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How does an aneroid barometer measure atmospheric pressure?
A barometer is an instrument used to measure atmospheric pressure. It can measure the pressure exerted by the atmosphere by using water, air, or mercury.An aneroid barometer is a barometer which measures pressure without using fluids!An aneroid barometer is somewhat different and uses a sealed chamber upon which the fluctuating atmospheric pressure acts. Through mechanical means a pointer is moved on a calibrated scale.
What is a barometer that uses a thin metal can?
Aneroid
Antique aneroid barometer has a scale of 28 to 31 what units are these?
A meterological type of barometer uses a column of mercury that is supported by atmosperic pressure. The height of this column varies with the atmospheric pressure and was at one time measured off in inches in the range of about 28 to 31 "inches of mercury". The scale now used is Millibars both in aneroid and mercury barometers.
What are good uses for a blood pressure chart?
blood pressure is use to determ wether a person (a patient )is having hypertension or not.
How does a barograph work?
A barograph is a device used to monitor pressure. It is a recording aneroid barometer and uses a pen instead of a pointer to record the data.
What is a android barometer?
An aneroid barometer, invented by the French 19th century engineer and inventor Lucien Vidie, uses a small, flexible metal box called an aneroid cell. This aneroid capsule (cell) is made from an alloy of beryllium and copper. The evacuated capsule (or usually more capsules) is prevented from collapsing by a strong spring. Small changes in external air pressure cause the cell to expand or contract. This expansion and contraction drives mechanical levers such that the tiny movements of the capsule are amplified and displayed on the face of the aneroid barometer.
What are Mercury Barometers and Aneroid Barometers?
A barometer is used to measure air pressure. A Mercury Barometer uses a column of liquid mercury supported by air pressure. The length of this liquid column gives a measure of the air pressure. Air pressure is commonly expressed in terms of "millimetres of mercury" (mmHg). Mercury is considered as a hazardous material and Mercury Barometers cannot be legally manufactured in Europe as of 2007. An Aneroid Barometer traditionally uses an evacuated corrugated metal canister that expands or contracts in response to changes in air pressure and this mechanical movement is amplified to indicate the air pressure in any required units on a calibrated display. The commonest pressure units displayed are in "millibars" (mbar). The latest Aneroid Barometers use a tiny evacuated capsule made of semiconducting materials that responds electrically to changes in air pressure, enabling very precise and repeatable measurement. The electrical signals from this device are processed electronically to provide a visual display of air pressure or to be recorded on a data-logging device as required.
What type of barometer used in aircraft?
Aircraft use an Aneroid Barometer, which uses a bellows and spring to measure changes in the earth's atmosphere from air pressure, unlike mercury or water barometers which use a liquid to measure these changes.
What are lab apparatus and their uses?
check out this link http://www.laboratoryequipmentworld.com/chemistry-lab-equipment.html it talks about a few types of apparatus and their uses.
What are the different glass apparatus and their uses?
wew
What are some medical uses of aspirin?
It is an analgesic (painkiller) It helps to reduce blood clotting and therefore reduces blood pressure.
What is one mechanism the kidney uses to raise systemic blood pressure?
One way the kidney increases systemic blood pressure is to increase secretion of renin by the juxtaglomerular complex.
