What is a sea barometer?

marinous barometer is a tool used to measure atmospheric pressure and predict weather systems at sea. Traditionally, sea barometers were made of mercury. The mercury rises or decreases in relation to pressure and air temperature and can accurately predict changes in weather and incoming storms at a barometric chamber content. While the Mercury barometers remain popular, copper -based barometers and digital barometers are more and more replaced. These types of barometers have the same weather forecast goals as traditional mercury barometers, but try to meet these goals using newer technology.

The barometer works by measuring the ambient air pressure. The first barometers were simple inverted mercury glass tubes, an element known to be sensitive to pressure and temperature changes. Mercury rises and falls into a tube with air pressure changes. When the air pressure is high, pushing down the mercury outside the tube and the mercury inside the tube rises; When the pressure is low, Mercury falls. Scientists have learned to distinguishAt what rises and falls at certain thresholds in terms of weather change. Weather changes closely correlate with air pressure changes.

The accurate prediction of the weather was particularly important for sailors and sailors of merchant ships in antiquity. Knowing that Squall is coming, the crew can allow the crew to change the course, or to face the hatches before it is surprised by jerky sea, strong winds and high waves. However, the bearing of the glass pipes on board boats is not necessarily the safest thing to do. The tubes are fragile, the sea is often rough and free mercury can have deep negative effects on health. Marine Barometer was commercially developed to provide sailors with a comfortable and portable means of predicting atmospheres at sea.

The

marinous barometer usually works along with other marine weather indicators, including marine thermometers and marine anemometers. Sea thermometers measure VO temperatureDy, which can alert the captains of many things, from the coming storms to the upcoming shallow water. The sea anemometer measures the speed and direction of the wind.

Traditional sea barometers were small glass tubes, reminiscent of thermometers, closed in larger protective boxes. These barometers were calibrated to cope with certain values ​​that rise to the side of the box. Reading usually indicated both pressure units and their translations of a simple language: "fair", "rain", "storms" and the like. They were designed to be mounted, usually on the wall of the navigation chamber of the ship.

Both technology has advanced and barometric technology. Although mercury barometers are often considered the most accurate, other models followed. One Coalternate Barometer MMON Mondur Marine is a copper alloy -based barometer known as an aneroid barometer.

The

aneroid barometer consists of a small metal cell with a spring. The cell is surrounded by a metal alloy of copper and berylia. As the pressure of the airChu changes outside the cell, the spring in the cell expands and contrasts, and these movements cause the dial on the face of the barometer. Anerooid barometers often have faces that resemble a lesson with one dial that points to different measurements and weather conditions. Anerooid barometers have become popular mercury alternatives for the use of sea uses and also for home use.

The

20th century th has been further developed by a barometer with the introduction of a digital or electronic marine barometer. Digital barometers work by translating electronic air pressure readings and changes in the weather forecast. Most digital barometers have humidity, air pressure, temperature and wpři to form read -speed Ind. Some digital barometers compete with the accuracy of mercury barometers. Most of the modern ship captains relies on a number of digital technologies to predict the weather changes at sea, and the digital seabel barometer is usually one of the favorite toolsis. Marine barometers Mercury are still used, but they are much less common than they once were, and since 2010 they have rarely been newly made.