The ornamental design for a currentmeasuringsensor, as shown and described.
1. Current measuring sensor
1.1 : Perspective
1.2 : Perspective
1.3 : Front
1.4 : Back
1.5 : Top
1.6 : Bottom
1.7 : Left
1.8 : Right
The break lines in the drawings indicate that the appearance of any portion of the current measuring sensor between the break lines forms no part of the claimed design.