Method of adjusting an apparatus comprising a flexible tube pre-tensioned with a liquid and connected to a pressure sensor
First Claim
1. A method of one of adjusting (taring) or re-calibrating an apparatus that includes a liquid-filled previously pressurized flexible tube that is closed at one end and is connected to a pressure sensor at an other end, the method comprising:
- activating predetermined controlling functions by establishing a differential of an external pressure exerted onto the tube by a person and a pressure prevailing in the previously pressurized tube; and
in establishing the differential, taking into account variations of the pressure prevailing in the previously pressurized tube, when no external pressure is being exerted on the tube by the person, due to at least one variable external ambient parameter,wherein the external pressure exerted on the previously pressurized tube is released frequently at intervals that are shorter than a time span over which the variations in the at least one ambient parameter are felt,wherein a base or reference value for the one of the adjustment (taring) or re-calibration of the pressure prevailing in the previously pressurized flexible tube without the external pressures being exerted is provided as an average value of a predetermined number of minimum values, andwherein the average value is continually adjusted at predetermined time intervals.
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Accused Products
Abstract
Method for one of adjusting (taring) or re-calibrating an apparatus that includes a liquid-filled previously pressurized flexible tube that is closed at one end and is connected to a pressure sensor at an other end. Method includes activating predetermined controlling functions by establishing a differential of an external pressure exerted onto the tube by a person and a pressure prevailing in the previously pressurized tube. In establishing the differential, the method includes taking into account variations of the pressure prevailing in the previously pressurized tube, when no external pressure is being exerted on the tube by the person, due to at least one variable external ambient parameter.
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Citations
12 Claims
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1. A method of one of adjusting (taring) or re-calibrating an apparatus that includes a liquid-filled previously pressurized flexible tube that is closed at one end and is connected to a pressure sensor at an other end, the method comprising:
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activating predetermined controlling functions by establishing a differential of an external pressure exerted onto the tube by a person and a pressure prevailing in the previously pressurized tube; and in establishing the differential, taking into account variations of the pressure prevailing in the previously pressurized tube, when no external pressure is being exerted on the tube by the person, due to at least one variable external ambient parameter, wherein the external pressure exerted on the previously pressurized tube is released frequently at intervals that are shorter than a time span over which the variations in the at least one ambient parameter are felt, wherein a base or reference value for the one of the adjustment (taring) or re-calibration of the pressure prevailing in the previously pressurized flexible tube without the external pressures being exerted is provided as an average value of a predetermined number of minimum values, and wherein the average value is continually adjusted at predetermined time intervals. - View Dependent Claims (2, 3, 4)
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5. A method for one of adjusting (taring) or re-calibrating an apparatus having a liquid-filled previously pressurized flexible tube that is closed at one end and is connected to a pressure sensor at an other end, the method comprising:
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monitoring a differential between an external pressure exerted on the tube by a person and a pressure prevailing in the previously pressurized tube to activate predetermined controlling functions; and varying the monitored differential due to variations on the pressure prevailing in the previously pressurized tube based upon at least one variable external ambient parameter, wherein the external pressure exerted on the previously pressurized tube is released frequently at intervals that are shorter than a time span over which the variations in the at least one ambient parameter are felt. - View Dependent Claims (6, 7, 8, 9, 10, 11, 12)
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Specification