Scientific Instruments and & Usage

List of Scientific Instruments and their Usage

Wavemeter        :     To measure the wavelength of a radio wave (high frequency waves)

Wattmeter        :     To measure the power of an electric circuit

Voltmeter        :     It measures the electric potential difference between two points.

Viscometer        :     It measures the viscosity of liquids.

Vernier        :     An adjustable scale for measuring small subdivisions of scale

Venturimeter        :     Measures' flow of liquid

Udometer        :     It is used to measure the amount of liquid precipitation over a set period of time. It is also called Rain Gauge.

Transponder        :     To receive a signal and transmit a reply automatically

Transmitter        :     Used for broadcasting radio waves

Transistor        :     A small device which may be used to amplify currents and perform other functions usually performed by a thermionic valve

Transformer        :     An apparatus used for converting high voltage to low and vice-versa without change in its frequency

Transducer        :     It converts sound signals into electrical signals and vice versa

Tonometer        :     Measures pitch of sound

Thermostat        :     It regulates the temperature at a particular point.

Thermoscope        :     is used for measuring the temperature change (approximately) of the substance by noting the corresponding change in volume.

Thermometer        :     This instrument is used for the measurement of temperatures.

Theodolite        :     It measures horizontal and vertical angles.

Telstar        :     is an instrument used for transmitting wireless and television broadcasts across continents via space.

Telescope        :     It views distant objects in space.

Teleprinter        :     This instrument receives and sends typed messages from one place to another.

Telemeter        :     Records physical happenings at a distant place(space)

Technometer        :     Measures speed of rotation

Tape Recorder        :     is an apparatus which records and reproduces sound by using magnetic tapes.

Tangent galvanometer        :     Measure the amount of direct current (DC)

Tachometer        :     An instrument used in measuring speeds of aero planes and motor boats.

Stroboscope        :     It is used to view rapidly moving objects.

Stethoscope        :     An instrument which is used by the doctors to hear and analyse heart and lung sounds.

Stereoscope        :     It is used to view two dimensional pictures.

Spring Balance        :     is used to measure the mass of a body. It is preferred only when quick but approximate determinations are to be carried out.

Sphygmomanometer        :     It measures blood pressure.

Spherometer        :     It measures the curvatures of surfaces.

Speedometer        :     It is an instrument placed in a vehicle to record its speed.

Spectroscope        :     An instrument used for spectrum analysis

Spectrometer        :     It is an instrument for measuring the energy distribution of a particular type of radiation.

Sonography (Ultrasound scanning)        :     To' scan and diagnose conditions in kidneys, liver and the heart (echocardiogram)

Siesmograph        :     Used for recording the intensity and origin of earthquakes shocks.

Sextant        :     This is used by navigators to find the latitude of a place by measuring the elevation above the horizon of the sun or another star.

Seismograph        :     It measures the intensity of earthquake shocks.

Salinometer        :     It determines salinity of solution.

Saccharimeter        :     It measures the amount of sugar in the solution.

Rheostat        :     Adjustable resistor (used in applications that require adjustment of current or varying of resistance). .

Resistor        :     Regulates the flow of electrical current in an electrical circuit.

Repeater        :     is a device that receives signals in one circuit and automatically delivers corresponding signals to one or more circuits.

Refractometer        :     It measures refractive index.

Rectifier        :     An instrument used for the conversion of AC into DC.

Rain Gauge        :     An apparatus for recording rainfall at a particular place.

Radiometer        :     It measures the emission of radiant energy.

Radio Micrometer        :     is an instrument for measuring heat radiations.

Radar        :     Radio, angle, detection and range is used to detect the direction and range of an approaching aeroplane by means of radio micro waves

Quartz Clock        :     A highly accurate clock used in astronomical observations and other precision work

Quadrant        :     Measures altitudes and angles in navigation and astronomy

Pyrometers        :     are thermometers to measure high temperatures.

Pyrometer        :     It measures very high temperature.

Pyrheliometer        :     Used for measuring Solar radiation.

Pyranometer        :     Measures solar radiation

Pyknometer        :     is an instrument used to measure the density and co-efficient of expansion of liquid.

Potentiometer        :     It is used for comparing electromotive force of cells.

Polygraph        :     It simultaneously records changed in physiological processes such as heartbeat, blood pressure & the respiration (used as lie detector)

Planimeter        :     is a mechanical integrating instrument to measure area of a plane surface.

Photometer        :     The instrument compares the luminous intensity of the source of light

Phonograph        :     An instrument for producing sound.

Phonogram        :     A machine used to reproduce sound

Periscope        :     It is used to view objects above sea level (used in sub-marines)

Otoscope        :     Used for visual examination of the eardrum.

Oscilloscope        :     An electric instrument used for the graphical visualization of sound intensities

Oscillator        :     Converts DC in to AC

Optometer        :     Used for testing the refractive power of the eye.

