Summary: A manhole cover is one of the hardest common targets for a tilt sensor, and the reason is not accuracy. The event that matters most, a cov...
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Summary: On a dam or a bridge pier, most of the movement a tiltmeter records is supposed to be there. Concrete dam deformation is elastic and drive...
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1. Why a Historic Structure Is a Harder Monitoring Target Than a New One A new structure comes with a design model. Someone calculated how it would...
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Summary: Failures on an RS485 monitoring bus are rarely sensor failures. The daisy chain rule, the two end terminations, the single point shield bo...
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Summary: The conversion itself is one multiplication: horizontal displacement equals span multiplied by the tangent of the angle, and one degree eq...
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Summary: A lighting column is a cantilever, and its controlling failure mode is fatigue cracking at the base detail or rotation of a foundation tha...
Read More » Summary: Warehouse racking fails in the gap between inspections, not during them. EN 15635 requires visual checks by trained staff and a formal exp...
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Summary: A tilt sensor that meets its accuracy specification can still show a non-zero reading when it sits on a level surface, because accuracy an...
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Summary: Placement, not sensor count, decides whether a tilt monitoring scheme can answer the question it was installed for. A single sensor measur...
Read More » Summary: Tilt is usually a slow variable, so the instinct is to sample slowly and average heavily. That instinct is half right. Three different rat...
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