System and method in a radar level gauging system
First Claim
1. A method for measuring a level of a surface of a product stored in a container comprising the steps of:
- transmitting a microwave signal towards the product surface using a radar level gauge arranged above the product surface;
receiving in said radar level gauge a microwave signal reflected from the product surface;
determining in a calculation unit a measured value of the product level based upon the received signal;
comparing the measured value of the product level with a predetermined product level value;
determining the product level using a second level gauge arranged close to the bottom of the container when the measured value is below or equal the predetermined product level value.
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Accused Products
Abstract
The present invention relates to the field of radar level gauging systems, in which a level of a surface of a product stored in a container is measured. The gauging system comprises: a radar level gauge arranged above the surface of the product which is arranged to transmit a microwave signal towards the product surface and receive a reflected microwave signal from the product surface; a calculation unit arranged to determine a measured value of the product level based upon the received signal; means for comparing the measured value of the product level with a predetermined value; and a second level gauge arranged closed to the bottom of the container and arranged to determine the product level when the measured value is below the predetermined value.
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Citations
9 Claims
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1. A method for measuring a level of a surface of a product stored in a container comprising the steps of:
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transmitting a microwave signal towards the product surface using a radar level gauge arranged above the product surface;
receiving in said radar level gauge a microwave signal reflected from the product surface;
determining in a calculation unit a measured value of the product level based upon the received signal;
comparing the measured value of the product level with a predetermined product level value;
determining the product level using a second level gauge arranged close to the bottom of the container when the measured value is below or equal the predetermined product level value. - View Dependent Claims (2, 3, 4, 5)
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6. A radar level gauging system for measuring a level of a surface of a product stored in a container comprising:
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a radar level gauge arranged above the surface of the product and arranged to transmit a microwave signal towards the product surface and receive a reflected microwave signal from the product surface;
a calculation unit arranged to determine a measured value of the product level based upon the received signal;
means for comparing the measured value of the product level with a predetermined product level value;
a second level gauge arranged closed to the bottom of the container and arranged to determine the product level when the measured value is below or equal the predetermined product level value. - View Dependent Claims (7, 8, 9)
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Specification