piezoelectric

How Resonant MEMS Temperature Sensors Achieve High-Precision Meteorological Monitoring?

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How Resonant MEMS Temperature Sensors Achieve High-Precision Meteorological Monitoring?

In meteorological monitoring, industrial control, and scientific research, temperature is a critical parameter. Traditional temperature sensors such as thermocouples, thermistors, and semiconductor temperature sensors, while widely used, have issues such as the need for analog-to-digital conversion, weak anti-interference capability, and poor compatibility with modern integrated circuit processes. In recent years, resonant temperature sensors based on … Read more

Main Technical Approaches of Flexible Tactile Sensors

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Main Technical Approaches of Flexible Tactile Sensors

A tactile sensing array is a tactile sensor composed of multiple tactile sensing units. Each tactile sensing unit can measure the contact force at a single point, while the tactile sensing array, by integrating multiple sensing units, has the capability to detect distributed contact forces. Currently, there are various methods to implement tactile sensing, which … Read more

Piezoelectric Accelerometers: Principles, Structure, and Selection Guide

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Piezoelectric Accelerometers: Principles, Structure, and Selection Guide

Piezoelectric accelerometers operate based on the piezoelectric effect, generating charge signals through the inertial force acting on the piezoelectric element from a mass block, achieving electromechanical conversion of acceleration. 1、Working Principle and Core Mechanism The core principle of piezoelectric accelerometers is to utilize piezoelectric materials to convert mechanical vibrations into electrical signals. The specific process … Read more

Main Technical Routes of Flexible Tactile Sensors

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Main Technical Routes of Flexible Tactile Sensors

A tactile sensor array is composed of multiple tactile sensing units. Each tactile sensing unit can measure the contact force at a single point, while the tactile sensor array, by integrating multiple sensing units, possesses the capability to detect distributed contact forces. Currently, there are various methods to implement tactile sensing,which can be categorized based … Read more

AFM: Breakthrough in Dynamic Pressure Monitoring with Self-Powered Flexible Sensor Arrays

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AFM: Breakthrough in Dynamic Pressure Monitoring with Self-Powered Flexible Sensor Arrays

Click the blue text above to subscribe. In the field of smart healthcare, real-time monitoring of dynamic pressure changes in the human body has always been a research hotspot. Recently, Prof. Wu Yuxiang from Jianghan University, Prof. Li Yusheng from Xiangya Hospital, and Researcher Li Zhou from the Beijing Institute of Nanoenergy and Nanosystems, Chinese … Read more

Energy Harvesting in Wearable Technology

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Energy Harvesting in Wearable Technology

Click the Blue Text to Follow Us SUBSCRIBE to US WEI GAO/CALTECH Wearable devices, like almost all other technologies, require energy. Fortunately, energy is actually ubiquitous under the moderate power budget of wearable devices. It exists in sunlight and radio waves, sweat and body heat from the skin, and the movements and footsteps of a … Read more

Understanding Piezoelectric Sensors

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Understanding Piezoelectric Sensors

Piezoelectric sensors can measure various dynamic forces, mechanical impacts, and vibrations, and are widely used in acoustics, medicine, mechanics, and navigation. They are characterized by their small size, light weight, high frequency response, and large signal-to-noise ratio. Piezoelectric Sensor The working principle of piezoelectric sensors is based on the piezoelectric effect of certain dielectric materials, … Read more

Identifying Popular Sensors on Robots

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Identifying Popular Sensors on Robots

Sensors are common yet very important devices thatperceive various measured quantities according to specified standards and convert them into useful signals according to certain rules. For sensors, depending on the input state, inputs can be divided into static quantities and dynamic quantities. We can obtain the static characteristics of a sensor based on the relationship … Read more

Oxygen Vacancy Piezoelectric Nanosheets for Ultrasound Tumor Therapy

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Oxygen Vacancy Piezoelectric Nanosheets for Ultrasound Tumor Therapy

Piezoelectric Dynamic Therapy (PzDT) is a tumor treatment method that utilizes mechanical energy to trigger the polarization of piezoelectric materials. Under the action of ultrasound (US), the immense pressure generated by the collapse of cavitation bubbles serves as a mechanical force source for the piezoelectric sonosensitizer, showing feasible potential. An internal electric field can form … Read more

Piezoelectric Vibration Sensor for Aircraft Engine Health Management

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Piezoelectric Vibration Sensor for Aircraft Engine Health Management

01 Overview Disadvantages of Existing Technology: The gear in the aircraft engine, as a key component for power transmission, can lead to fuel line issues and power interruptions if it fails, posing a serious risk to flight safety. Therefore, condition monitoring is particularly important. Current gear fault detection methods rely on vibration sensors, but aircraft … Read more