Search research articles

Related Concept Videos

Operational Amplifiers

Operational Amplifiers

The operational amplifier, often referred to as an op-amp, is a multifaceted building block of a circuit. This electronic component functions like a voltage-controlled voltage source and can also be used to create a voltage- or current-controlled current source. The design of an operational amplifier enables it to execute mathematical operations when external components like resistors and capacitors are linked to its terminals. An op-amp has the capacity to sum signals, amplify a signal,...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

Homogeneity and Thermal Stability of Sputtered Al<sub>0.7</sub>Sc<sub>0.3</sub>N Thin Films.

Materials (Basel, Switzerland)·2023

Same author

A Self-Referenced Refractive Index Sensor Based on Gold Nanoislands.

Sensors (Basel, Switzerland)·2023

Same author

Direct growth of few-layer graphene on AlN-based resonators for high-sensitivity gravimetric biosensors.

Beilstein journal of nanotechnology·2019

Same author

Effects of compensating the temperature coefficient of frequency with the acoustic reflector layers on the overall performance of solidly mounted resonators.

Ultrasonics·2016

Same author

Tungsten Oxide Layers of High Acoustic Impedance for Fully Insulating Acoustic Reflectors.

IEEE transactions on ultrasonics, ferroelectrics, and frequency control·2015

Same author

High-acoustic-impedance tantalum oxide layers for insulating acoustic reflectors.

IEEE transactions on ultrasonics, ferroelectrics, and frequency control·2012

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Search research articles

Related Experiment Video

Updated: Jun 26, 2025

Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters

Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters

Published on: February 4, 2018

Dual-Mode Solidly Mounted Resonator-Based Sensor for Temperature and Humidity Detection and Discrimination.

José Manuel Carmona-Cejas¹, Teona Mirea¹, Ricardo Hervás-García¹

¹CEMDATIC-ETSI Telecomunicación, Universidad Politécnica de Madrid, 28040 Madrid, Spain.

Sensors (Basel, Switzerland)

|May 11, 2024

Summary

This study introduces a dual-mode solidly mounted resonator (SMR) sensor to distinguish humidity from temperature effects. The SMR sensor effectively decouples environmental factors, improving sensing accuracy for various applications.

Keywords:

AlN bulk acoustic wave humidity sensors temperature control

More Related Videos

Exploring the Effects of Atmospheric Forcings on Evaporation: Experimental Integration of the Atmospheric Boundary Layer and Shallow Subsurface

Exploring the Effects of Atmospheric Forcings on Evaporation: Experimental Integration of the Atmospheric Boundary Layer and Shallow Subsurface

Published on: June 8, 2015

Manufacturing Simple and Inexpensive Soil Surface Temperature and Gravimetric Water Content Sensors

Manufacturing Simple and Inexpensive Soil Surface Temperature and Gravimetric Water Content Sensors

Published on: December 21, 2019

Related Experiment Videos

Last Updated: Jun 26, 2025

Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters

Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters

Published on: February 4, 2018

Exploring the Effects of Atmospheric Forcings on Evaporation: Experimental Integration of the Atmospheric Boundary Layer and Shallow Subsurface

Exploring the Effects of Atmospheric Forcings on Evaporation: Experimental Integration of the Atmospheric Boundary Layer and Shallow Subsurface

Published on: June 8, 2015

Manufacturing Simple and Inexpensive Soil Surface Temperature and Gravimetric Water Content Sensors

Manufacturing Simple and Inexpensive Soil Surface Temperature and Gravimetric Water Content Sensors

Published on: December 21, 2019

Area of Science:

Materials Science
Sensor Technology
Physical Chemistry

Background:

Solidly mounted resonators (SMRs) offer high sensitivity, fast response, and low cost for sensing.
A key challenge for SMR sensors is cross-sensitivity to environmental factors like temperature and humidity.
Accurate environmental sensing requires methods to decouple these interfering factors.

Purpose of the Study:

To develop a method for discriminating humidity variations from general frequency response in SMR sensors.
To utilize a specifically manufactured dual-mode SMR to achieve this discrimination.
To demonstrate the reproducibility of the proposed method across different environmental conditions.

Main Methods:

Fabrication of a solidly mounted resonator (SMR) designed to operate in a dual-mode with two closely spaced resonances.
Characterization of the frequency response of both resonances under varying humidity and temperature conditions.
Analysis of the differential response of the two modes to isolate humidity effects from temperature effects.

Main Results:

The dual-mode SMR exhibited similar responses to humidity for both resonances (-1.94 kHz/(%RH) and -1.62 kHz/(%RH)).
Significant differences in temperature response were observed between the two modes (2.64 kHz/°C vs. 34.21 kHz/°C).
This differential response enabled straightforward decoupling of humidity and temperature influences.

Conclusions:

A dual-mode SMR sensor effectively distinguishes humidity variations from temperature fluctuations.
The proposed method allows for accurate humidity sensing by mitigating cross-sensitivity issues.
The sensor's performance is reproducible across a range of temperatures (-20 °C to room temperature).