tachometer

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ta·chom·e·ter

(tă-kom'ĕ-tĕr),
An instrument for measuring speed or rate; for example, revolutions of a shaft, heart rate (cardiotachometer), arterial blood flow (hemotachometer), respiratory gas flow (pneumotachometer).
[G. tachos, speed, + metron, measure]
Farlex Partner Medical Dictionary © Farlex 2012

ta·chom·e·ter

(tak-om'ĕ-tĕr)
An instrument for measuring speed or rate, e.g., revolutions of a shaft, heart rate (cardiotachometer), arterial blood flow (hemotachometer), respiratory gas flow (pneumotachometer).
[G. tachos, speed, + metron, measure]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012
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These can include a simple fuel quantity sender, or flap position sender (variable resistor) and indicator, to an electric tachometer powered by a small generator instead of the more common flexible mechanical cable between the engine and the gauge in the instrument panel.
Electronics International's R-1 ($529 list, before options) offering is the smallest of the electronic tachometers, sized to fit into a 2 1/4-inch panel opening (an adapter plate is available for 3-inch openings).
I thought that in this day and agethat this type of thing could not happen because of tachometers on buses.
Tachometers and encoders are also available for the motor.
The Lithuanians are least interested in the third option, which applies a differentiated approach to international transport and a 3-5 year transition period for cabotage.Transition periods.Although they did not feature prominently in the Brussels meetings, Lithuania is asking for transitional periods for its transport companies in three areas: financial standing, tachometers and aviation noise levels.
Meters include speedometers and tachometers; gauges include air pressure, boost, coolant temperature, engine oil pressure and oil temperature, fuel level, transmission oil and temperature and voltmeters.
New from TSI is the "Model LS200 LaserSpeed," a non-contact speed and length measurement gauge that serves as an alternative to tachometers. The LS200 is permanently calibrated and provides measurement accuracy better than plus/minus 0.1%.
The infrared light used is unaffected by ambient light conditions and enables readings to be taken at greater distances and angles of incidence than when using many other optical tachometers. The unit is self-calibrating and has separate low and high ranges for greater accuracy.
The main transitional provisions that Lithuania is seeking concern requirements on road transport (financial capacity of operators, driving time limits, tachometers), the level of noise in airports (to allow noisier planes from former USSR countries to continue to land in Lithuania), and railway rolling stock (the legacy of tanker wagons that do not meet EU standards for transport of dangerous goods will take time and money to replace).Progress to date.Most recently, attention has been paid in accession preparations to safe shipping, to enhancing safety, market access, and environmental acceptability of road transport, to upgrading railway accounting systems and infrastructure charging systems, and to market liberalisation, flight safety, and environment in civil aviation.
As an ideal low cost alternative to contact-type tachometers and encoders, the Model LS 150 will not mark or scratch the surface of the product, according to the company.
It is suitable for calibrating turbine meters, frequency counters, tachometers, vortex shedders, integrators and any other frequency devices.
The EV Series includes a full selection of mechanical, programmable or magnetically driven speedometers and mechanical, programmable or ignition-based tachometers, as well as air core pyrometers and a selection of electrical gauges.