Performance enhancement of the Surrey 400 keV ion implanter has been successfully implemented by upgrading the ion optics and installing a computerised telemetry system. Ion optics improvements include redesigning the mass analyser system and designing and installing a double electrostatic quadrupole lens. Telemetry enhancements entailed designing and installing an "intelligent" multiplexer system within the high voltage terminal and connecting this system to computers at earth potential using only two (Down- and Up-link) fibre optic lines. This new system solved the problem of frequent failures caused by current discharges. Other telemetry improvements included: upgrading all data acquisition and conversion head units especially those monitoring the critical parameters; standardising the design of voltage-to-frequency (V/F) head units and installing these as boxed modules; and, increasing the number of telemetry channels (from 15 to 22) to monitor the (original 15 plus the seven newly developed) sub-systems within the high voltage terminal. Upgrading of the machine optics and electronics not only remedied several of the shortcomings of the original machine, but also worked to produce an equipment with better operational characteristics. Currently, the implanter is capable of resolving ion species with masses up to 241 amu, which enables selected isotopes from across the periodic table to be ion implanted. Ray tracing simulations show that the machine now has a much-improved beam transport efficiency with a smaller and more symmetric beam spot at the target. Experiments using 100 keV Ar+ showed that the beam spot is 5mm x 3mm as against 35mm x 20mm in the old system. At the same time, the implanter has a reliable telemetry system which efficiently links together all of its sub-systems within the high voltage terminal. Performance measurements showed that there has been a significant improvement in channel accuracies (from 1% to at least 0.3%) as well as an increase in its measurement speed, being at least five times faster. The best indicator of implanter reliability, however, is that since the commissioning of both optics and electronics improvements in 1988, there has been no reported telemetry breakdown. This not only provides substantial savings in machine maintenance and repairs, but, also increased the productivity of the implanter. These improvements in hardware have made the machine more amenable to and worthy of computer control. To ensure tighter control and to enhance the reliability of the implanter, a distributed computer control system for the automatic control of the whole implanter has also been designed. Within this control configuration, three types of applications software have been developed, tested and subsequently implemented to control the Beam Generation and Analysis sub-systems. These Assembly code programmes provide the operator with real-time information which enable him to conduct fault diagnosis, parameter calibration, and, on a day to day basis, perform the setting up and control of the implanter. In the future, the software can be expanded and integrated into the final algorithm needed to implement the closed-loop computer control of the implanter. Full automation will further enhance the implanter's performance and reliability. In summary, major improvements have been made to the 400 kV high current implanter at the University of Surrey. This has greatly enhanced the purity of the beam at the target and the reliability of the machine. As a result, this project serves to enhance the quality of research in the field of ion implantation technology within the Department. It also contributes to ongoing research in the development of implanter telemetry and control systems.

ITC/USA 2005 Conference Proceedings / The Forty-First Annual International Telemetering Conference and Technical Exhibition / October 24-27, 2005 / Riviera Hotel & Convention Center, Las Vegas, Nevada / Experimental science payloads vary greatly in design for the purpose of performing specialized tasks. As such, their supporting control, data acquisition and telemetry subsystems are often expensive custom designed units with specific abilities, thus limiting reuse. This paper presents a payload control, data acquisition and telemetry system capable of providing a range of functionality to science payloads as a consequence of its accommodating architecture, programmability, and physical modular design. Details of the system and its capabilities are presented followed by an actual configuration of the system as the backbone of a micro-electro-mechanical-systems technology demonstration payload designed for suborbital flight.

International Telemetering Conference Proceedings / October 25-28, 1993 / Riviera Hotel and Convention Center, Las Vegas, Nevada / Telemetry as a research interest began to appear in the early days of this century. Since then it has gained great progress with its application fields growing all the time. This paper reviews briefly the history of telemetry introduces its state-of-the-art technology. The research activities and technological levels in this field inside China are included.

International Telemetering Conference Proceedings / October 17-20, 1994 / Town & Country Hotel and Conference Center, San Diego, California / GPS is required in today's vehicle tracking and navigation applications. The Navigation Satellite Timing and Ranging (NAVSTAR GPS) is an all-weather. Radio based, satellite navigation system that enables users to accurately determine 3-dimensional position, velocity and time. So it is an intelligent sensor intended to be used as a component in a system for public service.

