Method for noise diagnosis, method for signal control, diagnosis device and radiomatic level measuring device
AssigneeVEGA Grieshaber KG
InventorsWinfried Rauer, Matthias Harter
Life of this patent
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Abstract
A method for signal diagnosis, in particular for noise detection, of a radiometric sensor, that includes detecting of a first pulse rate by way of a first discriminator and a first counting circuit, detecting of at least a second pulse rate by way of a second discriminator and a second counting circuit, wherein the amplitude sensitivity of the first discriminator is different from the amplitude sensitivity of the second discriminator, determining a ratio between the detected pulse rate of the second discriminator and the detected pulse rate of the first discriminator, and comparing the determined ratio with an expected value.
Claims18
A method for signal detection of a radiometric sensor, comprising:
- first detecting of a first pulse rate by way of a first discriminator and a first counting circuit;
- second detecting of at least a second pulse rate by way of a second discriminator and a second counting circuit, wherein a first amplitude sensitivity of the first discriminator is different from a second amplitude sensitivity of the second discriminator;
- determining a ratio between the second pulse rate of the second discriminator detected by the second detecting and the first pulse rate of the first discriminator detected by the first detecting;
- and
- comparing the determined ratio with an expected value,
- wherein the first amplitude sensitivity of the first discriminator is higher than the second amplitude sensitivity of the second discriminator.
A method for signal control of a radiometric sensor, comprising:
- detecting of a first pulse rate by way of a first discriminator, and a first counting circuit, wherein the first discriminator is a measurement discriminator;
- detecting of a second pulse rate by way of a second discriminator and a second counting circuit;
- detecting of a third pulse rate by way of a third discriminator and a third counting circuit,
- wherein the second discriminator has a lower amplitude sensitivity than the first discriminator and a higher amplitude sensitivity than the third discriminator;
- determining a ratio between the third pulse rate of the third discriminator and the second pulse rate of the second discriminator;
- comparing the determined ratio with an expected value;
- and
- adjusting amplification of received pulse rates if the determined ratio deviates from the expected value in the comparing,
- wherein a first amplitude sensitivity of the first discriminator is higher than a second amplitude sensitivity of the second discriminator.
A diagnostic device for a radiometric detector comprising:
- a first discriminator and a first counting circuit configured to first detect a first pulse rate;
- a second discriminator and a second counting circuit configured to second detect at least a second pulse rate, wherein a first amplitude sensitivity of the first discriminator is different from a second amplitude sensitivity of the second discriminator;
- and
- circuitry configured to:
- determine a ratio between the second pulse rate of the second discriminator detected by the second detection and the first pulse rate of the first discriminator detected by the first detection, and
- compare the determined ratio with an expected value,
- wherein the first amplitude sensitivity of the first discriminator is higher than the second amplitude sensitivity of the second discriminator.
Dependencies are inferred from the claim text.