| Altimeter |
To measure the altitude. |
| Ammeter |
To measure the flow of
electric currents |
| Anemometer |
To measure the force or speed
of the wind. |
| Audiometer |
To measure the intensity of
sound. |
| Barometer |
To measure the atmospheric
pressure. |
| Baroscope |
To record the variation in
pressure. |
| Bean fort Scale |
To measure the scale of wind
velocity. |
| Binocular |
To see distant objects more
clearly. |
| Calorimeter |
An Instrument to measure the
amount of heat. |
| Callipers |
To measure the internal and
external dia: of a tube. |
| Cardiograph |
An instrument to record the
beats of heart. |
| Crescograph |
To measure the growth of
plants. |
| Conograph |
To measure the speed of
Missiles. |
| Electroscope |
To measure the electrostatic
charge. |
| Electroencephalograph |
(E. E. G) To record
electric current passing through the brain. |
| Epidiascope |
To project slides and opaque
objects like graphs maps etc on screen. |
| Fathometer |
To measure the depth of water
( 1 fathom = 6 ft ) |
| Galvanometer |
To measure electric currents. |
| Geiger Counter |
To detect and count nuclear
particles and radiation. |
| Gravimeter |
To measure the quantity of oil
under water. |
| Gyroscope |
To illustrate dynamics of
rotating bodies. |
| Hogshed |
To measure the quantity of
wine. |
| Hydrometer |
To find out relative density
of liquids. |
| Hygrometer |
To measure the humidity of
atomsphere. |
| Hydrophone |
To record the sound under
water. |
| Lactometer |
To find out the proportion of
water in milk. |
| Manometer |
To determine the pressure of a
gas. |
| Mariner's Compass |
To find out the direction of
the ship in the sea. |
| Microscope |
To magnify tiny objects. |
| Microphone |
A device used in sound
reproduction systems for converting sound in to electrical energy. |
| Nephoscope |
To measure the speed, altitude
and direction to the clouds. |
| Odometer |
To measure the distance
covered by a vehicle. |
| Periscope |
To observe objects on the
surface from the submarine. |
| Photometer |
To measure the intensity of
light. |
| Polarimeter |
To measure the optical
activity. |
| Pyrometer |
To record high temperature
from great distance. |
| Phonograph |
To re-produce the recorded
sound. |
| Rackometer |
To measure the speed of a
plane. |
| Raingauge |
To record the rainfall at a
particular place. |
| Radiometer |
To measure the intensity of
radiation. |
| Rectifier |
An apparatus for condensing a
hot vapour to a liquid in distillation. |
| Sachrometer |
To determine the sugar
concentration in a liquid. |
| Sesimograph |
To measure the origin of earth
quake shocks. |
| Sesimometer |
To measure the intensity of
the earth quake. |
| Spectrometer |
To measure the energy
distribution of radiation. |
| Speedometer |
To indicate the speed of a
vehicle. |
| Stethoscope |
To find out the beat of heart
and lungs. |
| Stereoscope |
To see the photos taken by two
cameras placed at two different angles. |
| Spring Balance |
To measure the accurate
weight. |
| Sextant |
To measure the altitude of
celestial bodies and their angular distance. |
| Stopwatch |
Type of watch used for timing
sports events accurately. |
| Tachometer |
To determine the revolution
per minute of an engine. |
| Thermometer |
To measure the temperature of
a human body. |
| Telescope |
To observe the distant
objects. |
| Teleprinter |
To get printed the message
received through telegraph. |
| Telephone |
An electrical device for
transmitting speech. |
| Thermostat |
To regulate the temperature to
a particular degree. |
| Ultrasonoscope |
To measure the ultrasonic
sound. |
