The present invention relates to an improved recording of context information for a measurement. For this purpose, it is suggested to receive context information from a user and to generate a dataset comprising the received context information. The context information may comprise one or more voice annotation. By using voice annotations for specifying context information of a measurement, a very simple and easy format for acquiring the context information from a user is achieved.

A measurement apparatus and a method for controlling a measurement apparatus is provided. The measurement apparatus comprises an ultrasonic sensor for receiving a further user input. The further user input may be used to identify a specific user. Accordingly, the measurement apparatus can be automatically configured based on data related to the identified user. Since the ultrasonic sensor may be operated even if the ultrasonic sensor is covered by a protecting element, the robustness of the measurement apparatus can be further improved.

A method of dynamically determining an oscilloscope noise characteristic includes retrieving a power spectral density (PSD) model of noise from a storage based upon a current configuration of the oscilloscope, generating a representation of any filtering being applied to a waveform generated by a device under test, using the PSD and the representation to produce a modified power spectral density, and using the modified power spectral density to determine a dynamic oscilloscope noise characteristic. A test and measurement instrument has one or more inputs to acquire waveforms from a device under test (DUT), one or more processors to retrieve a power spectral density (PSD) model of noise from a database, generate a representation of any filtering being applied to a waveform generated by the DUT, use the PSD and the representation to produce a modified PSD, and use the modified PSD to determine a dynamic instrument noise characteristic.

The present invention provides a measuring device (1, 11) for measuring signals (2, 12), the measuring device (1, 11) comprising a data memory (4, 14) configured to store device data (5, 15) for the measuring device (1, 11), and a data interface (6, 16) connected to the data memory (4, 14) and configured to read the device data (5, 15) from the data memory (4, 14) and output at least a part of the read device data (5, 15) to an external memory device (7, 17) in a storage mode and to read device data (5, 15) from the external memory device (7, 17) and store the read device data (5, 15) in the data memory (4, 14) in a recovery mode. The present invention further provides a corresponding method for such a measuring device (1, 11).

The present invention relates to a test or measurement instrument, comprising a test unit, a memory, a display, a network interface and a processing unit. The processing unit is configured to generate a machine-readable representation of data such as a QR code which comprises encoded address information of the data file stored in the memory. The processing unit is further configured to display the generated QR code on the display for enabling an external network device to download the stored data file via the network interface after having scanned the displayed QR code and decoded the address information encoded therein. The invention further relates to a method for enabling a network device to downloaded data stored in a test or measurement instrument.

A novel modular probe may include an interchangeable (connectable/disconnectable) probe-tip adaptor having a tip connector for coupling to a device under test, and further having a probe-tip terminal for coupling to a first assembly connector of a cable assembly, which further has a second assembly connector for coupling to a first build-out terminal of a build-out adaptor, which also has a second build-out terminal for coupling to an assembly connector of an interchangeable instrument connector cable assembly, which also has an instrument-end connector for coupling to a measurement instrument. The built-out adaptor may include a compensation adjustment circuit for compensating the probe for varying system capacitances. The probe may include one or more corrective circuits in the interchangeable probe-tip adaptor and/or in the build-out adaptor for at least partially terminating each end of the cable assembly with a characteristic impedance of the cable in the cable assembly to attenuate reflections.

A novel modular probe may include an interchangeable (connectable/disconnectable) probe-tip adaptor having a tip connector for coupling to a device under test, and further having a probe-tip terminal for coupling to a first assembly connector of a cable assembly, which further has a second assembly connector for coupling to a first build-out terminal of a build-out adaptor, which also has a second build-out terminal for coupling to an assembly connector of an interchangeable instrument connector cable assembly, which also has an instrument-end connector for coupling to a measurement instrument. The built-out adaptor may include a compensation adjustment circuit for compensating the probe for varying system capacitances. The probe may include one or more corrective circuits in the interchangeable probe-tip adaptor and/or in the build-out adaptor for at least partially terminating each end of the cable assembly with a characteristic impedance of the cable in the cable assembly to attenuate reflections.

An electrical measurement device for measuring at least one electrical signal is described, the electrical measurement device comprising an electrical measurement unit for measuring the electrical signal and for deriving at least one measurement parameter from the measured electrical signal, an acoustic processing unit for processing a signal obtained from the electrical measurement unit, and a loudspeaker for outputting an acoustic signal representative of the signal obtained from the electrical measurement unit. The acoustic processing unit is configured to generate the acoustic signal to be outputted by the loudspeaker. The acoustic processing unit is further configured to modulate a predetermined acoustic signal by the at least one measurement parameter.

An electrical measurement device for measuring at least one electrical signal is described, the electrical measurement device comprising an electrical measurement unit for measuring the electrical signal and for deriving at least one measurement parameter from the measured electrical signal, an acoustic processing unit for processing a signal obtained from the electrical measurement unit, and a loudspeaker for outputting an acoustic signal representative of the signal obtained from the electrical measurement unit. The acoustic processing unit is configured to generate the acoustic signal to be outputted by the loudspeaker. The acoustic processing unit is further configured to modulate a predetermined acoustic signal by the at least one measurement parameter.

A radio frequency (RF) test probe adapter comprises a cable adapter operable for use with a RF test probe and a housing. The cable adapter comprises a cable connector configured to physically couple to a connector of a coaxial cable, a first pin operable to electrically couple a center conductor of the coaxial cable to a first lead of the RF test probe, and a second pin operable to electrically couple an outer conductor of the coaxial cable to a second lead of the test probe. The housing is sized and shaped to secure the RF test probe and the cable adapter in a physically coupled configuration