Robot equipped with capacitive detection
AssigneeFogale Nanotech
InventorsDidier Roziere, Frédéric Ossart
Life of this patent
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Abstract
A robot includes a body on which is mounted a functional head also including a capacitive detector, including: at least one electrical insulator in order to electrically insulate the functional head; at least one apparatus for electrically polarizing the functional head at a first alternating electrical potential (Vg), different from a ground potential; at least one guard polarized at an alternating guard potential (VG) identical to the first alternating electrical potential; and at least one electronics, called detection electronics, for measuring a signal relating to a coupling capacitance, called electrode-object capacitance, between the sensitive part and a surrounding object.
Claims16
A robot including a body and a functional head removably mounted on the body, where the functional head forms a tool, or a tool-holder, the robot also comprising capacitive detection means comprising:
- a sensitive part configured as the functional head, wherein the functional head acts as a capacitive detection electrode that detects an object or person in a detection zone around the functional head;
- at least one electrical insulator to electrically insulate the sensitive part of said functional head from the rest of the robot;
- at least one means for electrically polarizing said sensitive part by a first alternating electrical potential (Vg), different from a ground potential;
- a guard that is polarized at a second alternating potential (VG), where the second alternating potential (VG) is identical or substantially identical to the first alternating electrical potential (VG) at a given working frequency, to electrically guard said sensitive part;
- and
- detection electronics configured for measuring a signal relating to a coupling capacitance between said sensitive part and a surrounding object.
Dependencies are inferred from the claim text.