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US 8,910,533 B2Granted
Method for pressure compensating a transducer
AssigneeHalliburton Energy Services, Inc.
InventorVoldi E. Maki, Jr.
Life of this patent
Estimating the term…
Abstract
Various embodiments include apparatus and methods of providing a sensor, in a transducer subassembly, having a backing (1) coupled to a housing (7) without bonding the sensor to the housing such that the sensor is effectively mechanically decoupled from the housing except for longitudinal waves traveling through the front face of the transducer subassembly. Additional apparatus, systems, and methods are disclosed.
Claims19
A method comprising:
- attaching a backing of a sensor to a housing without bonding the sensor to the housing, the housing structured to operate at pressures and temperatures associated with drilling in a borehole;
- and
- applying oil through one or more openings provided by using a tape such that the oil permeates the backing and the sensor in the housing, wherein the sensor is decoupled from the housing except for coupling of the sensor to the housing by the oil and the backing, the oil being pressure compensating oil.
An apparatus comprising:
- a housing structured to operate at pressures and temperatures associated with drilling in a borehole;
- a sensor bonded to a backing in a subassembly, the backing attached to the housing without the sensor bonded to the housing;
- oil separating a surface of the sensor from an interior surface of the housing such that the sensor is decoupled from the housing except for coupling by the oil and the backing, the oil being pressure compensating oil, the oil having a thickness corresponding to access of the oil to the sensor provided by tape removed from the subassembly after the backing is bonded to the housing.
Dependencies are inferred from the claim text.