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Instrument and their Uses
 

Instrument and their Uses

TestFunda ,  03-Feb-16
Instruments & their Uses 

Sr.No.

Instrument name

Use of the Instrument

1

Accumulator

Device used to store energy

2

Alcoholmeter

Used in measuring the density of alcohol and police officers use the same for checking alcohol levels in drivers during road safety checkups

3

Altimeter

Common instrument used in measuring altitude and the use of the same is seen in aircrafts

4

Ammeter

Measures electric current

5

Anemometer

Measures force and velocity of wind but it is also helpful in determining the direction of wind

6

Audiometer

For evaluating the hearing ability of a person

7

Barograph

For continuous recording of atmospheric pressure

8

Barometer

To measure atmospheric pressure

9

Binocular

To view distant objects

10

Bolometer

To measure infrared or heat radiation

11

Biometer

To measure carbon dioxide produced by living bodies

12

Calorimeter

To measure exactly how much heat is released or absorbed

13

Calipers

To measure internal and external diameter of objects

14

Campbell Stokes Recorder

Records the hours of bright sunshine

15

Carburettor

For mixing up fuel and air in an internal combustion engine

16

Cardiograph

Used in tracing the movements of heart and heart beat

17

Cathetometer

For the accurate measurement of small differences of height; esp. of the differences in the height of the upper surfaces of two columns of mercury or other fluid

18

Chronometer

This is a type of clock which determines the time and longitude of a vessel at sea surface

19

Cinematograph

Its a motion picture film camera, which also serves as a film projector and developer

20

Crane

The most used machine for moving heavy objects and construction purposes

21

Crescograph

For determining the growth rate of plants

22

Cyclotron

A charged particle accelerator which can accelerate charged particles to high energies

23

Durometer

To measure the hardness of a material

24

Dynamo

Used in converting mechanical energy into electrical energy

25

Dynamometer

Measures electrical power

26

Electroencephalograph (EEC)

Records and interprets the electrical waves of the brain recorded on electroencephalograms

27

Electrodynamometer

Instrument for measuring current, voltage or power in both AC & DC circuits

28

Electrometer

Measures very small potential difference in electric current

29

Electrostatic analyzer

Used in ion optics that employs an electric field to allow the passage of only those ions or electrons that have a given specific energy

30

Electroscope

Detects presence and magnitude of electric charge on a body

31

Eudiometer

Measures the change in volume of gas mixture after a chemical or physical change

32

Endoscope

For examining internal organs of the body

33

Encephalogram

To record the electrical activity of neurons inside the brain

34

Epidiascope

Used to project the image of opaque objects

35

Evaporimeter

Also called Atmometer, its used to measure the rate of evaporation from a wet surface

36

Fathometer

To measure depth of sea in any place

37

Fluxmeter

For measuring magnetic flux

38

Galvanometer

For detecting and measuring electric currents

39

Geiger counter

Its a particle detector which also measures radiation levels

40

Gravimeter

For measuring variations in the Earth's gravitational field

41

Hail Pad

To estimate the strength of the impact of hailstones

42

Hydraulic intensifier

Its a hydraulic machine for transforming hydraulic power at low pressure into a reduced volume at higher pressure

43

Hydrometer

To measure the relative density of liquids; that is, the ratio of the density of the liquid to the density of water

44

Hydrophone

Used underwater for recording or listening to underwater sound

45

Hygrometer

For finding out the level of humidity that is used in cricket matches, climatic centers etc.

46

Hypsometer

To estimate the height above sea level

47

Infrared thermometer

To measure temperature of objects from a distance using the infrared wave emitted by the object due to thermal activities

48

Inclinometer

To measure the inclination of a surface relative to the gravity

49

Katharometer

Device for measuring thermal conductivity

50

Kymograph

For recording variations in pressure, as of the blood, or in tension, as of a muscle, by means of a pen or stylus that marks a rotating drum

51

Lactometer

To measure the relative density of milk to find its purity and in dairy farms, milk collecting centers etc.

52

Magnetometer

To measure the strength, and, in some cases, direction of the magnetic field

53

Manometer

For measuring pressure of gases

54

Mariners Compass

For determining direction. Used by mariners, ship crew, etc.

