[en] A high power and high energy battery power supply is currently being designed to support electromagnetic (EM) launcher research at the Air Force Armament Laboratory, Eglin Air Force Base, Florida. The design goals for this system are to supply megawatts of pulsed power at high current levels for a five second period. This paper discusses the rationale which led to this system selection. The specific system design is also discussed along with the issues of safety, charging, diagnostics, control system configuration, power conditioning and the problem of high-current switching

[en] Three batteries were operated in parallel from a common bus during charge and discharge. SMM utilized NASA Standard 20AH cells and batteries, and LANDSAT-D NASA 50AH cells and batteries of a similar design. Each battery consisted of 22 series connected cells providing the nominal 28V bus. The three batteries were charged in parallel using the voltage limit/current taper mode wherein the voltage limit was temperature compensated. Discharge occurred on the demand of the spacecraft instruments and electronics. Both flights were planned for three to five year missions. The series/parallel configuration of cells and batteries for the 3-5 yr mission required a well controlled product with built-in reliability and uniformity. Examples of how component, cell and battery selection methods affect the uniformity of the series/parallel operation of the batteries both in testing and in flight are given

No abstract available

[en] Short communication

[en] Papers are presented on liquid droplet radiator thermal characteristics, battery designs, mobile satellite communications, space-based air traffic surveillance, the Italsat regenerative downlink performance, nondisruptive group delay and amplitude measurement, the Polar Platform of the Space Shuttle, EVA tasks and services, fault diagnosis, and an autonomous power system test bed. Topics discussed include space debris and manned space operations, data transport and command management services for the Space Station, a thermodynamic approach to data processor analysis, anomaly detection and resolution system, the Telemetry, Timing, Command, and Control system, the Space Construction Shuttle Flight experiment, and structural analysis of the Space Shuttle propulsion components. Consideration is given to electrostatic charging and arc discharges on satellite dielectrics, the attitude control system of the IUE, orbital acceleration, spaceborne distributed aperture/coherent array processing, the propulsion module for the Columbus Space Platform, the next-generation STS, trajectory performance evaluation, the Hubble Space Telescope, a linear quadratic tracker for control moment gyro based attitude control of the Space Station, and existing satellite systems and networks

[en] This paper describes a battery having a housing. It comprises: aluminum, chromium, niobium and carbon in the following approximate atomic ratio: Ti_52-42Al_46-50Cr_1-3NB_1-5C_0.05-0.2

[en] Surface temperature of a rotating flywheel is measured remotely by inducing fluorescence from a pulsed nitrogen laser in lanthanum oxysulfide adhered to the surface. 4 references, 11 figures

[en] Recommended design practices and procedures for storage, location, mounting, ventilation, instrumentation, preassembly, and assembly of large lead sealed-cell storage batteries are specified. Required safety practices are also included

[en] Methods are described for defining the dc load in a generating station or substation and for sizing a lead storage battery to supply that load. Some factors relating to cell selection are presented. The installations considered are designed for full float operation with a battery charger serving to maintain the battery in a charged condition as well as to supply the normal dc load

[en] General descriptions of the NUMATRON design and related technical developments at INS, University of Tokyo, are reported. A test accumulation ring for the NUMATRON project, TARN, was constructed for integrating various technical developments. Recent results of the injection test using this ring are also described