Measurement device

Patent metadata

Field	Value
Publication number	US-11162989-B2
Application number	US-202016788902-A
Country	US
Kind code	B2
Filing date	Feb 12, 2020
Priority date	Feb 12, 2020
Publication date	Nov 2, 2021
Grant date	Nov 2, 2021

Abstract

A measurement device with improved electrical strength comprises an input for receiving an input signal as well as a measurement circuit connected with the input. The measurement circuit has at least one component. The measurement device also comprises an electrical interface provided in addition to the input. The measurement device further comprises at least one internal enclosure that encloses the component within the measurement device, thereby improving the electrical strength of the measurement device.

First claim

The embodiments of the invention in which an exclusive property or privilege is claimed are defined as follows:

1. A measurement device with improved electrical strength, said measurement device comprising:
an input for receiving an input signal;
a measurement circuit connected with said input, said measurement circuit comprising at least one component;
an electrical interface provided in addition to said input; and
at least one internal enclosure that encloses said component within said measurement device, thereby improving the electrical strength of said measurement device,
wherein said input and said measurement circuit connected thereto are configured to provide at least two different measurement paths for different measurements, said at least two different measurement paths are connected with said single input.

2. The measurement device according to claim 1 , wherein said measurement device has an external housing that encompasses said internal enclosure.

3. The measurement device according to claim 1 , wherein said internal enclosure provides an electromagnetic shielding.

4. The measurement device according to claim 1 , wherein said internal enclosure is at least one of watertight and dust-tight.

5. The measurement device according to claim 1 , wherein said input is at least one of watertight and dust-tight.

6. The measurement device according to claim 1 , wherein said electrical interface is at least one of watertight and dust-tight.

7. The measurement device according to claim 1 , wherein an inner space of said internal enclosure is hermetically sealed.

8. The measurement device according to claim 1 , wherein said internal enclosure comprises a sealing cord that provides at least one of an electromagnetic shielding, a water seal and a dust seal.

9. The measurement device according to claim 8 , wherein said sealing cord is disposed circumferentially around a rim of said internal enclosure.

10. The measurement device according to claim 1 , wherein said at least one component is a printed circuit board.

11. The measurement device according to claim 10 , wherein said printed circuit board comprises a multilayer structure.

12. The measurement device according to claim 11 , wherein said electrical interface is buried in an inner layer of said multilayer structure.

13. The measurement device according to claim 10 , wherein said printed circuit board carries further components of said measurement circuit.

14. The measurement device according to claim 1 , wherein said electrical interface corresponds to at least one of a power supply for receiving power, a control signal input for receiving a control signal and an output for outputting an output signal.

15. The measurement device according to claim 1 , wherein said measurement device is an oscilloscope.

16. The measurement device according to claim 1 , wherein said at least two different measurement paths share said at least one component of said measurement circuit.

17. The measurement device according to claim 1 , wherein a first measurement path and a second measurement path relate to a high-impedance measurement path and an impedance-controlled measurement path.

18. A measurement device with improved electrical strength, said measurement device comprising:
an input for receiving an input signal;
a measurement circuit connected with said input, said measurement circuit comprising at least one component;
an electrical interface provided in addition to said input; and
at least one internal enclosure that encloses said component within said measurement device, thereby improving the electrical strength of said measurement device,
wherein said internal enclosure comprises a sealing cord that provides at least one of an electromagnetic shielding, a water seal and a dust seal, and
wherein said sealing cord is disposed circumferentially around a rim of said internal enclosure.

19. A measurement device with improved electrical strength, said measurement device comprising:
an input for receiving an input signal;
a measurement circuit connected with said input, said measurement circuit comprising at least one component;
an electrical interface provided in addition to said input; and
at least one internal enclosure that encloses said component within said measurement device, thereby improving the electrical strength of said measurement device,
wherein said measurement device has an external housing that encompasses said internal enclosure that is enclosed by said external housing, and
wherein said internal enclosure corresponds to an encapsulation that encapsulates said component of said measurement circuit such that a delivery state of said component is preserved due to said internal enclosure.

Assignees

• Rohde & Schwarz

Inventors

• Zimmermann Dirk
• Strasser Franz
• Wirnshofer Martin
• Welz Martin

Classifications

• G01R27/04

  in circuits having distributed constants {, e.g. having very long conductors or involving high frequencies} · CPC title

• G01R1/04 Primary

  Housings; Supporting members; Arrangements of terminals · CPC title

• G01R1/18

  Screening arrangements against electric or magnetic fields, e.g. against earth's field · CPC title

• G01R27/025 Primary

  Measuring very high resistances, e.g. isolation resistances, i.e. megohm-meters · CPC title