Linear variable-differential transformer (LVDT) technology’s capability to accurately measurement linear movement is used to provide a position to electrical output for pressure, acceleration and force measurements. For example, in a pressure sensor, the sensing element is a diaphragm that moves a rod or cylindrical core inside the coils of a differential transformer to change the […]
Metrol High Precision Limit Switches from AutomationDirect
AutomationDirect has added more options for high precision limit switches from Metrol. High-temperature precision limit switches have been added that provide a 10-micron accuracy and are rated for temperatures of up to 200° C. New high-vacuum resistance limit switches are high precision with an accuracy of 10 microns as well and are designed to be […]
Humidity/temperature transmitters handle hazardous environments
Vaisala launches a new next-generation humidity and temperature transmitter series to take advantage of advancements in technology and to meet and exceed current hazardous area regulations. The new Vaisala HUMICAP Intrinsically Safe HMT370EX Humidity and Temperature Transmitter Series builds on over 20 years of experience with the trusted Vaisala HMT360 series with an even more robust and […]
Battery powered inductive proximity sensor sports 70-ft range
Mercury United Electronics, Inc. announces the release of their complete Inductive Proximity Sensor System that allows operation of the sensor and the transmitter from just two +1.5V AA batteries with a typical transmission range around 70 feet, or 22 meters. The typical total current draw for the combined Inductive Proximity Sensor and RF Transmitter module [MPRF-01] is 5 […]
What are inductive proximity sensors, Part 2
The first part of this article introduced the inductive proximity sensor. This second and final part looks at some more specifics of this sensor. Q: Are there different architectures and implementations? A: Yes, there are three basic types: 1) the magnetic elements alone are in the sensor. This separates the electronics from the sensing coils […]
How can police locate where a gunshot came from?
Time is of the essence. When an active shooting occurs, the key to preventing and/or minimizing injuries and death is quickly identifying exactly where the shooter is, end the threat and then treat and transport victims. Gunshots have unique audio characteristics so microphones can detect and provide information for location analysis. With its ShotSpotter site […]
What is the difference between an absolute and incremental position encoder?
Measuring the position of a rotating shaft, speed or direction of motion typically requires a rotary encoder. The two main types of encoding techniques are: absolute and incremental encoders. The absolute encoding technique provides a specific and unique position value for every point of rotation when it is switched on. Absolute encoding is commonly achieved […]
How to design an Arduino-based EMG monitor
Electromyography (EMG) is a medical procedure that evaluates the health conditions of muscles and nerve cells. These cells transmit electrical signals that cause muscles to contract or relax. EMG is used to read these signals and plot them as numbers or graphs. Typically, EMG is performed by doctors as one part of a diagnostic tool […]
LHA-19-R series hermetically sealed AC-LVDTs
Alliance Sensors Group, a div of H.G. Schaevitz LLC, has expanded its linear position sensor line with the LHA-19-R series AC-LVDTs (Linear Variable Differential Transformers). These rugged yet high precision linear sensing devices are hermetically sealed, contactless devices with a radial connector designed for industrial and commercial applications such as factory automation, metal and paper […]
Sakor Technologies provides new dynamometer system to General Atomics Aeronautical Systems
SAKOR Technologies announces that it recently provided a dynamometer test system to General Atomics Aeronautical Systems for use in testing starters/alternators for military remotely piloted aircraft (RPA) of the Predator class and larger. The system features a 58 horsepower (Hp) AccuDyne AC 4 quadrant motoring dynamometer and other subsystems configured for starter/generator testing and is […]
Petasense launches the first 3-in-1 industrial sensor with vibration, temperature and speed
Petasense, a producer of IIoT sensors and asset reliability and optimization, launched the first industrial wired sensor that combines vibration, temperature and speed detection into a single sensor. The Vibration Sensor (VSx) plugs into the Petasense Transmitter (Tx) to detect common failures in variable speed, batch or spared assets. Until now, these assets have been […]
NewTek contactless rotary position sensors
NewTek Sensor Solutions offers the RV series of rotary position sensors that measure and provide feedback on the rotary displacement of rotating elements in industrial benchtop and test and measurement applications. While featuring a full 360° mechanical range, these RVDTs provide an output proportional to shaft rotation over a range of ±30° or more in […]
Magnet-Free inductive position sensing targets automotive motor commutation
