Crossword clues for tachometer
Longman Dictionary of Contemporary English
The Collaborative International Dictionary
Hydrometer \Hy*drom"e*ter\, n. [Hydro-, 1 + -meter: cf. F. hydrom[`e]tre.]
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(Physics) An instrument for determining the specific gravities of liquids, and thence the strength spirituous liquors, saline solutions, etc.
Note: It is usually made of glass with a graduated stem, and indicates the specific gravity of a liquid by the depth to which it sinks in it, the zero of the scale marking the depth to which it sinks in pure water. Extra weights are sometimes used to adapt the scale to liquids of different densities.
An instrument, variously constructed, used for measuring the velocity or discharge of water, as in rivers, from reservoirs, etc., and called by various specific names according to its construction or use, as tachometer, rheometer, hydrometer, pendulum, etc.; a current gauge.
Douglas Harper's Etymology Dictionary
speed-measuring instrument, 1810, coined by inventor, Bryan Donkin, from tacho- "speed" + -meter. Related: Tachometry.\n
Wiktionary
n. 1 A device for measuring the revolutions per minute (RPMs) of a revolving shaft, as with the driveshaft of an automobile. 2 A device for measuring or indicating velocity or speed, as of blood, a river, a machine, etc.
WordNet
n. measuring instrument for indicating speed of rotation [syn: tach]
Wikipedia
A tachometer (revolution-counter, tach, rev-counter, RPM gauge) is an instrument measuring the rotation speed of a shaft or disk, as in a motor or other machine. The device usually displays the revolutions per minute (RPM) on a calibrated analogue dial, but digital displays are increasingly common. The word comes from Greek ταχος (tachos "speed") and metron ("measure"). Essentially the words tachometer and speedometer have identical meaning: a device that measures speed. It is by arbitrary convention that in the automotive world one is used for engine and the other for vehicle speed. In formal engineering nomenclature, more precise terms are used to distinguish the two.
Usage examples of "tachometer".
But instead of slamming on the brakes, she relaxed her foot while glancing at the tachometer, then out the windshield at the driveway, then back at the tachometer.
She would start out well enough, determined to get the tachometer exactly on 1500 rpm, but the moment she looked out through the windshield, she would start pressing harder and harder on the gas, as if she were trying to catch up with something.
It is driven by a 220-volt motor connected to a tachometer which reads both meters per second and revolutions per minute.
A vibration tachometer which will indicate any speed between 50 and 150 rev.
He pushed his throttle forward and watched the tachometer needle rise from 1,500 rpms to 2,000.
Ryan pushed the motorcycle hard, watching the tachometer climb dangerously as he dodged rocks and potholes.
The tachometer peaked out as they blew past the now rolling interceptor.
He stabs the throttle and watches the tachometer needle jump up to 6000 rpms and then sag back down to a twitchy idle at 1500.
He sank into the ergonomic leather and twisted the key and the tachometer needle lifted off the pin and settled in at a comfortable idle.
Dicky told him having consulted an elaborate wristwatch that had a tachometer, a perpetual calendar programmed to allow for leap years until the year 2100 and a little moon that waxed and waned.
Turning the steering wheel to the right, he put his foot down and felt the twin turbochargers cut in, the car squatting down on the pavement as the tachometer raced up toward the 7000 rpm red-line.
Pacino found the old-fashioned tachometer meter, showing the speed of the propulsor winding up from thirty RPM to ninety.
Pacino found the tachometer gauge and pulled the throttle back, watching the needle wind down, his other eye on the depth.
Wildebeest Motor Works, with manual steering, a logarithmic tachometer, and two dangling wires where the anti-collision computer used to be.
Commander Yen Chi-tzu maneuvered the heavy airplane to the end of the runway and coaxed the old turbines to full power, his eye on the number-three engine tachometer and oil-pressure indicator.