Scientific Instruments and Their Functions

Scientific Instruments and Their Functions

Instrument	Function
Altimeter	Measures the altitude of an aircraft or any object/location.
Ammeter	Measures electric current in amperes.
Anemometer	Measures the strength and speed of wind.
Audiometer	Measures the intensity of sound.
Audiphone	Assists people with low hearing ability to hear properly by placing it in the ear.
Barograph/Barometer	Measures changes in atmospheric pressure. Barometers in aircraft are called altimeters.
Accelerometer	Measures the acceleration of an aircraft.
Calipers	Measures the internal and external diameter of round objects and their thickness.
Crescograph	Measures the growth rate of plants.
Astrometer	Compares the light intensity of stars.
Cardiogram	Measures heartbeats of patients with heart disease.
Chronometer	Provides time information on ships.
Cinematograph	Enlarges small images for viewing on a screen, making film reel images appear continuous and moving.
Compass Needle	Indicates the north direction.
Rectifier	Converts alternating current (A.C.) to direct current (D.C.), used in dynamos and generators.
Accumulator	Stores electrical energy.
Eudiometer	Measures volume changes in gases due to chemical reactions.
Dynamite	A highly explosive substance made from nitroglycerin, invented by Alfred Nobel in 1877.
Galvanometer	Measures small electrical currents.
Predictor	Provides advance information about the arrival of an aircraft.
Gramophone	Reproduces recorded sound waves for listening.
Gravimeter	Detects the presence of oil on water surfaces.
Hydrophone	Records sound in water.
Actinometer	Determines the thermal intensity of solar rays.
Aerometer	Measures the weight and density of air and gases.
Kymograph	Records blood pressure, heart rate, lung movements, and other motions on a graph.
Lactometer	Measures the purity of milk.
Manometer	Measures gas pressure.
Microscope	Uses lenses to magnify tiny, invisible objects for viewing.
Breathalyzer	Tests whether a driver has consumed alcohol.
Communication Satellite	Transmits television and telephone signals between continents and countries.
Microtome	Cuts objects into small sizes.
Magnetometer	Measures the direction of magnetic fields generated by high-voltage currents.
Blood Pressure (B.P.) Instrument	Measures blood pressure.
Parachute	An umbrella-shaped device used for safe descent from an aircraft during emergencies.
Oscillograph	Records electrical and mechanical vibrations.
Periscope	Provides information about surface activities while a submarine is underwater.
Photograph	Captures and processes images using chemicals to produce clear pictures.
Potentiometer	Measures the electromotive force (EMF) between two points in an electrical circuit.
Pipette	Measures precise volumes of liquids.
Saccharimeter	Measures the amount of sugar in a solution.
Pyrometer	Measures the high temperature of distant objects.
Radiator	Cools automobiles.
Micrometer	Measures small distances or angles.
Megaphone	Transmits sound over long distances.
Sphygmomanometer	Measures arterial blood circulation and pulse rate.
Stethoscope	Invented by Laennec, used in medical science to listen to heart and lung sounds and diagnose symptoms.
Spectroscope	Analyzes and provides information about the spectrum (rainbow).
Quartz Clock	Shows accurate time for astronomical studies and observations.
Teleprinter	Prints news transmitted via telephone.
Television	Displays and plays programs transmitted from a broadcast station.
Thermocouple	Generates electricity from heat and measures temperature.
Thermostat	Controls temperature at a specific point in an object.
Theodolite	Used for land surveying.
Viscometer	Studies the viscosity of liquids.
Voltmeter	Measures the potential difference between two points in an electrical circuit.
Van de Graaff Generator	An advanced device producing millions of volts of electrical potential.
Wimshurst Machine	Generates static electric potential.
Videophone	Displays visual images along with audio on a telephone receiver.
Sextant	Measures the distance of faraway objects or bodies.
Speedometer	Measures the speed of vehicles or automobiles.
Spherometer	Measures the curvature of a surface.
Moderator	Slows down neutrons in a nuclear reactor.
Kaleidoscope	Displays beautiful geometric patterns.
Kymograph	Records blood circulation, heart, and lung movements on a graph.
Gyroscope	Measures the motion of rotating objects.
Epidiascope	Projects opaque images onto a screen.
Electric Meter	Converts electrical energy into mechanical energy.
Electrocardiograph (ECG)	Records electrical waves related to heartbeats.
Cyclotron	Accelerates particles to produce nuclear energy.
Electroscope	Detects the presence of electric charge.
Electron Microscope	Magnifies tiny objects thousands of times.
Fathometer	Measures the depth of the sea.
Radiomicrometer	Measures heat radiation.
Resistance Thermometer	Determines the electrical resistance of conductors to measure temperature.
Salinometer	Measures the density of saline solutions, similar to a hydrometer.
Seismograph	Records the magnitude, speed, and impact of earthquakes.
Seismometer	Records the general motion of earthquakes.
Hygrometer	Measures the humidity of the air.
Hygroscope	Shows changes in atmospheric humidity.
Early Bird	The first intercontinental communication satellite, launched by the USA in 1964.
Telemeter	Records distant events.
Air Brake	A brake system that operates using air pressure, used in trains and buses.