SENSORS & TRANSDUCERS FEATURE
Piezoresistive manifold low pressure sensors
First Sensor has launched a piezoresistive manifold low pressure sensor with measuring ranges from 1mbar to 7bar. Typical applications can be found in medical devices, HVAC, instrumentation as well as industrial and pneumatic controls
F
irst Sensor presents its new piezoresistive low differential pressure sensors of the HTD
series with measuring ranges from 1mbar to 7bar. The very small and flat sensors with a footprint of only 8 x 13 mm and a height of <7mm are ideal for space-saving manifold assemblies. The HTD differential pressure sensors feature digital signal processing with 15 bit resolution and an SPI interface as well as an analogue output signal. The high-accuracy and long-term stable
sensors with 3.3V or 5V 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 elaborate and error-prone tubing of individual components. For pick-and-place machines in high-volume production, the HTD sensors can optionally be supplied on 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...70°C and provide a temperature reading in addition to the pressure value. Typical applications of the HTD sensors can
be found in medical devices (ventilators, anaesthesia machines, CPAP, spirometers, oxygen concentrators), HVAC (volumetric flow controllers, filter monitoring, burner control), instrumentation as well as industrial and pneumatic controls.
First Sensor Technics
www.first-sensor.com T: 01509 503451
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SENSOR + TEST Hall 1, Stand 1-332
With the Series 9, First Sensor offers a wide range of silicon avalanche photodiodes (APDs) with very high sensitivity in the near infrared (NIR) wavelength range, especially at 905nm. With their internal gain mechanism, large dynamic range and fast rise time the APDs are ideal for LIDAR systems for optical distance measurement and object recognition according to the time of flight method. Application examples include driver assistance systems, drones, safety laser scanners, 3D-mapping and robotics. The Series 9 offers detectors as single
elements as well as linear and matrix arrays with multiple sensing elements. The package options include rugged TO housings or flat ceramic SMD packages. The slow increase of the gain of the Series 9 photodiodes with the applied reverse bias voltage allows for easy and
precise adjustments of high gain factors. For particularly low light levels, hybrid solutions are also available that further enhance the APD signal with an internal transimpedance amplifier (TIA). The integrated amplifier is optimally matched to the photodiode and allows compact setups as well as very large signal-to-noise ratios. Thanks to its own semiconductor
manufacturing facility and extensive development capabilities, First Sensor can adapt its silicon avalanche photodiodes to specific customer requirements, e.g. in terms of sensitivity, gain, rise time or design.
First Sensor Technics
www.first-sensor.com T: 01509 503451
www.first-sensor.com
We are there when smart things become standard.
Our high-precision, low pressure sensors monitor volumetric flow rates and pressures in heating, ventilation and air- conditioning systems, thus ensuring their energy-eff icient and economical operation.
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