ITC/USA 2010 Conference Proceedings / The Forty-Sixth Annual International Telemetering Conference and Technical Exhibition / October 25-28, 2010 / Town and Country Resort & Convention Center, San Diego, California / This paper describes a telemetry system used in the Missouri S&T solar car, which competed in the American Solar Challenge. The system monitors parameters of a number of the on-board electronic and mechanical systems, and also the activities of the vehicle driver. This data is transmitted to a lead vehicle, where the support team analyzes the performance in real-time to optimize the vehicle's performance. In previous vehicles the data was displayed using a LabVIEW based user interface. In this work we will describe a custom software solution, which provides the team with additional flexibility to display and analyze the data.

ITC/USA 2008 Conference Proceedings / The Forty-Fourth Annual International Telemetering Conference and Technical Exhibition / October 27-30, 2008 / Town and Country Resort & Convention Center, San Diego, California / The integrated Network Enhanced Telemetry (iNET) project established a test article standards working group to define open standards for network components and interfaces for test articles in the aeronautical test environment. Its aim is to utilize the growth of Internet technologies for telemetry networks and ensure interoperability among network devices. This paper describes the technology background and the current technology trades of an IP-based network paradigm used in producing standards for test article networks. Specifically, the paper will include descriptions of selected network technologies as applied to test data and time distribution within test articles.

International Telemetering Conference Proceedings / October 25-28, 1999 / Riviera Hotel and Convention Center, Las Vegas, Nevada / The telemetry system has been used in many important fields. Generally speaking, it’s easy to judge whether the system operation is successful or not. But when it is running normally, it is not easy to evaluate the medium state (between success and fail) of the telemetry system, likes a man’s spirit state. In this paper, a method with fuzzy theory is brought forward to evaluate the “Spirit State” of the telemetry system. This method can be used to evaluate the telemetry system, or to evaluate other important system states. By this method, the estimation to the mission will be very exact and reliable.

International Telemetering Conference Proceedings / October 17-20, 1988 / Riviera Hotel, Las Vegas, Nevada / The evolution of telemetry ground station systems over the past twenty years has tracked the evolution of the mini-computer industry during that same time period. As the various mini-computer vendors introduced systems offering ever increasing compute power, and ever increasing capabilities to support multiple simultaneous users, the high end of the telemetry ground station systems offered by the industry evolved from single stream, single user, raw data systems to multi-user, multiple stream systems supporting real-time data processing and display functions from a single CPU or, in some cases, a closely coupled set of CPUs. In more recent years we have seen the maturation of networking and clustering concepts within the digital computer industry to a point where such systems coupled with current workstation technology, now permit the development of large telemetry ground station systems which accommodate large numbers of simultaneous users, each with his or her own dedicated computing resources. This paper discusses, at a hardware block diagram and software functional level, the architecture of such a distributed system.

International Telemetering Conference Proceedings / November 04-07, 1991 / Riviera Hotel and Convention Center, Las Vegas, Nevada / Based on the theory of orthogonality, two orthogonal multiplex systems called frequency division multiplexing(FDM) and time division multiplexing(TDM) have long been developed. Therefore, many people tend to think that these two systems represent the ONLY two multiplexing methods that satisfy the orthogonal condition. However, after years of research, we've discovered a new kind of orthogonal functions called Bridge functions. The Bridge functions have the every promise of being the basis for constructing an entirely new kind of telemetry system, which has been named as sequency division multiplexing(SDM). Since the Bridge functions are the mathematical basis of the new telemetry system, we will give a summary of the Bridge functions at first. We have successfully constructed an experimental prototype called BAM-FM system in our laboratory. The main ideas, block diagram, operational principles, and technical problems are discussed in this paper. All our work has proved that SDM has not only research interests, but also practical value.

International Telemetering Conference Proceedings / November 04-07, 1991 / Riviera Hotel and Convention Center, Las Vegas, Nevada / The Multi-Stream Data-Driven Telemetry System (MSDDTS) is a new generation system in China developed by Beijing Research Institute of Telemetry (BRIT) for high bit rate, multi-stream data acquisition, processing and display. Features of the MSDDTS include: .Up to 4 data streams; .Data driven architecture; .Multi-processor for parallel processing; .Modular, Configurable, expandable and programmable; .Stand-along capability; .And, external control by host computer. This paper addresses three very important aspects of the MSDDTS. First, the system architecture is discussed. Second, three basic models of the system configuration are described. The third shows the future development of the system.