A measuring system has an analog-to-digital converter, an acquisition memory, a processing unit, and a display memory. The processing unit is adapted to decode a digital signal according to a protocol creating a decoded signal and to evaluate the decoded signal at a cursor position. The digital data generated by decoding the decoded signal at the cursor position is stored in the display memory. Further, a method for analyzing an analog signal according to a protocol is shown.

An oscilloscope including an input port for receiving training data including waveforms and corresponding known classifications and a processor for training a plurality of classifiers on the training data. Training includes iteratively applying each classifier to each waveform of the training data to obtain corresponding predicted waveform classifications and comparing the predicted waveform classifications with the known classifications. Classifiers are corrected when predicted waveform classifications does not match the known classifications. Models for each classification are constructed with suggested measurements or actions. Subsequently, live waveform data is captured by the oscilloscope and the classifiers are applied to the live data. When a confidence value for a single classification exceeds a threshold, the waveform data is classified, and suggested measurements or actions are implemented in the oscilloscope based on the classification.

An oscilloscope including an input port for receiving training data including waveforms and corresponding known classifications and a processor for training a plurality of classifiers on the training data. Training includes iteratively applying each classifier to each waveform of the training data to obtain corresponding predicted waveform classifications and comparing the predicted waveform classifications with the known classifications. Classifiers are corrected when predicted waveform classifications does not match the known classifications. Models for each classification are constructed with suggested measurements or actions. Subsequently, live waveform data is captured by the oscilloscope and the classifiers are applied to the live data. When a confidence value for a single classification exceeds a threshold, the waveform data is classified, and suggested measurements or actions are implemented in the oscilloscope based on the classification.

A testing device configured to operate as a dedicated tool for testing motor drives and motor shafts guides a user (such as a test engineer or a technician) through the steps of testing the motor drive and shaft. The testing device is configured to output testing results to the user. By configuring the testing device to output specific motor drive and shaft measurement results and by guiding a user through the steps of performing the measurement, operation of the testing device is simplified.

An oscilloscope system includes a chassis with an input signal port and a display system located on the chassis that are both coupled to a measurement engine. The measurement engine captures, via an input signal probe that is coupled to the input signal port and a device under test, a first output test pattern that is generated by the device under test in response to a first input test pattern that is received from a transmitter device. The measurement engine derives, using the first input test pattern, a transfer function for the device under test. The measurement engine captures a second input test pattern that is received from the transmitter device and that is different than the first input test pattern and mathematically convolutes, using the second input test pattern, the transfer function for the device under test to generate a reference measurement.

An oscilloscope system includes a chassis with an input signal port and a display system located on the chassis that are both coupled to a measurement engine. The measurement engine captures, via an input signal probe that is coupled to the input signal port and a device under test, a first output test pattern that is generated by the device under test in response to a first input test pattern that is received from a transmitter device. The measurement engine derives, using the first input test pattern, a transfer function for the device under test. The measurement engine captures a second input test pattern that is received from the transmitter device and that is different than the first input test pattern and mathematically convolutes, using the second input test pattern, the transfer function for the device under test to generate a reference measurement.

Generally, in accordance with the various illustrative embodiments disclosed herein, a current sensing probe includes a current-to-voltage conversion circuit that not only presents a desirable impedance into an inductive current sensing element of the current sensing probe, but also remains operationally stable over a wide range of frequencies when measuring a current flowing through a device-under-test. The wide frequency range can extend down to some low frequencies that can prove challenging to conventional current sensing probe circuits.

A measurement input circuit for a measurement device for measuring an electric signal in a device under test comprises a signal input that receives the electronic signal from the device under test and provides the received electronic signal at a signal node, a direct signal coupling path that is coupled between the signal node an electrical ground and comprises a first impedance value, an alternating signal coupling path that is coupled between the signal node and the electrical ground, and comprises a second impedance value that is lower than the first impedance value, and a signal output that is coupled to the signal node and outputs the received electronic signal.

A measurement input circuit for a measurement device for measuring an electric signal in a device under test comprises a signal input that receives the electronic signal from the device under test and provides the received electronic signal at a signal node, a direct signal coupling path that is coupled between the signal node an electrical ground and comprises a first impedance value, an alternating signal coupling path that is coupled between the signal node and the electrical ground, and comprises a second impedance value that is lower than the first impedance value, and a signal output that is coupled to the signal node and outputs the received electronic signal.

A measuring system has an analog-to-digital converter, an acquisition memory, a processing unit, and a display memory. The processing unit is adapted to decode a digital signal according to a protocol creating a decoded signal and to evaluate the decoded signal at a cursor position. The digital data generated by decoding the decoded signal at the cursor position is stored in the display memory. Further, a method for analyzing an analog signal according to a protocol is shown.