tacheometer
tachymeter

This is marked with heights from the foot, and is graduated according to the form of tacheometer in use.

The tacheometer additionally determines, electronically or electro-optically, the distance to target, and is highly automated to even robotic in its operations.

Thus all the measurements requisite to locate a point both vertically and horizontally with reference to the point where the tacheometer is centred are determined by an observer at the instrument without any assistance beyond that of a man to hold the staff.

No. 3 combines a stop watch on one side with a tachymeter on the other.

For events that happen either very quickly or slowly, one can adjust the sixty-second tachymeter scale commonly found on watches.

A tachymeter is simply a means of converting elapsed time in seconds per unit to units per hour.

In 1959, a second version, CK 2998, was released with a black aluminum tachymeter bezel and alpha hands.

Tachymeter may refer to:

(See Tachymeter.)

The typical tachymeter scale on a watch converts between the number of seconds it takes for an event to happen and the number of times that event will occur in one hour.

The "Speedmaster" name was coined from the model's novel tachymeter scale bezel (in brushed stainless steel) and by the convention set by prior Omega brands Seamaster and Railmaster.

The function performed by a tachymeter is independent of the unit of distance (e.g. statute miles, nautical miles, kilometres, metres etc.) as long as the same unit of length is used for all calculations.