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7055254 |
Tiltsensor
An adjustment-free tiltsensor for application in the fields of geodesy, geophysics and geotechnics, with a tilt angle measuring range greater than ±5° to ±10° and an essentially enhanced...
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6516527 |
Inclinometer
A digital inclinometer detects an inclination angle by sensing varying conductive current of various electrodes. When the inclinometer is rotated through an inclination angle, various segments of...
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6301795 |
Tilt sensor using magnet and magnetic sensor
A tilt sensor capable of sensing tilt in two axes includes an outer shell, a magnet at a fixed position inside the shell, and a reference element movable within the shell in response to gravity....
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6123866 |
Electrolytic solution for clinometric sensor
A pair of upper electrodes are formed on an upper inner surface of a closed container constituting a clinometric sensor and a lower electrode is formed on the bottom of the closed container. An...
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5802728 |
Liquid level and angle detector
A feedback circuit for generating an output signal from a sensor that makes changing electrical and temperature characteristics of the sensor and any sensing medium irrelevant. The sensor is placed...
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5456013 |
Inductive tilt sensor and method for measuring tooth mobility
A sensor for measuring angular displacement of a small body comprising a sealed housing containing a differential transformer having at least two primary coils, one primary and two secondary coils,...
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5452520 |
Ferrofluid inclinometer
An inclinometer device containing a magnet surrounded at each pole by a thin, discrete band of ferrofluid; these bands are retained against the magnet by its own magnetic field, and suffice to...
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5452519 |
Attitude sensor
An attitude sensor comprises a spherical ball suspended in a fluid contained in a housing. The ball is maintained neutrally buoyant with respect to the fluid and out of direct contact with the...
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5385110 |
Boat trim control and monitor system
A boat trim control system that includes a boat having a bull and means such as trim tabs mounted to the hull for trimming attitude of the boat as the bull is propelled through the water. The...
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5205042 |
Process for adjusting the verticality of an article disposed in a closed envelope and assembly for carrying this process
The article of which the verticality is critical, for example a distillation column disposed in a closed envelope, is associated with an indicator of verticality comprising a suspended mass and a...
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5042158 |
Inclination sensor
An inclination sensor, in particular for measuring an inclination of service lines and/or ram boring machines, comprising a pendulum arranged in a measuring cell and at least one displacement...
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4932132 |
Electronic level apparatus and method
This invention relates to an electronic level apparatus wherein a hollow torus is rotatably mounted in the level. A body of ferromagnetic fluid creates a horizontal reference and is sensed to...
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4157619 |
Inclination and direction responsive apparatus
An inclination responsive device including a coil energized to produce a magnetic field extending along a normally vertical axis of the device, and a flux gate assembly adapted to respond to a...
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3984918 |
Inclinometer
Disclosed is an inclinometer particularly adapted for use as a top-hole indicator in drilling operations. The inclinometer employs a ferrofluid in a closed tube; the fluid serves as an...
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3596365 |
INCLINATION-MEASURING DEVICE
A device for measuring deviations from vertical comprising a spherical liquid-filled container with a pendulous coil supported by a thin thread conduct or from a fixed point on the interior of the...
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3184861 |
Position deviation sensing device utilizing skin effect
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2958137 |
Level indicating device
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