Speed Meters: An Overview

Every day each of us encounters such a thing as "speed". This can be the speed of movement of a person or mechanical means, wind or water, linear or rotating. There are many examples. AND Each indicator requires a separate measurement method. This article presents an overview of instruments such as speed meters.

It turns out that there are a lot of such devices. Some are designed to measure the speed of movement of vehicles, others - to characterize the movement of liquids or gas through pipelines, the third - to measure the speed of the wind. However, there are a number of specific devices that have a very narrow direction. These are, for example, devices that measure the speed of blood clotting or meters for the speed of oscillation of hard surfaces in the range of ultrasonic frequencies. There are many others. In this article we will briefly review the main of such devices, as they are called and for what are intended.

So, let's start our review:

1. Anemometer. This meteorological device is a meter of wind speed and gas flow. It consists of a blade or cup turntable fixed to an axis, which is connected to a measuring mechanism.

2. Anemorumbometer. This device, like the previous one, is also intended for measuring the speed and direction of wind and gas.

3. Atmometer. This device is designed to measure the evaporation rate of a liquid.

4. Velosimeters. These are meters of the speed of oscillation of solid surfaces in the ultrasonic range.

5. Turntable. This device is designed to measure the speed of flow of rivers.

6. Hemodromograph. This is one of the first devices to be used to determine the rate of movement of arterial blood.

7. Hemocoagulograph. This device is designed to measure the speed of blood clotting.

8. Gyrotachometer - a mechanism for measuring angular velocities.

9. Deslerometer - a device designed to measure the decrease in the speed of various vehicles.

10. Micro anemometer is a device used for measuring wind speed.

11. Neurotrachometer. This is a mechanism for measuring speed, as well as the duration of successive or single limb movements.

12. Nefoscope - a measure of the speed and direction of the clouds.

13. Perspectometer. It has another name - "wave-meter-perspectometer". It is used for measuring various elements of waves: length, height, period, speed, and also the direction of propagation.

14. Pneumotachometer is a device for measuring the maximum space velocity of air streams with forced inspiration or expiration.

15. Radar - location device. In a particular case it is used as a vehicle speed meter.

16. The radio reflexometer is a mechanism for remote measurement of the speed of a reflex reaction. Has the function of transmitting information over a radio channel.

17. Stopwatch - a household appliance for measuring the time of various processes.

18. The spectromotor is an astronomical device used to measure the difference in the radial values of the velocities of two stars. He uses the Doppler effect for a relative shift of the spectral lines of stars in the spectra by combining photos on the screen.

19. Speedometer - a measure of the speed of movement of land vehicles, as well as the distance traveled.

20. Tachymeter - a device designed to measure the speed of the flow of liquids.

21. Tachogenerator - a mechanism that determines the speed of rotation.

22. Tachometer - the same as the previous mechanism, used to measure speed and speed.

23. Thermo-anemometer - a meter for the flow rate of liquids and gases.

24. Electrospirograph is a device used to determine and graphically record the value of the volumetric rate of exhalation or inspiration.

25. Effusiometer is a device designed for automatic detection and measurement of gas density.

Here we are in a nutshell and examined various speed meters and determined the purpose of each of them.