A new concentration model for methanol / water mixtures is shown. The model covers a wide range of process conditions: At temperatures of 0-80°C, concentrations of 0-100% can be calculated from the density with an accuracy of ± 0.2%. The direct methanol fuel cell (DMFC) is an important application for this as the power source of the future.
Discover the future of precise gas flow control with the innovative Smart Mass Flow Controller from TrueDyne Sensors AG. In cooperation with IST AG, we have developed a pioneering device capable of measuring density, temperature, pressure and mass flow – all in one sensor. Designed for flexibility and accuracy, this controller automatically adapts to different pure gases and binary gas mixtures, ensuring optimal performance. Learn more about this groundbreaking solution at TrueDyne Sensors AG.
Density and CO2 formation were measured during the fermentation process. The measurements of the wort’s density, degree of fermentation and alcohol content agree very well with expectations and verification measurements with laboratory equipment. The presented solution enables automatable, continuous monitoring of the process as well as determination of …
Density measurements of hydrogen peroxide in water with the VLO-M2 were correct within <0.05 kg/m3 using control measurements from a laboratory analyser. The measured deviations correspond to a measurement uncertainty of <0.025% (250ppm) for the concentration determination.
Microfluidic devices are becoming increasingly important in various fields of pharmacy, flow chemistry and healthcare. In the embedded microchannel, the flow rates, the dynamic viscosity of the transported liquids and the fluid dynamic properties play an important role. Various functional auxiliary components of microfluidic devices such as flow restrictors, valves and flow meters need to be characterised with liquids used in several microfluidic applications.
Flow sensors based on the calorimetric measuring principle typically have to be adjusted to a specific medium. This wink of knowledge shows that a real-time density measurement is highly suitable for correcting the measured flow value for pure gases as well as binary gas mixtures.
Design, Simulation, Fabrication and Characterization of piezoelectric MEMS Cantilever for Gas Density and Viscosity Sensors ApplicationsA. Mehdaoui¹, C. Huber¹, J. Becker¹, F. Schraner¹, L. Villanueva² ¹TrueDyne Sensors AG, Reinach BL (Switzerland), ²Ecole...
The aim of the study is to develop a compact, robust and maintenance free gas concentration and humidity monitoring system for industrial use in the field of inert process gases. Our multiparameter gas-monitoring system prototype allows the simultaneous measurement of the fluid physical properties (density, viscosity) and water vapor content (at ppm level) under varying process conditions.
MEMS technologyAt a glance In the previous section (part 2) we got to know the vibration measuring method. This section deals with the establishment of MEMS technology at TrueDyne Sensors AG. The technology has brought about the MEMS sensor, the heart of which is an...
The resonator density measurement At a glance In the previous part (1) we learned about the basics of density measurement and the definition of density. This section is dedicated to the vibration method which is also used by density sensors for density measurement....
Density measurement basics At a glance This section gives you a first insight into the basics of density measurement. You will learn that density is a temperature and pressure-dependent substance property which is often specified with the unit kg/m3 or lb/ft3. The...
A rock in the surfRethink Sensing is not only our claim but part of our DNA. Today we introduce our R&D System Engineer Dr.-Ing. Steffen Zehnle. Being active in production and keeping the projects on track Present and future - home office and production. Steffen...
MULTIPARAMETR GAS MONITORING SYSTEM COMBINING A FUNCTIONALIZED AND A NON-FUNCTIONALIZED Microcantilever
The density of a liquid depends on its composition. If different liquids are mixed, the correct mixing ratio can be checked with density measurements.
Do you know our density basic training? Download now the complete training for free.
Do you know our density basic training? Download now for free the complete training.
Do you know our density basic training? Download now the complete training for free.
We are happy to share our density know-how in the form of basic training, which we have put together for you.
Monitoring the composition of your welding gas mixture leads to better controlled processes, saves money, and ensures quality.
Going with the Flow to Optimize Fluid Sensors
Patrick Reith, R&D Project Manager MEMS of TrueDyne Sensors AG and Dr. Jana Knall, Product Manager Coriolis of Endress+Hauser had a talk about “Resonant Sensors about monitoring the quality of biogas” at the Congress Biogas on Wednesday, 31st January 2018. Are you interested to know more about it? The congress library of Biogas…
From the very beginning, TrueDyne Sensors partnered up with Hahn-Schickard in order to develop and produce their cutting-edge MEMS chips.
Find out more about this success story!
Density and viscosity of liquids and gases are determined on the basis of vibronic MEMS sensors.
