We offer the widest product range of low-flow (mass) flow meters and controllers on the market. Numerous styles of both standard and bespoke instruments can be offered for applications in laboratory, machinery, industry and hazardous areas.
Customer satisfaction, innovation and quality of product and service have been the cornerstones of Bronkhorst's success. Based on our experience, innovation and sense of responsibility, a relationship with Bronkhorst assures Performance for Life.
Learn more about how Coriolis-based flow meters can be used as microfluidic flow meter instead of thermal flow meters. Read the customer story of a microfluidics system builder who used Bronkhorst products.
Are you looking for technical documentation, are you interested to learn more about the measuring principles of Bronkhorst products, or you do want to get in contact with a Bronkhorst Service Engineer? This section will guide you to the relevant service & support topics.
Bronkhorst High-Tech BV the leaders in Mass Flow Meter / Mass Flow Controller technology for gases and liquids, Pressure Controllers and Evaporation Systems.
Funded by the European Commission in 2013, the Graphene Flagship has brought graphene research and innovation from the lab into various commercial applications. The ‘Graphene Flagship’ is a Future and Emerging Technology Flagship by the European Commission. The Graphene Flagship facilitates bringing competencies together as well as cooperation between its partners, trying to accelerate and bring forward the industry acceptance of graphene technologies. Applications for graphene can be found in various areas, like energy and transportation to electronics and biomedicine, influencing our daily lives. The Graphene Flagship serves as technology accelerator, helping Europe to compete with other global markets in research and innovation. With an additional €20 million investment, the European Commission has now funded the creation of an experimental pilot line for graphene-based electronics, opto-electronics, and sensors.
Graphene can be subdivided in three different types: single-layered, double-layered and multi-layered graphene:
There are a couple of different methods to produce graphene. One of the most common methods in single-layered graphene production is Plasma Enhanced Chemical Vapour Deposition (PE-CVD). In this method, a mixture of gases - in which at least one gas contains carbon – is heated until a plasma has formed. Mass flow meters and controllers are used in CVD processes to dose gases and liquids accurately.
In PE-CVD the plasma forms a graphene layer on a nickel or copper substrate. Heating takes place in a vacuum, but a more ‘green’ chemical vapour deposition process can be used as well, in which heating takes place under atmospheric pressure. By using Chemical Vapour Deposition large sheets of graphene can be produced.
Some of the precursors are liquids that need to be evaporated first, to be used in the CVD process in its gaseous form. It’s very important that the plasma is created with the right proportions and precision. This can be achieved by using highly accurate flow instruments. A deviation in the plasma can cause defects in the graphene layer. Defects can be impurities in the 2D structure that can change the unique properties of the material.
An evaporation system like the Bronkhorst CEM system can deliver excellent performance in terms of stability and accuracy. These properties guarantee a reliable creation of plasma, which eventually leads to higher quality graphene.
In the research document ‘Scalable graphene production from ethanol decomposition by microwave argon plasma torch’ is described why the University of Cordoba (ES) uses the Bronkhorst Controlled Evaporation and Mixing system in the PE-CVD graphene production process.
Due to a large amount of unique properties research takes place in numerous areas of application. The main focus is on single-layered and double-layered graphene. For now it seems that single-layered graphene still gives the best results. At the same time the use of so-called flakes has considered account. These flakes are tiny pieces of graphene which can be mixed with another material, such as polymers. The properties of these materials can be improved by adding graphene flakes, which makes graphene widely applicable in different industries. A couple of examples based on single-layered graphene:
Contact us or download the research of John Bulmer, scientist at the University of Cambridge, about 'Forecasting continuous carbon nanotube production in the floating catalyst environment'.
The University of Cambridge is working on a reactor, in cooperation with Bronkhorst, to control the fabrication of Carbon Nanotubes. Read more about this fascinating project.
FLUIDAT is an online calculation tool to calculate flow rates and conversion factors for flow meters. Start calculating flow rates now!
Thermal mass flow meters are used to measure mass flow of low gas flow. A mass flow controller is a flow meter combined with a control valve.