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| Barographs |
A barograph is a recording aneroid barometer where the changes in atmospheric pressure are recorded on a paper chart. The recording chart is mounted on a drum which is turned by clockwork.
The Norfolk and The Blakeney barographs both have mechanical eight-day clocks with a seven-day chart which covers one full rotation of the drum. The ink trace, or barogram, on the recording paper is a visual record of changes in pressure and the trend shown can be an invaluable help in forecasting changes in the weather.
Charts are available in inches or millibars, starting on a Sunday or a Monday. Each instrument is hand assembled and then tested and calibrated to a standard chart in our own pressure/vacuum chamber.
Replacement charts, fibre pens and ink are available to order.
PLEASE CLICK ON Barographs BELOW TO VIEW OUR COMPLETE RANGE AND ON Barograph Charts FOR FURTHER DETAILS.
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- Barographs
A barograph is a recording aneroid barometer where the changes in atmospheric pressure are recorded on a paper chart. The recording chart is mounted on a drum which is turned by clockwork.
The Norfolk and The Blakeney barographs both have mechani.....
- Barograph Charts
Barograph charts are held on to the clock either by a clamp bar or a gummed, perforated removal strip.
Charts are calibrated in inches of mercury (28" / 31") or in millibars (950mb/1050mb) and the start of the week can be either Sunday or Monday. .....
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Please contact us if you have any questions
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