What is the meaning of Opisometer?
Definition of opisometer : an instrument used for measuring curved lines (as on a map) and consisting essentially of a screw with a wheel-shaped nut that is made to rotate forward along the curved lines and then backward to its original position on the screw along a straight scale.
How do you use an Opisometer?
Using opisometer: Turn wheel till it sticks to pointer at side of axle, roll it along whole length of line, put it at zero of metre stick, roll it in opposite direction until it comes back and sticks to pointer again, note reading on metre stick.
What is an opisometer Class 7?
opisometer is an instrument used for measuring curved lines(as on a map) and consisting essentially of a screw with a wheel shaped nut that is made to rotate forward along the curved lines and then backward to its original position on the screw along a straight scale.
How do you use an opisometer?
What unit does an opisometer measure?
mm
Opisometer – Measure to nearest mm, when used with ruler/metre stick. They measure the length of curved lines.
Who invented the opisometer?
engineer Edward Russell Morris
Early versions of this instrument were patented in 1873 by the English engineer Edward Russell Morris. The instruments he produced were initially described as a Patent Chartometer although later versions were sold under the curious name of Wealemefna.
Which distance is shown on the dial of an opisometer?
The ground distance is indicated on the dial of opisometer. 4.
How many types of photometers are there?
Two types
Two types of photometers are used: spectrophotometer and filter photometer.
How do you maintain photometers?
Best practice maintenance tips: the lens from affecting the photometer reading. Store the instrument in a clean and dry place when not in use. Dirty or damp cloths should not be stored in the carrying case with an instrument.
What is the unit of opisometer?
What is the meaning of opisometer?
Definition of opisometer. : an instrument used for measuring curved lines (as on a map) and consisting essentially of a screw with a wheel-shaped nut that is made to rotate forward along the curved lines and then backward to its original position on the screw along a straight scale.
What does the word’opisometer’read in?
It also reads in kilometers and miles. Learn more about the word “opisometer” , its origin, alternative forms, and usage from Wiktionary.
What is the etymology of the word’meter’?
Mid 19th century. From ancient Greek ὀπίσω backwards (from ὀπι- + a suffix forming adverbs indicating direction) + -meter.
