Ultrasonic sensor has rapid responsiveness for vehicle autonomy
Murata introduced an ultrasonic sensor device for deployment in automotive applications. The MA48CF15-7N exhibits high sensitivity and rapid responsiveness, said Murata. The MA48CF15-7N is housed in a hermetically-sealed package to protect against liquid ingress.
The accuracy of short / medium-range object detection mechanisms will need to increase to meet the demands of vehicle designs, said Murata. They will be needed to determine an object’s presence and gauge distances to accommodate higher levels of autonomy by emitting ultrasonic waves and detecting their reflections, explained the company.
The MA48CF15-7N is capable of covering a wide detection range, from 150mm to 5.5 metres for high obstacle detection accuracy. It generates a beam across an angle of 120 by 60 degrees. The 1100pF ±10 per cent capacitance (at 1kHz) is another important aspect, with the narrow deviation exhibited meaning that no transformer adjustment is required.
The resonant frequency is 48.2 ±1.0kHz and there is a 35 ±10 Q value for improved usability with better temperature performance. Tolerances on these two parameters are reduced by 50 per cent compared to previous Murata models, said the company, enabling much smaller variations in the detection characteristics of individual units.
Murata manufactures electronic components, modules and devices. Its complete portfolio includes ceramic capacitors, resistors / thermistors, inductors / chokes, timing devices, buzzers, sensors and EMI suppression filters. The company is also a ceramic capacitor manufacturer, specialising in Bluetooth and WiFi modules, board-mount DC/DC converters and is a manufacturer of standard and custom AC/DC power supplies.
Established in 1944, Murata is headquartered in Japan and has European offices in Finland, France, Germany, Hungary, Italy, the Netherlands, Spain, Switzerland and the UK.
