A theodolite is a survey instrument. A tachometer tells you how many Revs per minute an engine is turning.
5 mm is the least count of theodolite.
least count of theodolite is 1 second
An encoder is a device, circuit, transducer, software program or person that converts information from one format or code to another. A tachometer is an instrument that measures the rotation speed of a shaft or disk, as in a motor or other machine. Most commonly this is the little rev counter on your car/truck that shows you the rate of rotation of the engine's crankshaft. Or in layman's terms, the RPM gauge. Hope this helps
what is difference between lateral and longitudinal?
What is the Difference between technology innovation
when theodolite is fixed with analytic lens then it is called tachometer, without the analytic lens the instrument would be called as constant zero.
What is the difference between theodolite and total station?
What is the difference between theodolite and total station?
In dumpy level we can check only horizontal angles whereas in theodolite we can check vertical angles also.
Dumpty level can be used only for vertical measurements while a theodolite functions in both horizontal and vertical measurements.
Half of the difference between the two positions is called the "index error".
A tachometer and an auto-meter is an instrument measuring the rotation speed of a car or a motor. An auto-meter is more accurate and reliable than a tachometer.
A tacheometer is a type of theodolite used for rapid measurements. It determines the distance to the target electronically or electro-optically. Tacheometry is a system of rapid surveying that does not use chain or tape. There are times when measuring with a theodolite and measuring tape can be dangerous or impossible.A theodolite is an older surveying tool. Those were just precision optical devices used to compute angles between known fixed points, and they required using trigonometry to get the final values. However, there are modern versions of theodolites called Total Stations that are more convenient to use than even a tacheometer. These will cost you about $50,000 a piece or so.Please note that the question asks about a tacheometer (or tachymeter) which is a surveying tool, not a tachometer which measures engine speed.
Father of Theodolite
advantage and disadvantage of theodolite
Transit and non-transit theodolite.
They are the same - they are precision instruments having telescopic sights for establishing horizontal and sometimes vertical angles . In the US and Canada they are called Transit Levels, in the UK Theodolites.