What is a barographer?
The barograph is a barometer that is equipped with a record that rises and falls into barometric pressure on the rotating paper scroll. Barographers were once the main instrument of weather forecasts, sailors and others who carefully monitored pressure changes over time. The collection and study of scrolls provided a large insight into the queues, weather systems and general atmospheric changes, and allowed these patterns to be kept for offspring. In the modern era of computer records and digital barographers, they have largely replaced versions of self -confidence, although antique models are still valued for their craftsmanship.
Barometers have existed since the mid -16th century, but early models were quite basic. Most of them were a capsule filled with mercury that fluctuated atmospheric shifts. To record weather patterns, barometer owners had to carefully follow the equipment and engage in careful writing notes. Introduction of a barograph in 1843 Provided a more independent way to watch Barometricé changes.
Barograph technology is based on the functionality of anneroid barometers. The aneroid barometers were one of the first so -called "advanced" barometers, because they did not put on the rising liquid, but rather on the cells of anneroid capsules, which in many ways acts like alloy batteries. These barometers indicate pressure changes using a rotating dial that is synchronized with numbers on a flat face that resembles hours.
In the barograph, the central dial is oriented towards the role of paper. Most of the time the barometer is not large enough to reach paper. For this reason, most barographs have piles of barometers, usually four to seven, depending on the size. The upper barometer holds the recording arm.
The role of barographic paper stands immediately adjacent to the barometer in most Models. The role turns slowly, usually driven by the movement of quartz clock and barometersThey are firm. As the pressure changes and the arms move, it makes a mark on the paper.
The earliest barograph was equipped with a sharp metal arm, which recorded pressure by producing scratches on the role of foil. More modern examples use felt tips on graphic paper, which is optimized to indicate the day, time and relative pressure measurement. Most of the charts of the barograph record all week at a time, although the specifics differ from device to device.
Barographs are of particular importance at sea, where the weather patterns are often necessary for safe navigation. However, the transport of an ordinary barograph on board is often proven to be problematic because the constant movement of the ship shortens the mechanism of recording the device. For this reason, a specific marine barographer in which recording equipment and graphs are particularly anchored and weighted to withstand large surface movement.
Most barograph records are still on the market are antique models. New barographs are almost exclusively di diGital, allowing scientists and predictions to digitize, merge and quickly compare stored graphs. The processing, which is proven in many original models, was so accurate that many of them still work in perfect operating condition and often control very high prices.