Tag Archives: sensors

We got to hear of a citizen science project recently, where volunteers regularly sample a river and its tributaries to gather water quality information. Nitrates, for example, are measured using simple chemistry-based test kit. But pesticides need a combination of chromatography and mass spectrometry and cannot be tested in the field by an expert, let alone a citizen scientist. Part ...

This is a nice one - the "Enviro + Air Quality" which works with your Raspberry Pi. It gives you information about your local indoor environment, including air quality measurements.

Nature provides the model for integrating sensors for a distributed edge AI system, say Bartosz Boryna and Zuzana Jirankova. The horseshoe crab (limulus polyphemus) is recognised by scientists as an interesting model for vision research because the animal’s body is large enough to study and its retina neurons are quite easily accessible. The crab has several compound eyes distributed over ...

Melexis claims that its Hall-effect sensor, the MLX90394 Triaxis micropower magnetometer, balances the design trade-off between low noise, current consumption and cost. With on-the-fly selectable modes and advanced configurability, it aims to enable high reuse and fast time to market. This contactless solution is suitable for rotary, linear and 3D joystick control in gaming and industrial peripherals. Replacing mechanical solutions, ...

Melexis has added the MLX91231, a shunt-based sensing automotive current sensor for IVT (current, voltage, and temperature) and a digital microcontroller (MCU). The sensor is designed to measure low voltage electronics in vehicle safety systems. It has sensitivity drift error over temperature and lifetime below ±0.25% and a 1.5μV input referred offset drift error over the same conditions. Integrating the ...

A government contract, worth £88 million, has been placed with UK company Smiths Detection to develop chemical sensing equipment to protect UK Armed Forces. The UK’s Defence Science and Technology Laboratory (DSTL) say the sensor technology will have the capability to detect and monitor the presence of toxic industrial chemicals, including chemical warfare agents. The government describes it a first ...

Rohm has announced a high-side current sensor with a -0.2 to +26V input common-mode range and ±1.0% maximum gain error. Packaged in a 2.9 x 2.8 x 1.25mm SSOP6, BD14210G-LA senses voltage across an external high-side resistor and transfers this to a voltage relative to the 0V rail with a fixed gain of 20. Max offset is ±0.6mV (refered to ...

It's good to hear of common household tech getting recycled so cleverly: researchers turning music CDs into flexible biosensors that are inexpensive and easy to manufacture.

Infineon will be revealing two internet-connected sensor evaluation kits at the Electronica exhibition in Munich, one for 60GHz radar and one for CO2 sensing. The company has made the sensor board part of these kits compatible with AdaFruit’s ‘Wing’ format which plugs into processor boards with AdaFruit’s ‘Feather’ pin layout. Infineon has adopted the Wing format for a planned series ...

It's certainly worth checking out the winners of the “Just Encase” Design Challenge, recently run element14 community. See the OrbWeaver Rover, for example...