Accumulator
To view distant objects
Device used to store energy
To measure infrared or heat radiation
Sphygmometer
Used for checking the blood pressure
To see two dimensional pictures as having depth and solidity
This converts solar energy into electrical energy
Refractometer
This instrument dissipates heat from engines
To measure heat radiations
To measure the refractive index of a substance
Phonometer
This is used in comparison of luminous intensity of the sources of light
This is useful in finding out the intensity of sound
Used to find the direction of wind
Theodolite
Measures horizontal and vertical angles
Used to measure the surface tension of liquids
Senses the temperature of a system
Urinometer
Measures the power of an electric circuit
Used for determining urine specific gravity
To analyse spectrum of light
Stethoscope
Used for checking the blood pressure
To measure infrared or heat radiation
An instrument used to find out the heart and lung sounds but helpful in their analysis too
Stopwatch
To measure small duration of time in sports events etc
Measures the speed of motor vehicles and also to find the speed limit of driving
To see two dimensional pictures as having depth and solidity
Wattmeter
Used for determining urine specific gravity
Measures the power of an electric circuit
Used to measure the rate of flow of fluids or liquid and gas inside a closed tube
Planimeter
This is used in comparison of luminous intensity of the sources of light
Measures electrical resistance
Used to determine the area of an arbitrary two-dimensional shape
Manometer
To measure the strength, and, in some cases, direction of the magnetic field
For measuring pressure of gases
To estimate the height above sea level
Hydrophone
Used underwater for recording or listening to underwater sound
Measures the scattering of light by particles suspended in a liquid
Net radiometer is an instrument which is used to measure the net radiation
Hail Pad
Used to project the image of opaque objects
To record the electrical activity of neurons inside the brain
To estimate the strength of the impact of hailstones
Endoscope
For examining internal organs of the body
For measuring magnetic flux
For detecting and measuring electric currents
Crescograph
For evaluating the hearing ability of a person
For determining the growth rate of plants
Measures electric current
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