"An instrument for indicating the velocity or pressure of the wind; a wind-gage."-Whitney, 1902

Anemometer

"An instrument for indicating the velocity or pressure of the wind; a wind-gage."-Whitney, 1902

"An instrument for indicating the velocity or pressure of the wind; a wind-gage."-Whitney, 1902

Anemometer

"An instrument for indicating the velocity or pressure of the wind; a wind-gage."-Whitney, 1902

"The principal part of the aneroid barometer is a cylindrical air-tight box of metal closed by a corrugated top of thin elastic metal. The air is exhausted from the box, which is then sealed. Evidently, the pressure of the air on the outside of the cover will cause the cover to curve inwards, as the space inside of the cover is void of pressure, until the resistance due to the elasticity of the cover, aided by the resistance of a spring beneath it, is equal to the force exerted by the air." — Hallock, 1905

Aneroid Barometer

"The principal part of the aneroid barometer is a cylindrical air-tight box of metal closed by a corrugated…

"The barometer is simply a pressure gauge that registers the pressure of the air. In this case the cup and tube at the bottom are protected by a brass or iron casing. At the top of the tube is a graduated scale. Attached to the casing is an accurate thermometer for determining the temperature of the outside air at the time the barometric observation is taken." — Hallock, 1905

Barometer

"The barometer is simply a pressure gauge that registers the pressure of the air. In this case the cup…

A micrometer depth gage used to measure irregular holes in narrow boring. The gage measures the holes by inserting the rod into the gage while the pointer measures the bore.

Depth Micrometer Gage

A micrometer depth gage used to measure irregular holes in narrow boring. The gage measures the holes…

"A gauge." — Encyclopedia Britannica, 1893

Gauge

"A gauge." — Encyclopedia Britannica, 1893

An illustration of an idiostatic gauge which determines the charge in the condenser.

Idiostatic Gauge

An illustration of an idiostatic gauge which determines the charge in the condenser.

An instrument for measuring or testing.

Instrument Panel Gauge

An instrument for measuring or testing.

A McLeod gauge isolates a sample of gas and compresses it in a modified mercury manometer until the pressure is a few mmHg. The gas must be well-behaved during its compression (it must not condense, for example). The technique is slow and unsuited to continual monitoring, but is capable of good accuracy.

McLeod Gauge

A McLeod gauge isolates a sample of gas and compresses it in a modified mercury manometer until the…

A McLeod gauge isolates a sample of gas and compresses it in a modified mercury manometer until the pressure is a few mmHg. The gas must be well-behaved during its compression (it must not condense, for example). The technique is slow and unsuited to continual monitoring, but is capable of good accuracy.

McLeod Gauge

A McLeod gauge isolates a sample of gas and compresses it in a modified mercury manometer until the…

To monitor breathing gas pressure in the diving cylinder, a diving regulator usually has a high pressure hose leading to a contents gauge (also called pressure gauge). The port for this hose leaves the first-stage upstream of all pressure-reducing valves. The contents gauge is a pressure gauge measuring the gas pressure in the diving cylinder so the diver knows how much gas remains in the cylinder. It is also known as submersible pressure gauge or SPG.

Pressure Variation Indicator

To monitor breathing gas pressure in the diving cylinder, a diving regulator usually has a high pressure…

A container used to measure a peck.

Peck

A container used to measure a peck.

"An apparatus used to determine pressures beyond those that the McLcod gauge can discern." —The Encyclopedia Britannica 1910

Radiometer

"An apparatus used to determine pressures beyond those that the McLcod gauge can discern." —The…

An instrument or contrivance for measuring the amount of rain which falls on a given surface. They are made of various forms. One simple form consists of a copper funnel five to seven inches in diameter, inserted in the neck of a bottle placed on a stand and protected from the sun's rays, to prevent evaporation.

Rain Gauge

An instrument or contrivance for measuring the amount of rain which falls on a given surface. They are…

"This is an instrument designed to measure the quantity of rain which falls at any given time and place." -Comstock 1850

Rain Gauge

"This is an instrument designed to measure the quantity of rain which falls at any given time and place."…