A gravimetric microprobe is a Starfleet device used aboard Deep Space 9.

In 2370, Jadzia Dax had Arjin set up a gravimetric microprobe to study an object (later revealed to be a protouniverse) they had snagged on their runabout's hull. (DS9: "Playing God")

Gravimetrics
distortion • disturbance • eddy • energy • field • fluctuation • flux density • force • gradient • interference • microprobe -• radiation • scanner • sensor • shear • torpedo • wave