Electronic level displaying inclination having digital and analog displays
First Claim
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1. An inclination measuring device comprising:
- a sensor determining an inclination of the device relative to a null inclination;
a housing in which the sensor is mounted, the housing defining a longitudinal axis; and
a visual display on the housing operatively connected to the sensor and displaying an inclination of the device, the visual display including;
a numeric display providing numeric inclination measurements over a range of 0°
to 360° and
having a first resolution; and
a graphic display providing graphic inclination measurements at least at cardinal angles of inclination and having a second resolution greater than the first resolution, wherein the numeric display and graphic display are simultaneously active.
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Abstract
An electronic level includes both a numeric scale and a graphic scale having a "fan-like" configuration of a number of elongated wedge-shaped segments. The inclination of the device is shown numerically using a digital display and, at cardinal angles, graphically by illuminating various segments on either side of a central segment line. The numeric scale provides a numeric indication of the angle of the level from 0° to 360° with respect to a null position, thus satisfying the need to measure absolute angles or slopes. The graphic display provides high resolution at cardinal angles while the numeric display provides lower resolution over 360°.
72 Citations
2 Claims
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1. An inclination measuring device comprising:
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a sensor determining an inclination of the device relative to a null inclination; a housing in which the sensor is mounted, the housing defining a longitudinal axis; and a visual display on the housing operatively connected to the sensor and displaying an inclination of the device, the visual display including; a numeric display providing numeric inclination measurements over a range of 0°
to 360° and
having a first resolution; anda graphic display providing graphic inclination measurements at least at cardinal angles of inclination and having a second resolution greater than the first resolution, wherein the numeric display and graphic display are simultaneously active. - View Dependent Claims (2)
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Specification
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Current AssigneeZircon Corporation
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Original AssigneeZircon Corporation
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InventorsHeger, Charles E., Dodd, Paul W.
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Primary Examiner(s)Trammell, James P.
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Assistant Examiner(s)Bui, Bryan
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Application NumberUS08/694,718Time in Patent Office1,138 DaysField of Search364/560, 364/559, 364/571, 33/365, 33/366, 33/391, 33/346, 33/377, 340/689, 345/23-25US Class Current702/154CPC Class CodesG01C 9/06 Electric or photoelectric i...
