductivity, thermal diffusivity, and specific heat capacity. The one-button solution and high measurement accuracy allow fast and compact measurements. Its measurement range is generally from -150 °C up to 700 °C.

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