Instrument |
Use |
Electro microscope |
To obtain a magnifying view of very small objects Capable of magnifying up to 20,000 times |
Endoscope |
To examine internal parts of the body |
Fathometer |
Measures depth of the ocean |
Fiuxmeter |
Measures magnetic flux |
Galvanometer |
Measures electric current |
Hydrometer |
Measures the relative density of liquids |
Hygrometer |
Measures level of humidity |
Hydrophone |
Measures sound under water |
Hygroscope |
Shows the changes in atmospheric humidity |
Hypsometer |
To determine boiling point of liquids |
Lactometer |
Measures the relative density of milk to determine purity |
Machmeter |
Determines the speed of an aircraft in terms of the speed of sound |
Magnetometer |
Compares magnetic moments of magnets and fields |
Manometer |
Measures the pressure of gases |
Micrometer |
Measures distances/angles |
Aerophone |
Converts sound waves into electrical vibrations |
Microscope |
To obtain a magnified view of small objects |
Nephetometer |
Measures the scattering of light by particles suspended in a liquid |
Ohmmeter |
To measure electrical resistance in ohms |
Ondometer |
Measures the frequency of electromagnetic waves, especially in the radio-frequency band |
Periscope |
To view objects above sea level (used in submarines) |
Photometer |
Compares the luminous intensity of the source of light |
Polygraph |
Instrument that simultaneously records changes in physiological processes such as heartbeat, blood-pressure and respiration; used as a lie detector |
Pyknometer |
Determines the density and coefficient of expansion of liquids |
Pyrheliometer |
Measures components of solar radiation |
Pyrometer |
Measures very high temperature |
Quadrant |
Measures altitudes and angles in navigation and astronomy |
Radar |
To detect the direction and range of an approaching aeroplane by means of radiowaves, (Radio, Angle, Detection and Range) |
Radio micrometer |
Measures heat radiation |
Refractometer |
Measures refractive indices |
Salinometer |
Determines salinity of solutions |