Back to results
US 10,557,872 B2Granted
Measuring arrangement and method for contactless electric current measurement
AssigneeTesto AG
InventorsDirk Gopfert, Nebojsa Nesovic, Jorg Volger
Life of this patent
Estimating the term…
Abstract
In a measuring arrangement (1) for contactless electric current measurement, it is provided to detect a common signal of a measuring coil arrangement (2) and a compensating coil arrangement (3) by a first detection device (4) and to detect a signal from at least one measuring coil (6, 7) of the measuring coil arrangement (2) separately therefrom by a second detection device (5, 23).
Claims16
A measuring arrangement (1) for contactless electric current measurement, comprising:
- a measuring coil arrangement (2) having a first measuring coil (6) and a second measuring coil (7),
- a compensating coil arrangement (3) having a first compensating coil (11) connected to one end of the first measuring coil (6) and a second compensating coil (13) connected to one end of the second measuring coil (7),
- a first detection device (4) that detects common signals from the first and second measuring coils (6, 7) of the measuring coil arrangement (2) and the first and second compensating coils (11, 13) of the compensating coil arrangement (3),
- a second detection device (5) that separately detects a signal of the first measuring coil (6) of the measuring coil arrangement (2),
- an electric conductor receptacle (8),
- the first and second measuring coils are located on mutually opposite sides (35, 36) of the electric conductor receptacle (8), and
- the compensating coil arrangement (3) having a third compensating coil (12) and a fourth compensating coil (14), wherein the third compensating coil (12) being connected to an other end of the first measuring coil (6) from the first compensating coil (11), and the fourth compensating coil (14) being connected to an other end of the second measuring coil (7) from the second compensating coil (12).
4 more elements
A measuring arrangement (1) for contactless electric current measurement, comprising:
- a measuring coil arrangement (2) having a first measuring coil (6) and a second measuring coil (7),
- a compensating coil arrangement (3) having a first compensating coil (11) connected to one end of the first measuring coil (6) and a second compensating coil (13) connected to one end of the second measuring coil (7),
- a first detection device (4) that detects common signals from the first and second measuring coils (6, 7) of the measuring coil arrangement (2) and the first and second compensating coils (11, 13) of the compensating coil arrangement (3),
- a second detection device (5) that separately detects a signal of the first measuring coil (6) of the measuring coil arrangement (2),
- an electric conductor receptacle (8),
- the first and second measuring coils are located on mutually opposite sides (35, 36) of the electric conductor receptacle (8), and
- a third detection device (23), wherein a signal of the first measuring coil (6) of the measuring coil arrangement (2) is detectable by the second detection device (5) and a signal of the second measuring coil (7) of the measuring coil arrangement (2) is detectable by the third detection device (23).
4 more elements
Dependencies are inferred from the claim text.