Design of a Low-Cost Contact-Less Digital Tachometer with Added Wireless Feature
Nitin Singh1, Raghuvir S. Tomar2
1Nitin Singh, Department of Electronics and Communication Engineering, The LNM Institute of Information Technology, Jaipur (Rajasthan), India.
2Raghuvir S. Tomar, Department of Electronics and Communication Engineering, The LNM Institute of Information Technology, Jaipur (Rajasthan), India.
Manuscript received on 8 December 2013 | Revised Manuscript received on 18 December 2013 | Manuscript Published on 30 December 2013 | PP: 21-23 | Volume-3 Issue-7, December 2013 | Retrieval Number: G1375123713/13©BEIESP
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© The Authors. Blue Eyes Intelligence Engineering and Sciences Publication (BEIESP). This is an open access article under the CC-BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/)
Abstract: This paper proposes a hardware design of an “Digital Contact-less Tachometer” based on IR sensor for measuring the Revolutions Per Minute (RPM) of a rotating object. Conventional tachometers require direct contact with the rotating object which may affect its RPM and thus affecting the accuracy of the tachometer. This Tachometer design allows the measurement of the RPM without any direct contact with the rotating object. For more stable and accurate results a new algorithm is also proposed in this paper which allows the results to be displayed within a second. The design is also capable of sending RF signals which allows one to send the measured values to a distant place for its further processing. The RF feature also facilitates the data logging for monitoring and controlling the varying values of the RPM. The circuit design is simple, cheap and provide reliable results. Its stability and reliability has been verified through experiments.
Keywords: IR Sensors, Opto-coupler, RPM, Tachometer, Rotating object.
Scope of the Article: Heterogeneous Wireless Networks