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