Multiprobe measurement device and method

Patent metadata

Field	Value
Publication number	US-11867724-B2
Application number	US-202117504167-A
Country	US
Kind code	B2
Filing date	Oct 18, 2021
Priority date	Oct 12, 2017
Publication date	Jan 9, 2024
Grant date	Jan 9, 2024

Abstract

A measuring system for measuring signals with multiple measurement probes includes a multi probe measurement device having at least two probe interfaces that each couple the multi probe measurement device with at least one of the measurement probes, a data interface that couples the multi probe measurement device to a measurement data receiver, and a processing unit coupled to the at least two probe interfaces that records measurement values via the at least two probe interfaces from the measurement probes. The processing unit is further coupled to the data interface and provides the recorded measurement values to the measurement data receiver that also includes a data interface. The data interface of the measurement data receiver is coupled to the data interface of the multi probe measurement device.

First claim

The invention claimed is:

1. A measuring system for measuring signals with multiple measurement probes, the measuring system comprising:
a measurement data receiver comprising analog input channels for recording measured analog signals of an external device under test,
multiple measurement probes which are configured to measure signals of the external device under test, which are different to the analog signals,
a multi probe measurement device coupled to the measurement data receiver and comprising:
at least two probe interfaces which are connectable or connected to corresponding ones of the measurement probes and which are configured to receive the measured signals,
a processing unit coupled to the at least two probe interfaces and configured to record measurement values contained in the measured signals, wherein the processing unit is further coupled to the first data interface and is further configured to provide the recorded measurement values to the measurement data receiver, and

wherein the multi probe measurement device in combination with the measurement data receiver are arranged and configured such to perform a timely aligned analysis or a correlated analysis of the measured signals of the external device under test with the measured analog signals of the same device under test.

2. The measuring system of claim 1 , wherein the measurement data receiver comprising a first data interface, and the multi probe measurement device comprising a second data interface coupled to the first data interface for coupling the multi probe measurement device to the measurement data receiver.

3. The measuring system of claim 1 , wherein the measuring system is configured to analyze the signals measured by the measurement probes together with the analog signals measured via the analog channels of the measurement data receiver to perform an analysis of the respective device under test.

4. The measuring system of claim 1 , wherein the multiple measurement probes comprise at least one of:
a temperature sensor,
an acceleration sensor,
a light intensity sensor,
a color sensor,
a viscosity sensor for liquids,
a gas sensor.

5. The measuring system according to claim 1 , the multi probe measurement device comprising a timer coupled to the processing unit, wherein the processing unit provides the recorded measurement values with a time stamp.

6. The measuring system according to claim 1 , wherein the processing unit of the multi probe measurement device receives a synchronization message via the data interface and configures the tinier according to the synchronization message.

7. The measuring system according to claim 1 , wherein the at least two probe interfaces of the multi probe measurement device comprise a wired digital data interface, especially a USB interface and/or a LAN interface and/or a CAN interface and/or a CAN-FD interface and/or a LIN interface and/or a FlexRay interface and/or an I2C interface and/or a SENT interface, and/or
wherein the at least two probe interfaces of the multi probe measurement device comprise a wireless digital interface, especially a WIFI interface and/or a Bluetooth interface, and/or
wherein the at least two probe interfaces of the multi probe measurement device comprise an analog interface, especially a voltage interface and/or a current interface aid/or a thermocouple interface; and/or
wherein the multi probe measurement device comprises at least two probe interfaces of the same type.

8. The measuring system according to claim 1 , wherein the data interface of the multi probe measurement device comprises at least one digital data channel and/or at least one analog data channel, and especially one digital data channel and four analog data channels.

9. The measuring system according to claim 1 , the multi probe measurement device comprising a trigger unit that outputs a trigger event signal via the data interface if a predetermined condition is detected on one of the probe interfaces.

10. The measuring system according to claim 1 , wherein the measurement data receiver comprises a master clock device that generates a synchronization message and provide the synchronization message via the data interface to the multi probe measurement device, especially wherein the synchronization message conforms to the LSI protocol.

11. The measuring system according to claim 1 , wherein the measurement data receiver comprises a first number of analog measurement channels and a switching matrix, and
wherein the multi probe measurement device comprises a second number of analog input channels, and
wherein the switching matrix controllably switches up to the first number of analog measurement channels of the measurement data receiver to the data interface for receiving analog signals from the analog inputs of the multi probe measurement device.

12. The measuring system according to claim 1 , wherein the measurement data receiver comprises a control unit coupled to the data interface that automatically identifies the multi probe measurement device when the multi probe measurement device is connected to the measurement data receiver via the data interface.

13. The measuring system according to claim 1 , wherein the multi probe measurement device transmits information about measurement probes connected to the multi probe measurement device via the data interface upon connection of the multi probe measurement device to the measurement data receiver.

14. The measuring system according to claim 1 , wherein the measurement data receiver comprises a power supply that supplies the multi probe measurement device with electrical power via the data interface.

15. The measuring system according to claim 1 , wherein the measurement data receiver comprises a first number of analog measurement channels that acquire first measurement values,
wherein the measurement data receiver comprises a processor that determines a number of characteristic values for the first measurement values.

16. The measuring system according to claim 15 , wherein the first measurement values are acquired according to a base parameter that is common between the analog measurement channels and the measurement values recorded via the at least two probe interfaces, especially wherein the common base parameter comprises a common time base.

17. The measuring system according to claim 16 , wherein the first measurement values and/or the respective characteristic values, and the second measurement values together with the base parameter form a triple that is stored in the measurement memory.

18. The measuring system according to claim 15 , wherein the characteristic values comprise a period and/or a frequency and/or a mean value and/or a median value and/or a standard deviation.

19. The measuring system according to claim 15 , wherein the measurement data receiver comprises a measurement memory that is coupled to the analog measurement channels and the processor, wherein the first measurement values and/or the respective characteristic values are stored in the measurement memory with the second measurement values.

20. A measuring system for measuring signals with multiple measurement probes, the measuring system comprising:
a measurement data receiver comprising analog input channels for recording measured analog signals,
multiple measurement probes which are configured to measure signals, which are different to the analog signals,
a multi probe measurement device coupled to the measurement data receiver and comprising:
at least two probe int

Assignees

• Rohde & Schwarz

Inventors

• Bresser Gerd
• Reich Friedrich

Classifications

• G01R13/02 Primary

  for displaying measured electric variables in digital form · CPC title

• G01R1/06788

  Hand-held or hand-manipulated probes, e.g. for oscilloscopes or for portable test instruments (end pieces terminating in a probe H01R11/18) · CPC title

• G01R1/073

  Multiple probes · CPC title

• G01R1/07307

  with individual probe elements, e.g. needles, cantilever beams or bump contacts, fixed in relation to each other, e.g. bed of nails fixture or probe card · CPC title

• G01R13/28

  Circuits for simultaneous or sequential presentation of more than one variable · CPC title