I what's new sensors

摘要

Intelligent-sensor development company Product Innovation Limited (PIL) has unveiled its latest liquid-level sensor technology. The Hall effect sensor was designed and developed by PIL after a customer requested a sensor that would have good resolution and that would work at high temperatures and at very low power. The sensor works on the principle of a spherical float and a series of Hall effect transistors (instead of reed switches, which PIL claims can be unreliable) assembled on a long, very narrow printed circuit board. Using both software and hardware, the controller in the top of the unit is designed to avoid the inherent problems of Hall effect devices in this kind of application. Confocal displacement sensors from Micro-Epsilon are being used to measure the diameter of round and oval stainless steel pipe destined for use as catalytic converters for passenger cars. According to the company, the optoNCDT IFS 2400-20 confocal sensor has a high aperture, large standoff distance and the ability to measure reliably on a variety of different surfaces. The 2400 series devices are designed for distance and one-sided thickness measurement.