55

Micrometer

This is a gauge  which is used for accurate measurement of small distances

56

Microphone

Used in converting sound waves into electrical energy which is transmitted to wire to the desired location

57

Microscope

This instrument is used in the determination of small objects and their magnified view is made possible by the same

58

Nephelometer

Measures the scattering of light by particles suspended in a liquid

59

Net radiometer

Net radiometer is an instrument which is used to measure the net radiation

60

Neutron probe

Neutron probe is used to measure the amount of water or wetness presence in soil. It is used mainly in agriculture science

61

Odometer

This is same as a speed tracer as it is used in finding out the distance travelled by wheeled vehicles

62

Ohmmeter

Measures electrical resistance

63

Oscillograph

Oscillograph is an instrument which is used to measure and record a varying electric current also called alternating current

64

Periscope

The instrument is commonly in hands of sub – mariners and it is used for vision of objects above the sea level from the down part of sea

65

Phonometer

This is useful in finding out the intensity of sound

66

Photometer

This is used in comparison of luminous intensity of the sources of light

67

pH meter

pH meter is an instrument which is used to measure the pH or acidity and alkalinity of a liquid

68

Planimeter

Used to determine the area of an arbitrary two-dimensional shape

69

Polygraph

Instrument that simultaneously records change in physiological processes such as heartbeat, blood pressure and respiration-used as a lie detecter

70

Potentiometer

Potentiometer is used to measure the electrical state between two objects.  It is also used as variable resistance

71

Pyknometer

To measure the density and co-efficient of expansion of liquid

72

Pyranometer

Used to measure short wave radiation which is very energetic

73

Pyrheliometer

To measure solar radiations

74

Pyrometer

Measure very high temperature

75

Quadrant

To measure altitudes and angles in navigation and astronomy

76

Radar

Radar is an instrument to detect the presence and shape of objects in it’s range using microwave

77

Radiator

Radiator is an instruments which dissipates heat from engines

78

Radio micrometer (Radiometer)

To measure heat radiations

79

Refractometer

To measure the refractive index of a substance

80

Resistance Thermometer

An accurate type of thermometer in which temperature is measured by determining the electrical resistance of a coil of thin wire

81

Rain Gauge

A rain gauge measures the amount of rainfall. The standard rain gauge consists of a long, narrow cylinder capable of measuring rainfall up to 8 inches

82

Rotameter

Used to measure the rate of flow of fluids or liquid and gas inside a closed tube

83

Saccharimeter

To measure the amount of sugar needed and the amount of sugar dissolved in a solution

84

Salinometer

To determine the concentration of salt solutions by measuring their densities. It is a type of hydrometer

85

Seismometer

This is used in recording the intensity and origin of earthquakes and also useful in richer scale

86

Sextant

Used to measure the angular distance between two objects

87

Solar cell

Cell that converts solar energy into electrical energy

88

Spectroscope

To analyse spectrum of light

89

Spectrometer

Measures the spectral line and is useful in spectrometry and is used in many purposes like identification of elements

90

Speedometer

Measures the speed of motor vehicles and also to find the speed limit of driving

91

Sphygmomanometer/

sphygmometer

Used for checking the blood pressure

92

Spring balance

To measure the mass of a body and is preferred only when quick but approximate determinations are to be carried out

93

Stereoscope

To see two dimensional pictures as having depth and solidity

94

Stroboscope

Used to make a cyclically moving object appear to be slow-moving, or stationary

95

Stethoscope

The instrument used by Doctors to find out the heart and lung sounds but helpful in their analysis too

96

Stopwatch

To measure small duration of time in sports events etc.

97

Tachometer

To determine speed, especially the rotational speed of a shaft (Used in aeroplanes and motor-boats)

98

Tacheometer/Tachymeter

Used to measure distances, elevations and bearings during survey

99

Tangent galvanometer

To measure the strength of direct current

100

Telemeter

Records physical happenings at a distant place

101

Teleprinter

Used to send and receive typed messages from point to point and point to multipoint over various types of communications channels

102

Telescope

Used in astronomical studies and helps in viewing distant objects and can be also magnified

103

Tensiometer

Used to measure the surface tension of liquids

104

Thermometer

Used in measurement of temperature

105

Thermostat

Senses the temperature of a system so that the system's temperature is maintained near a desired setpoint

106

Theodolite

Measures horizontal and vertical angles

107

Tonometer

Measures the pitch of sound

108

Transponder

Used to receive a signal and transmit an reply immediately

109

Udometer

Used by meteorologists and hydrologists to gather and measure the amount of liquid precipitation over a set period of time

110

Urinometer

Used for determining urine specific gravity

111

Venturimeter

Measures rate of flow of liquids

112

Viscometer

Used to measure the viscosity of a fluid

113

Voltmeter

Used for measuring electrical potential difference between two points in an electric circuit

114

Wattmeter

Measures the power of an electric circuit

115

Wind vane

Used to find the direction of wind


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