Developing a Functional Light-emitting Diode (LED) Indicator in a Heat Controlled Environment
Keywords:
Ambient, sensing, driver, environmental, LM35Abstract
The LED Temperature indicator uses the technology of converting environmental temperature to electronic signal. The operation of the LED temperature Indicator is based around a precision temperature sensing Integrated Circuit (IC), the LM35Z and the Dot/Bar Graph Display Driver, a monolithic Integrated circuit (LM3914) and other discrete electronic components. This work presented the performance/ sensitivity of the most active component (LM35) at changes in a heat controlled flask temperatures. The result obtained affirms that the linearity of the sensor component, has been set as a guide on how to use this component for heat sensing in similar applications.
References
Andrew Skipor, Argonne National laboratory, Educational Programs USA.
www.newton.dep.ani.gov/askasci/chem00/chem00070.htm.
LM35 Sensor, LM35 Datasheet, Circuit Schematic, Pinouts and Sources
http://datasheetreference.com/lm35-datasheet.html. Accessed June 24, 2011
LM35 Application Circuit Diagram - Temperature to Digital Converter http://circuitzoo.com/2010/
/03/electronics/lm35-application-circuit. Accessed June, 2011
LM35 Application Circuit Diagram. Sensor Circuit Diagram http://www.sensorcircuitdiagram.com/
/12/03/temperature-recorder June 18, 2011
Microcontroller - Wikipedia, the free encyclopedia. http://en.wikipedia.org/wiki/Microcontroller.
Accessed June 18, 2011
National Semiconductor Corporation DS005516. www.national.com
