A noncontact tachometer capable of measuring rotational speeds up to 10 000 revolutions per minute using a small microcontroller (μC). The microcontroller contributes most of the electronics required for the tachometer, and simplifies the design substantially. The electronic design uses only commercial components, and the facilities provided by the μC lead to a simple and inexpensive appliance.

Topics
Microcontroller, Measuring instruments
1.
M. O.
Miyake
,
Y.
Mogami
,
E.
Kataoka
,
E.
Kajita
, and
S. A.
Baba
,
Rev. Sci. Instrum.
69
,
325
(
1998
).
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2.
A. Segovia, “Diseño Digital Aplicado: Tacometro Estroboscopico Digital,” Congreso de Ciencias Computacionales, Inst. Tec. de Toluca 1, 262 (1987).
3.
HC05, MC68HC705J1A Technical Data, Motorola, Inc., 1995.
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© 1999 American Institute of Physics.
1999
American Institute of Physics
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