American Journal of Sensor Technology
ISSN (Print): 2373-3454 ISSN (Online): 2373-3462 Website: Editor-in-chief: Vyacheslav Tuzlukov
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American Journal of Sensor Technology. 2014, 2(1), 7-12
DOI: 10.12691/ajst-2-1-2
Open AccessReview Article

Piston Data Telemetry in Internal Combustion Engines

K. M. Ebrahimi1, , A. Lewalski1, A. Pezouvanis1 and B. Mason1

1School of Engineering, University of Bradford, UK

Pub. Date: January 24, 2014

Cite this paper:
K. M. Ebrahimi, A. Lewalski, A. Pezouvanis and B. Mason. Piston Data Telemetry in Internal Combustion Engines. American Journal of Sensor Technology. 2014; 2(1):7-12. doi: 10.12691/ajst-2-1-2


Measuring piston crown temperature and pressure during engine development cycle is paramount. This paper presents a new development in short distance telemetry system which includes an on board power generation device. A mechatronic data acquisition system is developed whereby signal conditioning is performed by a module inside the piston and the signal passed to a Bluetooth transmitter module for wireless telemetry to a Bluetooth receiver located in very close proximity, connected to an external host PC. The Data Acquisition Bluetooth module integrates a microcontroller that reads the conditioned sensor signal and performs any other required functionality. The microcontroller firmware includes a server that collates the data and transmits them via Bluetooth to the host PC to display via a client interface. An independent power supply consisting of a rotor incorporating NdFeB magnets and a wire wound stator. As the crankshaft rotates the rotor induces an AC voltage into the stator. A rectifying circuit converts the AC voltage into a regulated DC output voltage that drives the signal conditioning and embedded Bluetooth circuits.

short distance telemetry Bluetooth piston temperature

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