Sensors

Reflective Sensor for Medical Applications

9th March 2010
ES Admin
0
Optek's new miniature reflective object sensor provides medical electronics designers with an enhanced sensing range in space-constrained applications. Infusion and transfusion pumps and medicine dispensing equipment are two of the medical applications benefitting from Optek's new OPB733TR reflective object sensor.
The sensor measures just 0.300 x 0.160, with a PC board-mounted profile of just 0.114. It incorporates a lensed IR LED and phototransistor elements to collimate the light beam for enhanced resolution at a detection range from 0.4 (10mm) to 1.0 (25.4mm). The device is being used in tube-in-place and tube proximity hospital infusion pumps, with encoders for volumetric measurement in transfusion pumps, and as carousel/bin sensors for medicine dispensing equipment.

The OPB733TR sensor consists of an IR LED with typical peak emission wavelength of 890nm, mounted alongside a NPN silicon phototransistor, which responds to light reflected by the object being sensed. The phototransistor output on-state collector current is 0.1mA (100um) at 1/2 [12.7mm] distance from the target and a 20mA forward current and VCE of 5V. Rise and fall time for the phototransistor signal is typically 15uS. The surface mount package is reflow solder compatible to 260degC.

Product Spotlight

Upcoming Events

View all events
Newsletter
Latest global electronics news
© Copyright 2024 Electronic Specifier