Ondometer        :     Measures the frequency of electromagnetic waves(radio waves)

Ohmmeter        :     To reasure electrical resistance in Ohms

Odometer        :     An instrument by which the distance covered by wheeled vehicles is measured.

Nephetometer        :     Measures the scattering of light by particles suspended in a liquid

Mieroscope        :     is an instrument for magnified view of very small objects.

Microscope        :     It is used to obtain magnified view of small objects.

Microphone        :     It converts the sound waves into electrical vibrations and to magnify the sound.

Micrometer        :     Coverts sound waves into electrical vibration

Megaphone        :     is an instrument for carrying sound to long distances.

Mariner's Compass        :     is an apparatus for determining direction, graduated to indicate 33 directions. The ''N'' poInt on the dial indicates north pole and the "S" point, south pole.

Manometer        :     It measures the pressure of gases.

Magnetometer        :     is an instrument used to compare the magnetic moments and fields.

Machmeter        :     Determines the speed of an aircraft relative to the speed of sound

List of Scientific Instruments & Usage

Lactometer        :     It determines the purity of milk.

Kymopph        :     is an instrument for recording variations in pressure, for example, fur sound-waves.

Kymograph        :     It graphically records physiological movements (Blood pressure and heart beat).

Kaleidoscope        :     An instrument for presenting the pattern of colours with pieces of glass

Inverter        :     Used to convert DC into AC

Incubator        :     is a box designed to maintain a constant internal temperature used for rearing chickens and prematurely-born infants.

Inclinometer        :     is an instrument for measuring the angle of inclination that an aircraft makes with the horizontal.

Hypsometer        :     Measure the boiling point of liquids,

Hygroscope        :     Shows the changes in atmospheric humidity

Hygrometer        :     It measures humidity in air.

Hydroscope        :     is an optical instrument used for seeing objects below the surface of water.

Hydrophone        :     It measures sound under water.

Hydrometer        :     It measures the specific gravity of liquids.

Gyroscope        :     Used to measure dynamics of rotating bodies

Gramaphone        :     An instrument for the recording and reproduction of sound

Gauss meter        :     .Used to measure magnetization and the direction of magnetic field

Galvanometer        :     It measures the electric current of low magnitude.

Fluxmeter        :     Measures magnetic flux

Fathometer        :     It measures the depth of the ocean.

Eudiometer        :     A glass tube for measuring volume changes in chemical reactions between gases.

Endoscope        :     It examines internal parts of the body.

Electroscope        :     It detects presence of an electric charge.

Electrophorus        :     is an instrument for gen static electricity by induction.

Electron microscope        :     Used to obtain a magnifying view of very small objects (20,000 times).

Electrometer        :     Measures very small but potential difference in electric currents

Electroencephalograph (EEG)        :     is an instrument used for recording change in electric potential in various areas of the brain by means of electrodes on the scalp or in the brain itself

Electrocardiograph (ECG)        :     is an instrument used for detection of electric impulses of the heart. It gives a graphic picture of heart beats.

Electro dynamometer        :     Measures current, voltage or power in both DC and AC circuits

Electricity meter        :     Measures electrical energy

Ecosounder        :     To measure the depth of sea

Dynamometer        :     It measures force, torque and power

Dynamo        :     It converts mechanical energy into electrical energy

Dilatometer        :     Used for measuring the volume change caused by chemical or physical process

Dictaphone        :     is a machine which first records what is spoken into it and then reproduces it in type.

Cyclotron        :     A charged particle accelerator which can accelerate charged particles to high energies.

Cryometer        :     Measurement of low temperature.

Crescograph        :     Used for measuring growth in plants.

Commutator        :     An instrument to change or remove the direction of an electric current, in dynamo used to convert alternating current into direct current.

Colorimeter        :     An instrument for comparing intensities of colour.

Clinical Thermometer        :     is a thermometer for measuring the temperature of human body.

Cinematograph        :     Used for projecting pictures on the screen.

Chronometer        :     It determines the longitude of a place kept onboard ship.

Cathetometer        :     Determines heights and levels

Cardiogram(ECG)        :     Traces movements of the heart ,recorded on a Cardiograph

Carburettor        :     It is used in an internal combustion engine for charging air with petrol vapour.

Calorimeter        :     It measures quantity of heat.

Callipers        :     Measures diameters of thin cylinder/wire.

Bolometer        :     It measures heat radiation

Binoculars        :     An optical instrument used for magnified view of distant objects.

Barometer        :     It measures atmospheric pressure.

Barograph        :     It is used for continuous recording of atmospheric pressure.

Audiphones        :     It is used for improving imperfect sense of hearing.

Audiometer        :     It measures intensity of sound.

Anemometer        :     It measures force and velocity of wind.

Amplifier        :     Helps to increase the strength of electric signals

Ammeter        :     It measures strength of electric current (in amperes).

Altimeter        :     It measures altitudes and is used in aircrafts.

Accumulator        :     It is used to store electrical energy



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