Sensors

Danish current sensor maker Danisense has signed a global distribution agreement with Farnell. “We believe that Farnell’s experience in many different markets and their global presence will help drive our business forward,” said Danisense marketing director Loic Moreau. Added to Farnells line-card are 23 current transducers spanning 50 to 2,000A, all based on Danisense’s closed-loop flux-gate technology. The products are ...

Microchip has introduced a touch controller family for ‘knob-on-display’ (KoD) human-machine interfaces. These interfaces add a physical ‘clicky’ knob to the front of a display without traditional rotary encoder electronics. Instead, a passive rotatable clicky knob is simply stuck to the front of the display glass (diagram right) and one or more electrodes underneath interact with the display’s existing capacitive ...

Infineon has introduced three MEMS microphones to its portfolio. IM73A135 is an analogue microphone with a differential output. It has a signal-to-noise ratio of 73dB(A), -38dBV sensitivity and a 135dB SPL (sound pressure level) acoustic overload point (AOP). Packaging is 4 x 3 x 1.2mm IM72D128 is its digital counterpart in the same package with a PDM (pulse distribution modulated) output, and a ...

NevadaNano is claiming five years of accuracy from its ‘MPS’ range of gas sensors without calibration after long-term testing. “The sensors, manufactured and calibrated in early 2017, have been running continuously for five years,” according to the company. “During this period there has been no additional calibration, and there has been no deterioration or drift, and despite regular exposure to ...

Cambridge-based Flusso has announced what it claims is the world’s smallest air velocity sensor, at 3.5 x 3.5mm. “FLS122 has been specifically developed to enable board-mounted air velocity measurements for thermal management and filter monitoring in some of the most space-constrained and challenging environments,” said Flusso. Packaging is a 6pad DFN, with a specially-designed tunnel-lid optimised, said the company, for accurate measurement ...

Sfera Labs of Milan has launched an 80 x 80mm multi-sensor edge-computer built around the Raspberry Pi RP2040 microcontroller. Called Exo Sense RP, module integrates temperature, humidity, VOC (air quality – volatile organic compounds), light and motion sensors, as well as a microphone with audio processing. RP2040 has two Arm Cortex-M0+ cores, 16Mbyts of flash and 264kbyte of ram. Clocking is ...

Danisense launched a series of ultra-stable, ppm-accuracy fluxgate current transducers at PCIM this week, that are smaller than its previous offerings. For dc and ac measurement, DT series current transducers use closed-loop compensated sensing with fixed excitation frequency and second harmonic zero flux detection for “better than 2 ppm” linearity, according to the company. Signal bandwidth is 2MHz, and a ...

LEM has created a current sensor with a sigma-delta bit stream output. To be unveiled officially at PCIM in Nuremberg next week, the sensor is aimed at applications prone to noise, distortion and interference. Called HMSR DA sensor and intended for both ac and dc sensing, it offers resolution of 11 to 13bit and has a 10MHz clock – in ...

Danisense has launched a smart version of its residual current monitor. Called SRCMH070IB+, it has a USB connection to allow residual currents to be analysed in detail on a PC using Windows-based software. Oscilloscope and FFT frequency analysis is available (right). The product is complaint with the updated norm IEC62020-1. “This means that it can used for remote monitoring without the need ...

Vishay has introduced a 12.7mm diameter rotary absolute position sensor with >11bit accuracy and 14bit resolution. Called RAME012, it is designed to cope with the harsh environments of military and industrial applications over -40 to +105°C. Operation is from 5V at <100mA and over 360° in the standard version, which has a SSI (synchronous serial interface) output – other interfaces are available. The ...