Abstract: This paper provides the brief background of precision satellite altimetry. A description of satellite altimetry concepts and instrumentation is presented. The parameters measured, supporting data and techniques, as well as physical limitations, are discussed. In addition, results are shown and a variety of applications are emphasized.

Abstract: A modified linear sweep technique is described which allows one to rapidly determine the carrier generation rate versus semiconductor depletion width dependence exhibited by deeply depleted MOS-C structures. Although requiring more sophisticated instrumentation, the modified procedure is more flexible, more accurate, and less time-consuming than the original technique.

Abstract: Data and engine parts on in-service JT3D and JT8D engines were analyzed and documented relative to engine deterioration. It is concluded that the fan-compressor system of these engines contributes to the long term engine deterioration. An engine test and instrumentation plan was formulated for a proposed follow-on program. The goal of this program is to verify the above conclusion and to attempt to identify more precisely which components of the fan-compressor system are at fault.

Abstract: A set of hardware modules collectively called the research device coupler (RDC) has been designed to bring instrumentation interfacing capability to scientists using interactive terminal-oriented systems. The scientist familiar with APL, Fortran, PL/1, or Basic may now exercise the digital and analog I/O facilities of the RDC using these high-level languages. The RDC is an ensemble of modular I/O units with built-in functions which act with, or as, a terminal. Its primary distinction is that it takes advantage of existing interactive systems without need for change either to the host system hardware or software or to the user's terminal

Abstract: We have applied a comprehensive theory of photometric errors to the design and evaluation of an inexpensive stabilized photometer. The photometer is described in terms of a group of modules, the characteristics of which are described in terms of their effect on specific error coefficients. Procedures described in this paper show how the principles described earlier [ Clin. Chem. 20, 1028 (1974)] can be used to optimize the design of new instrumentation or to evaluate the performance of existing instrumentation. Chemical data are included to verify the agreement between predicted and experimental results

Abstract: Continuing advances and improvements in gas analyzers are accompanying their increased use in air pollution and industrial process control applications. New analytical instrumentation applies recent innovations in laser technology, sampling technqiues, computer processing, and Fourier transform methods. Also covered are state-of-the-art chromatographic and spectroscopic gas analysis devices currently available for air-quality and combustion-monitoring problems, including principles of operation, recent improvements, limitations, and guidelines.

Abstract: One afternoon some 8 years ago a colleague rushed excitedly into my laboratory. The reason for his excitement was an article entitled \"Laser-pumped stimulated emission from organic dyes\" by Sorokin and co-workers (1). Even at that time, it was clear that here was the potential for tunable laser radiation across the visible region of the spectrum. This potential for tunability was shortly thereafter demonstrated by Soffer and McFarland (2). To be sure, tunable lasers were known at that time. Pressure tuned diode lasers had been reported which could be tuned over a considerable portion of the infrared (3), but these were not simple laboratory devices and were very low in power output. The Zeeman effect had been used to tune atomic vapor lasers (4), but the amount of tunability was limited to only about a part in 106 in frequency. The dye laser promised broad tunability and high power in a reasonably simple laboratory device. I will admit that the developments in tunable coherent radiation sources since that afternoon have far exceeded any expectations I might have had at the time. It is my belief that the next 20 years will see a dramatic development of tunable coherent light sources and of various optical devices associated with them. Soon light will be no more difficult to work with than lower-frequency electromagnetic radiation (for instance, radio frequencies). These sources and devices will be important constituents in instrumentation for communications, spectroscopy, and spectrochemical analySiS. In this article I will review briefly some principles underlying the production of tunable coherent radiation. I will describe some specific techniques which today appear suitable for development in scientific

Abstract: The optical technique used in the speech spectrogram generator described here permits the analysis of signals having frequency components within the ultrasonic or very-low-frequency ranges, and the system is capable of examining large amounts of data continuously throughout the processing.

Abstract: This paper reports technical findings and recommendations resulting from a joint SCE/TRW study of Instrumentation and Control alternatives for use in future EHV substations on the Edison system. It contains analyses and design criteria that should be followed when a digital, computer-oriented, instrumentation and control system is contemplated as the primary instrumentation and control system in an EHV substation. Attention is also given to the electromagnetic environment found in EHV substations.

Abstract: An electronic system for process instrumentation and control or a power supply system with a high reliability. In a plurality of instrumentation and control systems each including a plurality of measuring instruments and apparatus connected to a common DC power supply, a DC voltage is supplied to the plurality of instruments and apparatus from the DC power supply, through a current limiter and an apparatus having a DC-wise insulating function which are provided for each of the instrumentation and control systems.

Abstract: A standardized instrumentation system for computer automated measurement and control (CAMAC) is gaining wide international acceptance for industrial and laboratory applications. The system features a fully specified dataway together with modular functional units that are completely compatible with each other and that are available from diverse sources. The system is nonproprietary and can be freely used without license or restriction of any, kind.

Abstract: A software measurement tool designed for the users of PRIME, an interactive system being developed, is presented. The tool, called SMT, allows its user to instrument a program, modify a pre-existing instrumentation and specify how the collected data are to be reduced by typing in a few simple commands. The user can also write his own measurement routines, which specify the actions to be taken at event detection time, and submit them to the SMT; after checking their correctness, the SMT deals with them as with its built-in, standard measurement routines. The design goals of a general-purpose tool like the SMT are discussed, and the prototype version of the tool, which has been implemented, is described from the two distinct viewpoints of a user and of a measurement-tool designer. An example of the application of the prototype to a measurement problem is illustrated, the reasons why not all of the design goals have been achieved in the implementation of the prototype are reviewed, and some of the foreseeable extensions of the SMT are described.