GK Drops

SCIENTIFIC INSTRUMENTS AND APPLIANCES

1.  Ammeter :             Instrument to measure the strength of electric current.

2.  Anemometer:   Instrument to measure the velocity and direction of wind.

3.  Barometer:       Is used for measuring atmospheric pressure.

mercury barometer

4.  Calorimeter:     Is an instrument for measuring quantities of heat 

5.  Chronometer:   Is a clock to determine longitude of a vessel at sea.

6.  Commutator:    Is an instrument to change or reverse the direction of electric current. In dynamo it is used to convert alternating current to direct current.

7.  Dynamo:          Is a device for converting mechanical energy into electrical energy.

8.  Electroscope:   Is an instrument for detecting the presence of electric charge.

9.  Galvanometer:  Is an instrument for measuring electric current.

10. Hydrometer:    Is an instrument for measuring the relative density of liquids.

11. Hygrometer:    Is an instrument for measuring the relative humidity of atmosphere.

12. Lactometer:     Is an instrument for measuring the relative density of milk.

13. Manometer:    Is an instrument to measure the pressure of gases.

14. Periscope:       Is an apparatus for viewing objects lying above the eye level of the observer and whose direct vision is obstructed. It consist of a tube bend twice at right angles and having plane mirrors at these bends inclined at angles of 45 degree to the tube.

submarine periscope

15. Pyrometers:    Are thermometers to measure high temperatures.

optical pyrometer

A sailor checking the temperature of a ventilation system

16. Quartz Clock:   Is a highly accurate clock used in astronomical observations and other precision work.

17. Spectroscope:   Is an instrument used for spectrum analysis.

18. Sphygmomanometer:     Is an apparatus for measuring blood pressure.

Mercury Sphygmomanometer

19.Tangent Galvanometer: Is an instrument for measuring the strength of direct current.

20. Voltmeter:         Is an instrument to measure potential difference between two points.