Thermopile Sensor Schematic

Just about all parts in the diagram are as looked at from top meaning through the component angle of a pcb.

Thermopile sensor schematic.

This circuit is optimized for co 2 sensing but can also accurately measure the concentration of a large number of gases by using. Schematics layout files bill of materials source code circuit function and benefits the circuit shown in figure 1 is a complete thermopile based gas sensor using the nondispersive infrared ndir principle. A thermopile is a device that converts thermal energy into electrical voltage. Vatell corporation 2002 because it is made with thin film sputtering techniques the entire sensor is less than 2 mm thick fig.

A thin thermopile sensor called the heat flux microsensor hfm was described by hager et al. There are lots of cool applications they can be used for including motion sensors temperature probes fire alarms heat flow detectors robot sensors forge temperature monitors or low resolution thermal. 1991 and is manufactured by vatell corp. A thermocouple is an electrical device consisting of two dissimilar electrical conductors forming an electrical junction a thermocouple produces a temperature dependent voltage as a result of the thermoelectric effect and this voltage can be interpreted to measure temperature thermocouples are a widely used type of temperature sensor.

The pins on the thermopile sensor a2tpmi are vulnerable and yes it may very well be a smart idea to connect a minimum of one of the unused pins to an isolated solder pad for mechanical steadiness. Commercial thermocouples are inexpensive interchangeable.