This section provides an overview for mems contactless thermal sensors as well as their applications and principles. Also, please take a look at the list of 9 mems contactless thermal sensor manufacturers and their company rankings. Here are the top-ranked mems contactless thermal sensor companies as of March, 2024: 1.Central Manufacturing Technology Institute, 2.Guangdong Uchi Electronics Co.,Ltd, 3.Murata Manufacturing Co., Ltd..
MEMS (Micro Electro Mechanical System) is an ultra-compact system that incorporates mechanical components, sensors, actuators, and electronic circuits on a single substrate and is manufactured by applying semiconductor microfabrication technology.
While LSI integrates electronic circuits on a flat surface, MEMS integrates mechanical mechanisms in addition to electronic circuits on a wafer to form a three-dimensional shape or movable structure of a wafer.
The MEMS contactless thermal sensor is a temperature sensor based on this MEMS technology. The thermopile element receives radiant heat energy from the object to be measured, and the surface temperature of the object can be measured in a non-contact manner.
Since MEMS contactless thermal sensors can measure surface temperatures without touching the object, they are used for monitoring abnormal temperatures in transformers and distribution boards, detecting temperatures in energy-saving home appliances, security equipment such as motion sensors, and screening for persons generating heat during room entry control.
In addition, the MEMS contactless thermal sensors take advantage of the features of MEMS to achieve miniaturization and low power consumption and can be used in various fields such as HEMS (Home Energy Management System), BEMS (Building Energy Management System), and FEMS (Factory Energy Management System) for energy reduction and optimal control of facilities.
Typical MEMS contactless thermal sensors consist of a silicon lens, thermopile element, and IC for signal conversion mounted on a small substrate.
Far-infrared rays emitted from the object are focused onto the thermopile element by the silicon lens, and the thermopile element generates a thermoelectromotive force proportional to the incident energy of the far-infrared rays using the Seebeck effect.
The Seebeck effect is an effect in which an electromotive force is generated between two ends of a material when a temperature difference is applied to both ends.
Heating one side of the substance produces carriers (electrons or holes), while the cooler side produces few carriers. This causes an imbalance in carrier density and carriers flow from the hot junction side to the cold junction side, but the carrier migration eventually converges.
After the carriers flow on the hot junction side, they have an opposite charge on the cold junction side, resulting in a potential difference between the hot and cold junction. This potential difference is proportional to the temperature difference between the hot and cold junction, which is proportional to the incident energy of far-infrared radiation.
Some MEMS contactless thermal sensors output the potential difference generated by the thermopile element as a bit value by A/D conversion, while others output the bit value as temperature data by further complementary calculation.
*Including some distributors, etc.
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Murata Manufacturing Co., Ltd. (Murata Manufacturing) was founded in 1944 and is headquartered in Nagaokakyo, Japan. Murata Manufacturing designs, manufactures, and sells ceramic-based passive electronic components and solutions globally. The company operates through components, modules, and others segments, serving communications, mobility, industrial, healthcare, and personal electronics customers. They company's product offerings include noise suppression products, quartz devices,RFID devices, phase shifters, and wireless connectivity platforms. Services such as webinars and video library are also available for existing and potential customers alike.
TDK Corporation, established in 1935, is a manufacturer of electronic solutions for the smart society based in Tokyo, Japan. The company is a part of the TDK Group, which has over 250 locations in more than 30 countries worldwide and employs over 103,000 people. They offer a wide range of products, including sensors, power supplies, and magnetic application products. The robotics industry is evolving at a rapid pace, and they are now offering , a robot development platform equipped with a variety of sensors essential to the accurate operation of robots, enabling more efficiency across a wide range of robot development.
Melexis NV, founded in Brussels, in 1989 is a supplier of micro-electronic semiconductor solutions. The company's product portfolio includes Mixed Signal Integrated Circuits, Automotive Semiconductors, IC Sensors, Power ICs for Automotive Actuators, and Infrared Thermometers and sensors. The company serves markets including Automotive and Electric Vehicles, Renewable Energy and Energy Storage and Electronics and IT Infrastructure. The company has a global distribution channel, a technical and customer support center and 18 offices worldwide.
X-FAB is a manufacturer and supplier of semiconductor solutions with manufacturing facilities in Germany, France, Malaysia, and the United States. Established in 1992, the company provides foundry services to customers worldwide, enabling them to bring their semiconductor designs to life. X-FAB manufactures analog and mixed-signal ICs which are crucial components in numerous industries such as automotive, industrial, consumer, medical, and Internet of Things (loT). They were awarded the "2019 Foundry of the Year" by EuroAsia Semiconductor magazine and the "2018 European Foundry of the Year" by WEKA Fachmedien.
ST Micro Electronics is a global semiconductor company serving customers with innovations to have a positive impact on people's lives. Their product line is micro electronic systems, such as switches, controllers, sensors and drivers. The main selling point of ST Micro Electronics is its provision of sustainable products, and introducing their electronics to create a more sustainable world. The company, as well as providing the electronic devices, also provides software and support, ensuring that all fields are covered to provide a fully provide a supported and strong relationship with their customer base. ST Micro Electronics believe that technology plays a key role in helping to solve environmental and social challenges, which is why their semiconductor technologies start with their employees, their customers and partners.
OMRON Corporation is a Kyoto based electrical equipment manufacturing company founded by Kazuma Tateisi in 1933. OMRON’s product portfolio includes medical equipment like nebulizers and digital thermometers, automated teller machines for the finance industry to AC, DC and custom control systems for the oil and gas industries. The company has over 30,000 employees and offers its products and services in 120 countries. It primarily serves the healthcare, energy, casino, and automated test equipment industries.
*Including some distributors, etc.
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