Method and apparatus for processing a measurement signal
AssigneeRohde & Schwarz GmbH & Co. KG
InventorsAndrew Schaefer, Markus Freidhof
Life of this patent
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Abstract
A method for and apparatus processing a measurement signal of a dynamic physical quantity is provided which includes acquiring a measurement signal representing the dynamic physical quantity over time; comparing the acquired measurement signal with a predefined signal characteristic of the respective physical quantity or with a signal characteristic of another physical quantity being dependent from the respective physical quantity to provide a comparison result; and adjusting a waveform representing the acquired measurement signal based upon the comparison result. A digital oscilloscope is also provided.
Claims12
A method for processing a measurement signal of a dynamic physical quantity comprising the steps of:
- acquiring a measurement signal representing the dynamic physical quantity over time, wherein the acquired measurement signal is stored in a first memory of a measurement apparatus;
- comparing by a processor of the measurement apparatus, the acquired measurement signal with a predefined signal characteristic of the respective physical quantity or with a signal characteristic of another physical quantity being dependent from the respective physical quantity to provide a comparison result, wherein the signal characteristic of the physical quantity is read from a second memory of the measurement apparatus;
- and
- adjusting a waveform representing the acquired measurement signal based upon the comparison result, wherein the adjusted waveform of the measurement signal is displayed as a signal trace along a time axis on a screen of a display unit of the measurement apparatus and wherein the waveform representing the measurement signal is adjusted by shifting the associated signal trace on the screen of the display unit perpendicular to the time axis.
A measurement apparatus comprising a processor adapted to compare an acquired measurement signal representing a dynamic physical quantity over time stored in a first memory of said measurement apparatus with a predefined signal characteristic of the respective physical quantity or with a predefined signal characteristic of another physical quantity being dependent from the respective physical quantity stored in a second memory of said measurement apparatus to calculate a comparison result and further adapted to adjust a waveform representing the acquired measurement signal based upon the calculated comparison result, wherein the adjusted waveform of the measurement signal is displayed as a signal trace along a time axis on a screen of a display unit of the measurement apparatus and wherein the waveform representing the measurement signal is adjusted by shifting the associated signal trace on the screen of the display unit perpendicular to the time axis.
A digital oscilloscope comprising
- a signal input adapted to receive an analog measurement signal provided by a probe attached to a measurement object;
- an analog to digital converter adapted to convert the received analog signal into a digital measurement signal;
- a first memory adapted to acquire and store the converted digital measurement signal;
- a second memory which stores at least one predefined signal characteristic of a physical quantity or at least one physical characteristic of another physical quantity being dependent from the respective physical quantity;
- a processor adapted to compare the acquired digital measurement signal stored in the first memory with the predefined signal characteristic stored in the second memory to calculate a comparison result and to adjust a waveform representing the acquired digital measurement signal stored in the first memory based upon the calculated comparison result,
- wherein the adjusted waveform of the measurement signal is displayed as a signal trace along a time axis on a screen of a display unit of said digital oscilloscope, wherein the waveform representing the measurement signal is adjusted by shifting the associated signal trace on the screen of the display unit perpendicular to the time axis.
Dependencies are inferred from the claim text.