| 1. |
Aerometer :
| Instrument for measuring weight and density of air and gases. |
| 2. |
Altimeter :
| Instrument used in aircraft to measure altitude. |
| 3. |
Ammeter :
| Instrument used to measure electrical current flowing in a circuit. |
| 4. |
Anemometer :
| Instrument to measure the force and velocity of wind. |
| 5. |
Audiometer :
| Instrument to measure intensity of sound. |
| 6. |
Barometer :
| Instrument used to measure the atmospheric pressure. |
| 7. |
Calorimeter :
| Instrument used for measuring quantities of heat. |
| 8. |
Cardiogram :
| A medical instrument for tracing heart movements. |
| 9. |
Crescograph :
| Instrument for use in recording growth of plants. |
| 10. |
Dynamo :
| Instrument for transforming mechanical energy into electrical energy. |
| 11. |
Fathometer :
| Instrument used for measuring depth of the ocean. |
| 12. |
Geiger Counter :
| Instrument for recording the amount of radiation emitted by a source of radio-activity. |
| 13. |
Hydrometer :
| Instrument used for measuring the specific gravity of liquids |
| 14. |
Hydrophone :
| Instrument used for recording sound under water |
| 15. |
Hygrometer :
| Instrument for measuring the amount of water vapours (humidity) in the atmosphere. |
| 16. |
Kymograph :
| Instrument used to record graphically various physiological movements i.e.,blood pressure,heart beating, study of lungs etc. in living beings. |
| 17. |
Lactometer :
| Aparatus used for measuring the purity of milk. |
| 18. |
Manometer :
| Apparatus used for determining the pressure of a gas. |
| 19. |
Odometer :
| Instrument by which the distance covered by wheeled vehicles is recorded. |
| 20. |
Oscillograph :
| Instrument for recording electrical or mechanical vibrations. |
| 21. |
Photometer :
| Apparatus used to compare the illuminating power of two sources of light. |
| 22. |
Pyrometer :
| Instrument for recording high temperatures froma great distance. |
| 23. |
Radiometer :
| Instrument for measuring the emission of radiant energy. |
| 24. |
Rain gauge :
| Apparatus for recording of rainfall at a particular piece. |
| 25. |
Refractometer :
| Instrument to measure refractive indices. |
| 26. |
Saccharimeter :
| Instrument for determining the amount of sugar in a solution. |
| 27. |
Sextant :
| An optical instrument used for finding out the altitude of celestial bodies and their angular distances. |
| 28. |
Sphygmomanometer :
| Instrument used for measuring arterial bolld- pressure. |
| 29. |
Spherometer :
| Instrument for measuring curvature of surfaces. |
| 30. |
Seismograph :
| Instrument used for recording earthquake shocks. |
| 31. |
Tachometer :
| Instrument for determining speeds of aeroplanes and motor boats. |
| 32. |
Thermostat :
| Instrument used to regulate the temperature to a particular degree. |
| 33. |
Transformer :
| An electrical apparatus used to convert high voltage to low and vice versa
|
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