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Using optical fibers for temperature measurement, Part 3: Variations

April 8, 2021 By Bill Schweber Leave a Comment

Among the many ways to sense temperature, combinations of advanced optical principles used with optical fibers offer very different approaches, with application advantages and implementation limitations. The previous part of this article looked at two approaches to using optical fibers for temperature sensing based on the fiber Bragg grating (FBG) and the Mach-Zehnder interferometer (MZI). […]

Filed Under: Featured, fiber optic, Frequently Asked Question (FAQ), Other, Temperature Tagged With: FAQ

Using optical fibers for temperature measurement, Part 1: Context

April 6, 2021 By Bill Schweber Leave a Comment

Among the many ways to sense temperature, combinations of advanced optical principles used with optical fibers offer very different approaches, with application advantages and implementation limitations. Temperature is the most widely sensed physical parameter; it’s that simple. What’s not simple is the many ways we have of measuring it through the use of sensors such […]

Filed Under: Featured, fiber optic, Frequently Asked Question (FAQ), Other, Temperature Tagged With: FAQ

How can CO2 sensing help overcome COVID-19?

March 31, 2021 By Randy Frank

One sensing tool that has played an important role since the beginning of COVID-19 is data logging. Data loggers use a wide variety of sensors to measure everything from temperature to illuminance.  One specific type of data logger equipped with a CO2 sensor has been used since the beginning of the pandemic to monitor and […]

Filed Under: Covid-19, Featured, Frequently Asked Question (FAQ), Gas Sensor Tagged With: tandd

What is the difference between a pressure sensor and a load cell?

March 29, 2021 By Randy Frank

A load cell is a type of force sensor and it has a direct relationship to pressure, since: pressure = force/area                                    Eq. 1 The load cell’s electrical output is proportional to the mechanical force applied to it. The force can be hydraulic or pneumatic and the transducer is normally based on strain gauges. Other types […]

Filed Under: Featured, Frequently Asked Question (FAQ), Load cell, Pressure Sensor Tagged With: omega engineering

How have drone sensors advanced?

March 25, 2021 By Randy Frank

Large Predator B drones, built by General Atomics Aeronautical Systems and first flown in 2001, are used by the military to perform multi-mission Intelligence, Surveillance and Reconnaissance (ISR) missions over land or sea. Sensing payloads in the MQ-9A Predator B remotely piloted aircraft (RPA), include: Multi-Spectral Targeting System Model B (MTS-B) Electro-optical/Infrared (EO/IR), Lynx multi-mode […]

Filed Under: Featured, Frequently Asked Question (FAQ), GPS (Global Positioning System), Image sensing Tagged With: dji

Thin film haptic actuators create high-fidelity in a localized way

March 23, 2021 By Aimee Kalnoskas

haptics

While piezoelectric haptic solutions are found in many applications, they are often large and heavy, thus shaking the entire device. KEMET’s new piezoelectric polymer film haptic actuators are thin (150 µm), flexible and conformable devices made from a proprietary, patent-protected paper-thin material, an electro-active polymer film, that enables piezoelectric effects to mimic the sense of […]

Filed Under: Flexible sensing, Force, Piezoelectric

Hall effects sensor optimized for low-field environments, normal ambient temps

March 12, 2021 By Redding Traiger

Paragraf announces a new graphene Hall Effect sensor ideally suited to battery applications, such as the electric vehicle (EV) sector. The graphene GHS01AT Hall Effect sensor is optimized for use in relatively low field environments and normal ambient temperatures. Bringing the magnetic field measurement resolution towards that of more complex magnetic sensors, yet with the […]

Filed Under: Automotive, Hall Effect, Sensors, Smart Sensors Tagged With: paragraf

Calibrated and ISO 17025-certified sensors for drugs and perishable goods transportation

March 8, 2021 By Mike Santora

Sensirion-Pharmaceutical-Transportation_KeyVisual_300dpi

Sensirion has announced its new calibrated and ISO 17025-certified humidity and temperature sensors. These sensors enable customers to achieve cost-efficient GDP-compliant supply chain monitoring of drugs, vaccines, and perishable goods. Highly regulated products, such as pharmaceutical or perishable goods, typically require special handling along their distribution chain to comply with several directives. Manufacturers are obligated […]

Filed Under: Humidity, Temperature Tagged With: Sensirion

What is the difference between active and passive RFID?

March 4, 2021 By Randy Frank

Radio-frequency identification (RFID) tags are used to track and identify personnel (including implanted RFID) and inventory/assets in warehouses, work-in-process (WIP) in manufacturing plants, animals in laboratories, on farms or in the wild and to provide access control and for automatic toll collection for vehicles in consumer as well as government applications. The RFID tag is […]

Filed Under: Featured, Frequently Asked Question (FAQ), RFID Tagged With: Sick USA

4-in-1 MEMS sensor measures gases, humidity, temperature and barometric pressure

March 1, 2021 By Redding Traiger

Whether at home, in the office, or outdoors, we need to be confident that the air around us is clean and safe to breathe – COVID-19 has clearly highlighted the importance of air quality. Due to the particulates, gases, and even airborne viruses ubiquitously present in our modern environment, poor air quality has an increasingly […]

Filed Under: Artificial intelligence (AI), Biometrics, Covid-19, Gas Sensor, Humidity, MEMS Sensor Technology, Pressure, Pressure Sensor, Sensors, Temperature Tagged With: Bosch Sensortec

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