tachymeter
Velocity measuring bezel
A tachymeter is an instrument for measuring speed or distance, typically a scale on the bezel of a chronograph watch that calculates speed based on time elapsed over a known distance.
Surveyors also use tachymeters—theodolites that measure distances by analyzing light signals rather than physical tape.
Interval timing device
- timerDuration-tracking mechanism
- elapsedGone by, temporally
- lapOne complete circuit
- intervalDuration between two points
timing · countdown · seconds · minutes · chronometry · timekeeping · chronograph · pulse
Grooved rim for mounting
- dialGraduated circular indicator
- crownSovereign's ornamental headpiece
- casebackRear watch enclosure
- wristwatchPortable timekeeping accessory
timepiece · automatic · mechanical · quartz · movement · caliber · complication · luminosity
Adjusting for measurement accuracy
- scaleMeasure of relative size
- readoutDisplayed recorded data
- gaugeStandard of measurement
- meterDevice that measures usage
calculation · distance · time · quantify · track · record · counter · duration
Directed rate of motion
- accelerationRate velocity changes
- momentumProduct of mass, velocity
- paceSpeed of movement
- tempoRate of musical performance
rapid · swift · quick · fast · revolutions · frequency · rate
Precision angle-measuring instrument
- transitMovement between places
- stadiaLarge open-air venues
- rangefinderInstrument measuring observer-to-target distance
- topographyPhysical feature mapping
geodesy · optical · terrestrial · triangulation · baseline
Closed electrical pathway
- trackPath or monitored route
- pitstopBrief maintenance halt
- qualifyingMeeting required criteria
- checkpointInspection station on route
motorsport · NASCAR · rally · endurance · dragstrip · sprint
stopwatch
Interval timing device
interval · timing · countdown · seconds · minutes · chronometry · timekeeping · chronograph · pulse
bezel
Grooved rim for mounting
wristwatch · timepiece · automatic · mechanical · quartz · movement · caliber · complication · luminosity · numerals
calibration
Adjusting for measurement accuracy
meter · calculation · distance · time · quantify · track · record · counter · duration · logarithmic
velocity
Directed rate of motion
- accelerationRate velocity changes
- momentumProduct of mass, velocity
- paceSpeed of movement
tempo · rapid · swift · quick · fast · revolutions · frequency · rate
theodolite
Precision angle-measuring instrument
- transitMovement between places
- stadiaLarge open-air venues
- rangefinderInstrument measuring observer-to-target distance
topography · geodesy · optical · terrestrial · triangulation · baseline
circuit
Closed electrical pathway
- trackPath or monitored route
- pitstopBrief maintenance halt
- qualifyingMeeting required criteria
checkpoint · motorsport · NASCAR · rally · endurance · dragstrip · sprint
metric, speedometer, metronome, tachycardia, tachyon, tachometers