Calibration system, material delivery system, and methods for such delivery and calibration
First Claim
1. A material delivery system comprising:
- a delivery vessel adapted for coupling to an unit;
at least one load cell configured to provide a metric indicative of an amount of material in the delivery vessel; and
an automated load cell calibration device configured to impart a known force externally onto the delivery vessel and transmitted to the at least one load cell.
5 Assignments
0 Petitions
Accused Products
Abstract
Material delivery systems, methods of delivering material and methods of calibrating such systems and methods are disclosed. The material delivery system includes a delivery vessel, a load cell, and automated weight calibration device. The delivery vessel has at least an outlet adapted for coupling to an unit. The load cell is configured to provide a metric indicative of an amount of material in the delivery vessel. The automated weight calibration device is configured to impart a known force onto the at least one load cell. A method includes delivering material to a unit and determining how much material is delivered by a change in weight of a delivery vessel, wherein the delivery vessel comprises a load cell; applying a known calibration force to the load cell; and comparing a metric from the load cell of the known calibration with an expected metric.
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Citations
23 Claims
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1. A material delivery system comprising:
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a delivery vessel adapted for coupling to an unit; at least one load cell configured to provide a metric indicative of an amount of material in the delivery vessel; and an automated load cell calibration device configured to impart a known force externally onto the delivery vessel and transmitted to the at least one load cell. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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16. A method of providing material to an unit comprising:
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i) imparting a known force externally onto a delivery vessel and transmitting to at least a load cell coupled to the delivery vessel and measuring the known force imparted on the delivery vessel with a metric indicative of the known force, wherein the known force is imparted by providing the delivery vessel with a predetermined weight of material; ii) calibrating the at least one load cell by comparing the known weight of material with the measured force; and iii) delivering the material from the delivery vessel to the unit. - View Dependent Claims (17, 18, 19, 20)
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21. A method comprising:
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i) delivering material to an unit and determining how much material is delivered by a change in weight of a delivery vessel, wherein the delivery vessel comprises a load cell; ii) applying a known calibration force externally onto the delivery vessel and transmitting to the load cell; and iii) comparing a metric from the load cell of the known calibration force with an expected metric.
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22. A method of automatically checking the calibration of a delivery vessel comprising:
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i) placing a delivery vessel into a standby mode during which a material is not substantially added or removed from the delivery vessel, wherein the delivery vessel is coupled to at least a load cell; ii) applying a known weight externally onto the delivery vessel, either directly or indirectly, and transmitting to the at least a load cell and measuring the applied weight while the delivery vessel is in the standby mode; and iii) comparing the measured weight applied to the at least a load cell with the known weight to detect any deviation between the measured weight and known weight. - View Dependent Claims (23)
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Specification