Abstract: A system for detection, measurement, analysis and plotting of electrocardiographic signals with amplitudes ranging down to one microvolt (micropotentials) employing long term ambulatory (Holter) recordings. Multi-channel electrocardiograms are recorded on a Holter recorder that inscribes calibration pulses at the beginning of each tape. The tape is played back at high speed on a scanner which uses the recorded calibration pulses to automatically calibrate the signal gains for each signal channel. The played back signals are digitized at sufficient resolution and sampling rate to permit analysis of micropotentials. The digitized raw data is stored in a permanent computer file available for multiple further analyses. A template heart beat is designated and the raw data file is signal averaged to reduce random noise.

Abstract: A remote scoring system for an air-to-ground strafing range is disclosed which utilizes a pair of vector sensors for each target to pinpoint a target hit and/or miss by means of shell shock wave amplitude and time of arrival (TOA) differentials of the shock wave between the two sensors. The invention also encompasses at least one down range cease-fire sensor that utilizes a TOA of the shell shock wave and its respective muzzle blast to determine a ceasefire distance from the target. Unique signal processing of data is designed for immediate display and/or printout.

Abstract: A microcomputer controlled electronic fuze capable of surviving a hard tat impact is disclosed comprising two epoxy potted printed circuit boards mounted back to back of which one of the boards is designed to survive impact and contains the microcomputer controller, storage charge, timing circuit, and fire pulse detonator circuit. The other board carries an electric motor drive circuit for mechanical timing and detonator alignment, a detonation delay command storage circuit, and an AC rectifier and voltage regulator circuit coupling a wind turbine generator power supply to the fuze.

Abstract: A unidirection circularly polarized dual armed spiral antenna of a stripl printed circuit configuration is disclosed. The antenna is powered by a planar, edge connected, balun. The radial arms may be configured to spiral in any one of a multiplicity of different patterns and are not limited solely to Archimedean or logarithmic spirals.

Abstract: The invention relates to an electrical mechanical interfacing device for e and arm fuze systems of different stores such that a variable electrical and mechanical connecting capability is provided for different aircraft requirements.

Abstract: This invention describes a VMOS-FET, IMPATT diode pulse bias circuit desid to provide a Gallium Arsenide IMPATT diode with a specified operating voltage and current under required conditions to generate an RF pulse.

Abstract: A safe-arm simulator device for use in training personnel in maintaining operating a missile rocket motor fuze safe-arm device of the type presently utilized on live missiles is disclosed. The device comprises a spring mounted on a rotatable shaft contained within a cylindrical housing. The housing is inserted in a bored hole of a dummy missile, exposing a key slot in the base of the shaft. A key is mounted on the device for turning the device from a safe to arm position. The spring offers resistance to turning similarly incurred in a live safe-arm device and likewise returns and maintains the device in a safe orientation unless locked in the arm position.

Abstract: A stored charge circuit having a transient error such as a ringing or the ke in response to a step function or other transient error initiating input signal is presented. Normally open switches are connected across at least some of the resistors of the circuit and are closed for an interval of time upon the occurrence of a transient error thereby changing the transient error.

Abstract: An apparatus for forming fiducial marks on an imaging surface of a video e comprising a laser system that outputs an alignment focused beam and a pulsed focused beam upon command, a driven jig positioner that holds and moves the video tube, a controller programmed to move the jig in a predetermined manner so that fiducial marks are formed on the tube in a desired pattern, and video monitoring means for observing said focused beams on the imaging surface.

Abstract: This invention comprises a cryogenic cooling device operating in the manner f a split Stirling cycle engine whereby a sinusoidal pressure-wave generator distal to a regenerator displacer piston and accompanying cylinder, individually compresses in a delayed manner and expands a contained volume of gas in an expander housing respective to regenerator displacer piston travel to bring about a cooling effect in an attached displacer housing.

Abstract: A stripline printed circuit power divider is disclosed disposed on opposite ides of a central dielectric substrate in a three substrate layered stripline orientation. An electrically coupled, coplanar, dual lead of the power divider disposed on opposite sides of the central dielectric substrate is joined into a single lead on one side of the substrate by diverting each coplanar lead and passing one lead through a hole in the dielectric to be joined with the other lead on a single surface of the dielectric.

Abstract: The invention discloses a self-controlled, portable gas compressor which lizes a low pressure air source to compress a high pressure air source in a single stage booster compressor pump which is automatically shut down by an air pilot switch when a predetermined pressure is reached.