08-03-2012, 01:45 PM
SMART IR TEMPERATURE SENSER
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1. ABSTRACT:
This paper discusses new trends in sensor technology smart sensors encompassing the principle of smart IR
temperature sensors. Today’s new IR sensor represent union of two rapidly evolving science that combine
IR temperature measurement with high speed digital technology usually associated with computer. This
instrument called as smart sensor because they incorporate microprocessor programmed to act as Tran
receiver serial for bidirectional, serial communication between manufacturing floor and computer in control
roomIn this paper we will give overview advance in smart IR temperature which includes application in
space heater.
2. INTRODUCTION:
sensors development in the form of smart sensors incorporates specific industry needs, including hardened
sensors that are resistant to specific environmental conditions, miniaturized sensors and sensor systems.
“Smart sensors answer precision sensing needs” as they move intelligence closer to the point of mesurement
and control, computation and communication towards a common goal of making it cost effective.
1.1. What is a smart sensor?
Smart sensors are information sensors. They are those devices that integrate sensors and circuits to process
information obtained from the environment without a significant human interference.
2. Smart IR Temperature Sensors
2.1. Prologue: Keeping up with continuously evolving process technologies is a major challenge for
process engineers. Add to that the demands of staying current with rapidly evolving methods of monitoring
and controlling those processes, and the assignment can become quite intimidating. However, infrared (IR)
temperature sensor manufacturers are giving users the tools they need to meet these challenges: the latest
computer-related hardware, software, and communications equipment, as well as leading-edge digital
circuitry. Chief among these tools, though, is the next generation of IR thermometers—the smart sensor.
Today’s new smart IR sensors represent a union of two rapidly evolving sciences that combine IR
temperature measurement with high-speed digital technologies usually associated with the computer.
Photo 1. The new Raytek Digital MI is the smallest smart sensor available today. All settings and monitoring
can be controlled from a remote computer in safety away from the production area.
4. Application:
4.1. Making a Space Heater Smart:
The MLX90601 IR module has two built-in, user-programmable, comparator switching circuits. By taking
advantage of the comparators, you can easily design a simple, low-cost control for either radiant or forced-air
heaters. All you need is a potentiometer and a few resistors. Just be sure to choose a location that aims the IR
sensor in the direction of the emitted heat. The modules perform all the IR signal conditioning, linearization,
and ambient temperature compensation. They are delivered with a factory calibration, but you can take
advantage of theEVB90601 configuration kit to easily change the outputs and the configuration to any
desired specs.
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