Abstract
Miniaturized viscosity sensors operating at
frequencies in the KHz-range offer portability and results
comparable to existing lab viscometers. In this paper we will
briefly describe a viscosity measurement cell utilizing
electrodynamic-acoustic resonator sensors and provide a
modified design with interchangeable resonator cards, which
allow for ease of maintenance of the device and provides higher
measurement repeatability. Some basic experiments made with
the new resonator cards are presented, which show the clear
dependence of the resonance frequency and Q factor on viscosity.
In addition, an approach is taken to optimize the magnetic circuit
for the measurement cell using finite element simulations and
experiments. A temperature dependence comparison is made
between straight beam resonators and S shaped( Meander) beam
resonators the result of which is the adoption of the S shaped
beam design for further investigation. Finally the data processing
approach using a curve fitting function designed for low quality
factors is briefly described.
| Original language | English |
|---|---|
| Title of host publication | 2012 IEEE International Instrumentation and Measurement Technology Conference (I2MTC 2012) Proceedings |
| Place of Publication | IEEE Service Center 445 Hoes Lane Piscataway, NJ 08855-1331 USA |
| Publisher | IEEE |
| Number of pages | 6 |
| ISBN (Print) | 978-1-4577-1771-0 |
| Publication status | Published - 2012 |
Fields of science
- 203017 Micromechanics
- 202019 High frequency engineering
- 202028 Microelectronics
- 202039 Theoretical electrical engineering
- 202037 Signal processing
- 202027 Mechatronics
- 202036 Sensor systems
JKU Focus areas
- Mechatronics and Information Processing