Methods of assessing structural integrity for space shuttle vehicles

A detailed description and evaluation of nondestructive evaluation (NDE) methods are given which have application to space shuttle vehicles. Appropriate NDE design data is presented in twelve specifications in an appendix. Recommendations for NDE development work for the space shuttle program are presented

Optical technology for flight control systems

Optical applications to the flight control system including optical data bus, sensors, and transducers are analyzed. Examples of optical data bus include airborne light optical fiber technology (ALOFT), F-5E, YA-7D, MIL-STD-1553 fiber optic data bus and NAL-optic data bus. This NAL-optic data bus is applied to STOL, and its characteristics are stressed. Principles and advantages of optical pulse-digital transducers are discussed

Implementation of packaged integrated antenna with embedded front end for Bluetooth applications

The design, integration and realization of system in enhanced package approach towards fully functional system level integration by using a compact Bluetooth USB dongle as the demonstrator is presented here. The integration was done on FR4 substrates, which is totally compatible with today’s printed circuit board manufacturing capability. A commercially available Bluetooth integrated chip was chosen as the chipset of our demonstrator, and a package integrated antenna together with an embedded front end completes the system in package integration. The front end developed here is based on an embedded meander line combline filter and an embedded transformer balun. The filter has a 35% area reduction when compared with the classical combline filter and similar performance. The balun has the coils distributed on three layers that minimized the board area needed it and optimizes the performances. The proposed packaged integrated antenna approach is successfully demonstrated here and the new module shows excellent performance when compared with a commercial solution, surpassing the normal Bluetooth class II dongle range which is up to 10 m and increasing the module range up to 120 m without an extra power amplifier

Inertial gyroscope system application considerations

Criteria for designing inertial gyroscope system

Differential Sensor for PH Monitoring of Environmental Objects

Differential pH sensor is proposed. Reference electrode and measuring electrode are the same type. Reference electrode is immersed in standard buffer solution with known pH value. The differential pH sensor has longer service life as compared with the traditionally used sensors with silver chloride reference electrode. Ultrasonic cleaning system is proposed to clean the primary measuring transducer from pollution that form as result of silting during long-term operation with the sensor

Performance characteristics of 15 kVA homopolar inductor alternator for 400 Hz Brayton-cycle space-power system

Performance test of homopolar inductor alternator for Brayton cycle space power syste

Advanced electronic technology and the design and development of an integral circuit, multi-channel telemetry system for bio-medical applications Final report, Mar. 1966 - Feb. 1969

Application of electronic technology to design and development of integrated circuit, telemetry system for biomedicin

Finite element analysis and design optimisation of shaded pole induction motors

SIGLEAvailable from British Library Document Supply Centre-DSC:DX212729 / BLDSC - British Library Document Supply CentreGBUnited Kingdo

Review of biological mechanisms for application to instrument design, volume V

Review of biological photoreception, mechanoreception, chemoreception, and electrosensing mechanisms for application to instrument desig

Research on gravitational mass sensors Quarterly progress report no. 1, 15 Oct. 1964 - 14 Jan. 1965

Lunar orbiter and deep space probe gravitational sensor for determining mass distribution of moon and asteroid