Abstract: The present invention is a method for improved mud pulse telemetry. Mud pulse signals generated by a downhole mud pulser are detected at the surface by monitoring mud flow rate. Mud flow rate can be monitored by use of a flow meter placed downstream from the surge suppressor.
Abstract: A device for measuring fuel flow to a power plant such as a turbo fan engine with a very high degree of accuracy, for example, .+-.0.5%. A tubular flow loop having quick disconnect fittings for detachably connecting the loop between the aircraft fuel system outlet and the engine fuel inlet is disclosed. Two specially calibrated mass flow transmitters are arranged in series, each preceded by a straight section of piping having a preferred given length to diameter ratio. Preceding each of the two straight pipe sections is a honeycomb flow straightener and three in-series perforated plates for removing any effects of upstream flow characteristics from the transmitters.
Type:
Grant
Filed:
October 17, 1984
Date of Patent:
May 6, 1986
Assignee:
The United States of America as represented by the Secretary of the Air Force
Inventors:
Thomas C. Chandler, Howard C. Heimberger, Thomas C. Patten
Abstract: A partially adaptive array which compensates for jamming. The array is comprised of more than 1000 elements and uses a bootlace lens to form a family of beams from which an adaptive array chooses at least one beam of the family of beams that most closely represents the jamming, and subtracts the beam from a main beam. In this way jamming of the beam is compensated for.
Abstract: A projectile having an extendible nose portion which will extend the diste between the shaped charge of a projectile and the surface of the target at the time of detonation.
Type:
Grant
Filed:
May 23, 1985
Date of Patent:
May 6, 1986
Assignee:
The United States of America as represented by the Secretary of the Army