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instruments

திசெம்பர் 6, 2008

Aum
Aum
Some Scientific Instruments
 
1) Aerometer : Instrument for measuring weight and density of air and gases.
 
2) Altimeter : Instrument used in aircraft to measure altitude.
 
3) Ammeter : Instrument used to measure electrical current flowing in a circuit.
 
4) Anemometer : Instrument to measure the force and velocity of wind.
 
5) Audiometer : Instrument to measure intensity of sound.
 
6) Barometer : Instrument used to measure the atmospheric pressure.
 
7) Calorimeter : Instrument used for measuring quantities of heat.
 
8) Cardiogram : A medical instrument for tracing heart movements.
 
9) Crescograph : Instrument for use in recording growth of plants.
 
10) Dynamo : Instrument for transforming mechanical energy into electrical energy.
 
11) Fathometer : Instrument used for measuring depth of the ocean.
 
12) Geiger Counter : Instrument for recording the amount of radiation emitted by a source of radio-activity.
 
13) Hydrometer : Instrument used for measuring the specific gravity of liquids
 
14) Hydrophone : Instrument used for recording sound under water
 
15) Hygrometer : Instrument for measuring the amount of water vapours (humidity) in the atmosphere.
 
16) Kymograph : Instrument used to record graphically various physiological movements I.e., blood pressure,heart beating, study of lungs etc. In living beings.
 
17) Lactometer : Aparatus used for measuring the purity of milk.
 
18) Manometer : Apparatus used for determining the pressure of a gas.
 
19) Odometer : Instrument by which the distance covered by wheeled vehicles is recorded.
 
20) Oscillograph : Instrument for recording electrical or mechanical vibrations.
 
21) Photometer : Apparatus used to compare the illuminating power of two sources of light.
 
22) Pyrometer : Instrument for recording high temperatures froma great distance.
 
23) Radiometer : Instrument for measuring the emission of radiant energy.
 
24) Rain gauge : Apparatus for recording of rainfall at a particular piece.
 
25) Refractometer : Instrument to measure refractive indices.
 
26) Saccharimeter : Instrument for determining the amount of sugar in a solution.
 
27) Sextant : An optical instrument used for finding out the altitude of celestial bodies and their angular distances.
 
28) Sphygmomanometer : Instrument used for measuring arterial bolld- pressure.
 
29) Spherometer : Instrument for measuring curvature of surfaces.
 
30) Seismograph : Instrument used for recording earthquake shocks.
 
31) Tachometer : Instrument for determining speeds of aeroplanes and motor boats.
 
32) Thermostat : Instrument used to regulate the temperature to a particular degree.
 
33) Transformer : An electrical apparatus used to convert high voltage to low and vice versa
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

  
 
 

 
 
Aum sri sai ram
Aum
 
    

Aum

 
(¨`•.•´¨) Always
  `•.¸(¨`•.•´¨) Keep
(¨`•.•´¨)¸.•´ smiling!
  `•.¸.•´    Aum.
V.Subramanian, 
 
 
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