Barograf

A Barograph is a measuring device which records the timing of the air pressure on a paper covered with drum. The resulting curve is called "barogram". The evaluation of the barogram can give to the expert evidence of future weather development.

In particular, are often found on ships barograph. Barographs play in aviation, in particular glider, a role. Then, however, often spoken of a level recorder. Since the air pressure decreases with altitude is known, the altitude profile of the flight can be analyzed after landing. There is also Barographs that register the air pressure history on a disc, or electronic barographs where the barogram appear on a (LC) display.

Aneroidbarographen serve the continuous recording of air pressure. The sensing element is a 7x Diaphragms sentence. It is made of a corrosion-resistant copper-beryllium alloy, which has proven itself due to their excellent elastic properties for years for pressure measurement well. Aging, hysteresis and elastic aftereffect are practically non.

All variants of the barograph have very large range of applications. Dependent on four adjustable pressure ranges, each 106.7 hPa are available. High flexibility in Messortwahl enables worldwide use of the barograph.

The main features of Aneroidbarographen are:

• network-independent and tamperproof
• broader writing drum (160 mm)
• Pressure measuring element with overload protection for transport to 2700 m altitude
•  9-fold membrane cans set
• corrosion-resistant, elastic material
• good measurement accuracy (± 0.2 hPa)
• long-term stability
• temperature compensated
• Reversible (1d - 7d) mechanical movement
• high reliability
• maintenance-free