First Sensor presents its piezoresistive low differential pressure sensors HTD series with measuring ranges from 1 mbar to 7 bar. The very small and flat sensors with a footprint of only 8 x 13 mm and a height of <7 mm are suitable for space-saving installation in manifolds (Manifolds).
The HTD differential pressure sensors feature digital signal processing with 15 bit resolution and an SPI interface as well as an analogue output signal. High accuracy and long-term stable sensors with 3,3 V or 5 V power supply are suitable for battery-powered applications in mobile and portable devices. In manifold modules, the SMD miniature sensors allow a compact arrangement without the laborious and error-prone tubing of individual components. For automatic placement machines in mass production, they can optionally be supplied as blister belts on rolls (tape and reel). Additional output signals such as I²C bus, 1-Wire, alarm outputs or pulse width modulation are available on request. The sensors are temperature compensated from 0 ° to 70 ° C and provide a temperature reading in addition to the pressure value.
Typical applications of HTD sensors can be found in medical technology for respirators, anesthesia machines, CPAP, spirometers, oxygen concentrators, in air conditioning technology such as volumetric flow controllers, filter monitoring, burner control and in metrology and industrial control technology.