ELECTROLEVEL Schematic System
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In the ELECTROLEVEL the only moving parts are the conducting liquid
and gas bubble. This has many advantages.
First, the liquid will flow after an infinitesimal change in tilt angle -
there is no friction in a mechanical pivot to overcome and hence no
hysteresis effect - the resolution of the sensor is infinite in a practical
and repeatable way.
Secondly, there are no mechanical wearing out mechanisms in the
ELECTROLEVEL either under normal measurement conditions or under
shock and vibration conditions.
The worst that can happen to the 'mechanism' of the ELECTROLEVEL
under the severest vibration is that the bubble breaks up and forms a foam
with the liquid. However, once the vibration ceases, the bubble forms
again and is as good as new.
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Some recent applications include:-
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dual axis level control systems for missile launch platforms,
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attitude monitors for drilling and piling rigs,
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subsea anchor chain catenary monitor,
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radio telescope datum reference,
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deceleration monitor for brake research vehicle,
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road gradient sensor for highway inspection vehicle,
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automatic trim angle control sensor for oil tankers.
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