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Pressure Gauges

Pressure Gauges

Most pressure gauges, like those on scuba tanks, are calibrated to read zero at atmospheric pressure. Readings from such gauges are called the gauge pressure, which is the pressure relative to atmospheric pressure. When the pressure inside the tank exceeds atmospheric pressure, the gauge reports a positive value. Some gauges are designed to measure negative pressure. For example, many physics experiments must take place in a vacuum chamber, a rigid chamber from which some of the air is pumped...

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Sensitivity Enhancement of Soft Capacitive Pressure Sensors Using a Solvent Evaporation-Based Porosity Control Technique

Sensitivity Enhancement of Soft Capacitive Pressure Sensors Using a Solvent Evaporation-Based Porosity Control Technique

Published on: March 24, 2023

Recent Progress in Flexible Pressure Sensor Arrays.

Yanhao Duan^1,2, Shixue He^1,2, Jian Wu^1,2

¹National Key Laboratory of Science and Technology on Advanced Composites in Special Environments, Harbin Institute of Technology, Harbin 150090, China.

Nanomaterials (Basel, Switzerland)

|July 27, 2022

Summary

This study reviews flexible pressure sensor arrays, highlighting their design, fabrication, and applications in human-machine interfaces, healthcare, and aerospace. These high-resolution sensors offer rapid response for advanced monitoring beyond human perception.

Keywords:

flexible sensing pressure sensors sensor arrays

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Area of Science:

Materials Science
Engineering
Sensor Technology

Background:

Flexible pressure sensors are crucial for applications like aerospace, prosthetics, robotics, healthcare, human-machine interfaces, and electronic skin.
Diverse conversion principles and structural designs for flexible pressure sensors have been extensively studied.
The rise of 5G and the Internet of Things drives demand for high-resolution, sensitive flexible pressure sensor arrays.

Purpose of the Study:

To provide a brief description of current flexible pressure sensor arrays, covering design and fabrication.
To discuss recent advancements in flexible pressure sensor arrays for key applications.
To present an outlook on future challenges and opportunities in pressure sensor array technology.

Main Methods:

Review of existing literature on flexible pressure sensor arrays.
Discussion of various transduction mechanisms used in sensor design.
Analysis of fabrication techniques for flexible pressure sensor arrays.

Main Results:

Flexible pressure sensor arrays are advancing rapidly, enabling spatial pressure monitoring and trajectory mapping.
These arrays demonstrate high resolution and rapid response capabilities, exceeding human perception.
Progress has been made in adapting these sensors for human-machine interfaces, healthcare, and aerospace.

Conclusions:

Flexible pressure sensor arrays are essential for next-generation technologies requiring advanced sensing capabilities.
Continued research is needed to address existing challenges and unlock the full potential of these sensors.
Future developments will likely focus on enhancing resolution, sensitivity, and integration into various systems.