An integrated circuit physical layout has been developed for the RSDL ASIC™ — an integrated circuit that encodes telemetry data and transfers the data (which are grouped together in transfer frames) to a radio transmitter. The RSDL ASIC is described in "ASIC for...

The Simple Analysis of Materials Processing Reactors (SAMPR) computer code is meant for the analysis of plasma and nonplasma processes used in manufacturing semiconductors. The code can also be used to analyze any chemical-processing reactor with gaseous (but not liquid) streams.

A technique for estimating the boresight direction of a Global Positioning System (GPS) receiver antenna involves utilization of the relationship between the strengths of received signals and the direction-dependent antenna gain pattern. The technique is fundamentally different from, and...

An automated system of laboratory equipment and computer hardware and software reduces the time that technicians must spend in calibrating temperature transducers. The laboratory equipment includes a controlled-temperature bath, two digital multimeters for processing the outputs of two temperature...

A report discusses the performance of a soft digital-data-transition tracking loop (DTTL) in a radio receiver that recovers digital data conveyed by binary phase-shift keying. The DTTL is used as a symbol synchronizer; it provides symbol timing to essential parts of the receiver. The DTTL...

A report discusses a class of balloon-borne robotic instrumentation systems that have been proposed for use in exploring Venus, Jupiter, Saturn, Uranus, and Neptune. The balloons would be of the Montgolfier type; that is, buoyancy would be achieved through heating of atmospheric gases contained...

An automated system of computer hardware and software has been developed for managing construction projects at Stennis Space Center. This system replaces an older collection of paper-based subsystems, wherein documents were copied, filed, and distributed in labor-intensive processes. Data...

A hydraulically driven high-speed spindle system for milling, machining, facing, drilling, and joining metallic and nonmetallic materials has been developed. Spindles are the most critical elements of high-speed milling machines. The keys to successful design of high-speed spindles are...

A report presents an analysis of stresses and deflections in resistance temperature detectors (RTDs) of various model numbers with standard sizes and shapes. The RTDs are assumed to be installed in pipes that contain flows of oxygen and hydrogen in a test facility at Stennis Space Center. The analysis,...

A proposed lightweight, off-axis reflector structure for a microwave communication antenna would be made of a carbon/carbon composite material. The structure was conceived for use aboard the Solar Probe spacecraft, where it would also serve as a shield to protect the spacecraft against solar radiation at...

An integrated circuit (IC) physical layout has been developed for the HCD ASIC - an application-specific integrated circuit that decodes digital command signals transmitted from a ground station to a spacecraft (uplink commands). The HCD ASIC is described in "Hardware-Command-Decoding ASIC" (NPO-19615), which...