Capacitive torque sensor

Abstract

Abstract 1. A capacitive torque pick-up comprising a torsion shaft, capacitor plates which are secured to the shaft in two cross-sectional planes of the shaft spaced apart and arranged in parallel planes symmetrical with respect to the longitudinal axis of the shaft, said capacitor plates having a distance apart which is variable so as to be proportional to the torsion, and with electrical analysis of the resulting changes in capacity, characterised in that as a torsion shaft, a torsion pipe (3) is provided in the interior of which a capacitor plate (4) is arranged which is secured to one (2) of two flanges (2, 2') which are connected to the two ends of the torsion pipe (3), and in which torsion pipe (3), at least one further plate (5a), which is secured to the other flange (2') and arranged so as to be spaced from and parallel to the capacitor plate (4), carries two capacitor coatings (5b, 5c) on either side of a centre line which extends in the axial direction of the torsion pipe (4) on the side of said plate (5a) which faces towards the capacitor plate (4).

Inventors

• 👤 Tamai Dipl.-Ing. Mitsuru
• 👤 Takeshi Dipl.-Ing. Yasuhara

Bibliographic Details