Inductively coupled force balance instrument
First Claim
Patent Images
1. An inductively coupled force balance instrument comprising:
- an instrument body;
a sensitive element having a shorted coil of conductive material associated with said body for relative movement in response to acceleration of the body;
means for generating a primary magnetic flux intersecting the shorted coil; and
means for inducing within the shorted coil a current which interacts with said primary magnetic flux to generate a force opposing said movement.
1 Assignment
0 Petitions
Accused Products
Abstract
Corrective forces are applied to a movable sensitive element of a force balance instrument by inducing a current within a coil of conductive material carried by the sensitive element so that the coil interacts with an external magnetic field. The sensing element is typically maintained at a null position by controlling the interaction between the coil and the external field. In a specific embodiment, the sensing element has at least one coil wound about each of three orthogonal axes and currents are induced within each of the coils to suspend the element.
10 Citations
13 Claims
-
1. An inductively coupled force balance instrument comprising:
-
an instrument body; a sensitive element having a shorted coil of conductive material associated with said body for relative movement in response to acceleration of the body; means for generating a primary magnetic flux intersecting the shorted coil; and means for inducing within the shorted coil a current which interacts with said primary magnetic flux to generate a force opposing said movement. - View Dependent Claims (2, 3, 4, 5, 6, 7)
-
-
8. An inductively coupled force balance instrument comprising:
-
an instrument body; a sensitive element associated with said body for relative movement in response to acceleration of the body, the sensing element having at least one shorted coil of conductive material aligned with each of three mutually orthogonal axes; means for generating a primary magnetic flux intersecting each shorted coil; and means for inducing within each shorted coil a current which interacts with the primary magnetic flux to generate forces opposing said movement. - View Dependent Claims (9, 10, 11, 12, 13)
-
Specification