Renesas Electronics Corporation launched its magnet-free IPS2550 inductive position sensor. Featuring improved performance and easy customization, as well as total stray field immunity, and reduced weight and form factor, the IPS2550 is ideal for use as an absolute position sensor for high-speed motor commutation in passenger cars, heavy-duty commercial and off-road vehicles as well as […]
Automotive noise-canceling sensor cuts cable weight, complexity
Molex introduced an accelerometer-based Road Noise Cancelling (RNC) sensor, the first product in a new family of automotive Active Noise Cancellation (ANC) sensors. These sensors will play a critical role in combatting unwanted road, wind and HVAC car noise while reducing low-frequency sounds that increase driver fatigue. Advancements in the electronics industry have enabled ANC technology, […]
Temperature sensors optimized for COVID-19 vaccine monitoring and storage
Swift Sensors announces the launch of its secure wireless vaccine storage unit monitoring and alert system to enable medical facilities and pharmacies to remotely monitor COVID-19 vaccine storage temperatures, automate data logging, and respond quickly in case of an equipment problem or power failure. As vaccine suppliers and public health agencies expand the number of locations […]
ams launches new family of high-speed industrial image sensors
ams, a worldwide supplier of high-performance sensor solutions, has introduced the CSG family of image sensors, enabling manufacturers to develop industrial vision equipment that achieves higher resolution at very high frame rates. The new CSG14K and CSG8K sensors, supplied in – respectively – a stand-ard 1-in. or a 1/1.1-in. optical format, allow factory operators to […]
How do you want to monitor glucose?
Many people with diabetes need to monitor their blood glucose levels. For type 1 diabetes patients, regular monitoring and insulin injections are mandatory. For type 2 patients, glucose monitoring can indicate if lifestyle changes are improving their level. According to data from 2019, approximately 9.3% of the global adult population were living with diabetes in […]
Ruggedized pressure transducers withstand radiation, fatigue and high pressures
Sigma-Netics, Inc. offers durable pressure transducers that can withstand radiation, fatigue, submersion in underwater vehicles and high pressures in excess of 30,000 PSI. Available models include: -A general industrial pressure transducer with wetted material alternatives, extended thermals, and pressure ranges to 25,000 PSI. -A radiation-tolerant MV/V pressure transducer, which features custom ATP, NDE traceability, and low […]
Advanced differential pressure sensors for industrial applications
Superior Sensor Technology announced the industry’s first differential pressure sensors for industrial applications that support up to seven selectable pressure ranges in one device. Designed for a wide range of applications, the company’s new ND Series sensors support pressure ranges as low as 62.5 Pa/0.25” H2O to as high as 345 mBar/5 psi with an accuracy within […]
What are accuracy, error and repeatability in sensors?
Accuracy and precision are commonly confused terms. In fact, ISO 5725 (1994) uses two terms “trueness” and “precision” to describe the accuracy of a measurement method. Precision identifies the grouping or closeness of the readings. In contrast, trueness indicates the closeness of the test results to a reference or true value. This is more commonly […]
High-precision, low-profile medical sensors are designed as PCBs
TDK Corporation presents a new range of highly accurate differential pressure sensors (part number B58621V*), designed as printed circuit boards. The sensors are designed for measurement ranges of 16 mbar full-scale (FS), 100 mbar FS and 7 bar FS, with an absolute accuracy of up to ±1 percent FS at temperatures from -20 °C to […]
How do you want to monitor your health measurements?
Providing options was one of the driving forces behind some of the products introduced at the virtual CES 2021. For example, Nexvoo Healthcare announced an ergonomic breathable office desk chair that featured a built-in 3D armrest with a health monitor. By pressing a single button in the armrest, it displays heart rate, blood oxygen level, […]
Contactless rotary position sensor for benchtop and test & measurement apps
NewTek Sensor Solutions offers the RV series of rotary position sensors that measure and provide feedback on the rotary displacement of rotating elements in industrial benchtop and test and measurement applications. While featuring a full 360° mechanical range, these RVDTs provide an output proportional to shaft rotation over a range of ±30° or more in […]
Non-destructive testing of composite materials
In yacht and boat building the most commonly used materials are the so-called composites. By cleverly combining the positive properties of at least two components, they often have outstanding features – some of them even specially adapted to their respective areas of application. It is hardly surprising that they are also used for high-performance applications […]
What is the difference between piezoelectric and piezoresistive pressure sensing?
Piezoelectric is the property of a material to generate a voltage when mechanical force is applied to it. In contrast, the piezoresistive effect is the property of a material’s resistivity to change when subjected to a mechanical force. In either case, the mechanical force or stress can be compression, tension or a bending force. Ceramic […]