What is a cup and vane anemometer?

The vane anemometer, thermal anemometer and cup anemometer (typically used in weather stations) are mostly used to measure the mean velocity, while the hot wire anemometers are usually used when turbulence characteristics are being measured, such as transverse measurements in a cross-section.

How does cup anemometer work?

The most common type of anemometer has three or four cups attached to horizontal arms. The arms are attached to a vertical rod. As the wind blows, the cups rotate, making the rod spin. The stronger the wind blows, the faster the rod spins.

How is cup anemometer made?

To make an anemometer, start by punching a hole under the rim of 4 plastic cups. Then, punch 4 holes that are equal in distance from each other in a fifth cup, and make a small hole in the bottom of the cup. Next, push 2 straws into the cup through the holes so that they’re intersecting each other.

What materials are used to make an anemometer?

What you need

  • 5 small paper cups.
  • 2 straws.
  • 1 push pin.
  • 1 pencil (with unused eraser at the end)
  • Marker.
  • Single-hole punch.
  • Scissors.
  • Masking or duct tape.

How do you make an anemometer for a school project?

Procedure:

  1. Use the hole punch to make a hole in the side of each of the 4 paper cups.
  2. Use the hole punch to make 4 holes spaced evenly around the rim of the last cup.
  3. Slide 2 of the wooden dowels through the holes in the center cup.
  4. Insert the ends of the dowels into the holes of the other cups and tape them into place.

How does a cup anemometer measure wind speed?

Use a red marker or red paint and put a large X on one of the cups. Take your anemometer outside and measure the wind speed. To do so, count the number of times the cup with the red mark passes in front of you in 30 seconds. Multiply by two to get revolutions/rotations per minute (rpm).

Who invented cup anemometer?

Dr John Thomas Romney Robinson
The four-cup velocity anemometer was invented in 1845 by Dr John Thomas Romney Robinson at Armagh Observatory, Northern Ireland.

What is vane anemometer?

The vane anemometer is a classic wind speed meter which is now very commonly used, not only outdoors, but also indoors. Easy handling makes it possible to measure airspeed quickly using the impeller anemometer.

What is an anemometer made of?

They consist of a flat plate suspended from the top so that the wind deflects the plate. In 1450, the Italian art architect Leon Battista Alberti invented the first mechanical anemometer; in 1664 it was re-invented by Robert Hooke (who is often mistakenly considered the inventor of the first anemometer).

What materials do you need to make a anemometer?

Materials:

  1. 5 small paper cups.
  2. Hole punch.
  3. Scissors.
  4. Duct tape.
  5. 3 thin wooden dowels.
  6. Empty water bottle.
  7. Stopwatch.