Abstract: Results have shown that the most practical approach to locating cable faults consists of a three-step procedure known as the System Approach. By this process various test instruments are employed to first characterize a fault according to its electrical parameters; to next localize the fault to an approximate location by measurements from a terminal; and then to finally locate the fault within that locality by physically tracing for its effect along the cable route. Success is measured in terms of the minimum of time to restore service which in turn is usually a function of the selection and performance of available instrumentation. All of the recognized methods and instruments that can be used in each step of the System Approach are described giving typical features along with the advantages and disadvantages of each method. This information should enable responsible engineers to evaluate the practicality of their own resources for the intended purpose.

Abstract: : The program objective is: To conduct applied research using analytical and experimental investigations for identifying, defining and validating advanced concepts which may be applied to future, improved Naval and Army aircraft instrumentation systems. This includes sensing elements, data processors, displays, controls and man/machine interfaces for fixed and rotary wing aircraft for all flgiht regimes. The following topics are treated in the report: Psychophysical studies, modulation sensitivity function; cognitive demand studies; and analysis of display mechanization performance criteria.

Abstract: This report presents the results of a survey of instrumentation for monitoring sulfur dioxide. Results give descriptions of the physical and operating characteristics of available instruments, critical comparisons among instrumentation methods, and recommendations for development of new instrumentation. The types of equipment discussed include conductimetric analyzers, colorimetric analyzers, dispersive absorption spectrometers, and condensation formation analyzers. Two tables present data on ambient air monitors and SO/sub 2/ stationary source monitors.

Abstract: The paper discusses currently available procedures and instrumentation systems for the measurement of spindle rotation accuracy. After describing the operating principles of measuring systems which have been previously proposed and discussing their merits and limitations, a new system is described which offers advantages in terms of simplicity of use and of economy of components.

Abstract: It was a good idea to write this book, and some parts of it, for example the introduction to chapter 10 and the discussion of degrees of freedom, is first class. Unfortunately, it is marred by bad proof-reading, the careless use of English, and some statistical mistakes. If the book is to be used by someone working on his own it is particularly necessary that there shall be no misprints to confuse him (7.26, 8.7, 10.21, 11.19, 12.50 need correcting) and that the questions and remarks should be intelligible (what are we to make of 10.60, or of the statement in 11.47 that 'Clothes vary in precision' ?). However, it is in the use of statistical terminology that he is most likely to be muddled; for example, a random sample is not unbiased and precise, it gives unbiased estimates of the mean to which a measure of precision can be attached. This is made clear in the summary of chapter 11 but not in 10.47, 11.32, and 11.57. The expressions in 14.47 and 14.51 give points, not intervals, they are the 950% confidence limits. The statement that p represents an amount of evidence, in 15.21, is very questionable indeed. The statistical treatment is usually all right except for the chapter on correlation. Some misinformation is implied about the normal distribution in chapter 7 the range seems to be treated as having no connection with the variance, and the ranges suggested in 7.33 and 7.40 are improbably large. It should be mentioned that data near an absolute zero, such as reaction times, will not as a rule follow a normal distribution. It should also be noted that the sort of confidence intervals described in chapter 14 can be used only in circumstances where one would use a two-tailed test. More emphasis should be given to the fact that, if a one-tailed chi-squared test is used, the data must be checked to see that they agree in direction with the predicted result. It would be desirable to say more about the nature of an 'identical' control group (see 11.52). The worst difficulties occur in chapter 8. Why should the word 'association' mean more to the naive reader than 'correlation'? What is the point of talking about quadrants when there is no information about how to draw the axes? It is very difficult to compare two scatter diagrams by eye if either the variances are different or the number of points is not approximately the same. Will the reader understand this, especially after doing 8.19? This chapter undoubtedly needs rewriting. As it stands, this book would be useful as a course book for medical students if the course were taught by a competent statistician. It would be worth improving it so that it could be used as a programmed text by individuals wishing to learn on their own. VIOLET CANE

Abstract: Computer designers and users have felt the need for monitoring the behavior of their systems since the earliest days of the computer era. However, only very few and recent systems have been adequately instrumented by their designers during the design stage (see for example reference 1). This situation has led to the development of hardware and software measurement tools having the common property of requiring relatively minor or no modifications of the system to be monitored. The applicability of these tools in certain measurement problems is somewhat limited, since on one hand the system was not specifically designed to be measurable, and on the other hand the tool was designed to be applicable to a class of systems, configurations, or versions, and its measurement power with respect to a particular system may have been sacrificed to its generality.

Abstract: Instrumentation and software of a computer-controlled system for analytical chemistry is described, which will: ( a ) automatically carry out any one of a large number of tests, ( b ) utilize the results of that test in conjunction with data derived from other sources as a basis to proceed to select and perform another analysis, and ( c ) continue in this mode by a branching sequence until the analytical potential of the specimen is exhausted. The system is programmable with user control languages that require no programming experience. The external equipment controlled by the computer in a time-sharing mode includes a sampler, a digital pipet, a digital valve, a ratemeter, and a dual-beam spectrophotometer with a programmable wavelength drive.

Abstract: A multidetector system for regional pulmonary function evaluations using xenon-133 is described. Sixteen NaI(Tl) detectors (eight collinear pairs) are employed and counting data is accumulated into a 1600-word magnetic core memory via a high speed, buffered, data acquisition system. The data are read out from the magnetic core memory to digital magnetic tape for processing and analysis using a laboratory computer system. A general description of the experimental techniques of radiospirometry and of the methods for data analysis is given.

Abstract: The paper outlines the uses to which microwaves can be profitably applied in steel and other heavy metal industries. Various practical installations are described in detail with special emphasis on the many industrial problems encountered in the introduction of these into works environments. Details of the state of commercial exploitation and directions of future development are given.

Abstract: To obtain parametric data characterizing an IC processing schedule, a pattern of specialized test devices was used in conjunction with a powerful computer-controlled testing and data-reduction system A test programming system which allows looping and branching was used to control instrumentation having capacitance measurement capability in addition to the usual voltage and current instrumentation The test devices (MOS capacitor, transistor, and various other types) were tested automatically using the system Computer-based data logging, analysis, and display generation techniques were necessary so the large bulk of data taken could be-reduced to physically meaningful parameters whose significance can be readily comprehended In addition to the usual statistical analysis methods, a perspective three-dimensional plot showing parameter values as a function of position in the wafer plane was found most valuable This data generation system is felt to be a necessary step to providing a complete characterization of both the capabilities and limitations of an IC fabrication scheme, which is vital to both the circuit designer and the line process engineer