Vibrational modes in MEMS resonators

D Platz, U Schmid - Journal of Micromechanics and …, 2019 - iopscience.iop.org
Advances in microfabrication technology have enabled micromechanical systems (MEMS)
to become a core component in a manifold of applications. For many of these applications …

Piezoelectric MEMS resonators for cigarette particle detection

J Toledo, V Ruiz-Díez, M Bertke, H Suryo Wasisto… - Micromachines, 2019 - mdpi.com
In this work, we demonstrate the potential of a piezoelectric resonator for develo** a low-
cost sensor system to detect microscopic particles in real-time, which can be present in a …

An overview of sensors and sensing materials for heavy metals in aqueous environments

KME Stewart, M Al‐Ghamdi, M Khater… - … Canadian Journal of …, 2022 - Wiley Online Library
This paper offers a critical overview of recent advancements in aqueous sensors for heavy
metals. The paper focuses on the challenges and advantages of using …

Accuracy and precision of resonant piezoelectric MEMS viscosity sensors in highly viscous bituminous materials

S Alasatri, M Schneider, J Mirwald, B Hofko… - Sensors and Actuators A …, 2022 - Elsevier
This paper reports on the dynamic viscosity analysis of bituminous materials with
piezoelectric MEMS plate-type resonators. To enable measurements even under such …

Impedance spectroscopy of Al/AlN/n-Si metal-insulator-semiconductor (MIS) structures

R Schmidt, P Mayrhofer, U Schmid… - Journal of Applied …, 2019 - pubs.aip.org
In this work, a comprehensive characterization of metal-insulator-semiconductor structures
by impedance spectroscopy is demonstrated for the case of electrically insulating, highly c …

[HTML][HTML] Mechanical and electrical characterization of resonant piezoelectric microbridges for strain sensing

M Schlögl, S Köpl, J Hiesberger, M Schneider… - Sensors and Actuators A …, 2022 - Elsevier
This work reports on a resonantly operated piezoelectric MEMS strain sensor based on a
microbridge structure. The resonator is excited with a sputtered aluminum nitride layer and …

Piezoelectric resonators and oscillator circuit based on higher-order out-of-plane modes for density-viscosity measurements of liquids

J Toledo, T Manzaneque, V Ruiz-Díez… - Journal of …, 2016 - iopscience.iop.org
We report the use of two AlN-based piezoelectric microresonators for the monitoring of
density and viscosity of liquids and its application to detect lubricant oil dilution with diesel …

Smart density and viscosity sensing based on edge machine learning and piezoelectric MEMS for edible oil monitoring

V Corsino, V Ruiz-Díez, JL Sánchez-Rojas - Sensors and Actuators A …, 2025 - Elsevier
The new industry requires embedded sensor systems that can monitor processes and
address issues quickly and intelligently. These devices must operate efficiently at any stage …

Responsivity and sensitivity of piezoelectric MEMS resonators at higher order modes in liquids

G Pfusterschmied, F Patocka, C Weinmann… - Sensors and Actuators A …, 2019 - Elsevier
Micromachined resonators completely submerged in liquids suffer from high viscous
dam** and low measurement signals compared to the operation in gaseous environment …

Tuneable Q-factor of MEMS cantilevers with integrated piezoelectric thin films

M Fischeneder, M Oposich, M Schneider, U Schmid - Sensors, 2018 - mdpi.com
In atomic force microscopes (AFM) a resonantly excited, micro-machined cantilever with a tip
is used for sensing surface-related properties. When targeting the integration of AFMs into …