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Satellite instrumentation analysis

The character and the degree of automation in chemical control may have been covered in the above treatment of semi-automatic or completely automatic, and of discontinuous or continuous analysis, but something more should be said about the means by which automation proper has been performed in recent times. Whereas in the past automated analysis involved the use of merely, mechanical robots, to-day s automation is preferably based on computerization in a way which can best be explained with a few specific examples. Adjustment knobs have been increasingly replaced with push-buttons that activate an enclosed fully dedicated microcomputer or microprocessor in line with the measuring instrument the term microcomputer is applicable if, apart from the microprocessor as the central processing unit (CPU), it contains additional, albeit limited, memory (e.g., 4K), control logics and input and output lines, by means of which it can act as satellite of a larger computer system (e.g., in laboratory computerization) if not enclosed, the microcomputer is called on-line. [Pg.327]

Roche, A.E., P.B Fomey, J.B. Kumer, L.G. Naes and T.C. Nast (1982) Performance analysis for the cryogenic etalon spectrometer on the upper atmospheric research satellite. Society of Photo-Optical Instrumentation and Engineering Proceedings 3S4. 46-S4. [Pg.329]

Thus, at each iteration of (5.8), system (5.14) should be solved. The rate of convergence of this procedure depends on the correct choice of initial conditions. The method of differential approximation refers to universal approaches in the function approximation theory to the analysis of dynamic systems. Under remote monitoring conditions, the use of this method can be justified by allowing aircraft and satellite measurements to be spaced in time with respect to the objects to be monitored and, hence, in processing the readings from measuring instruments it is necessary to take into account possible changes in the object between moments of measurement. [Pg.307]

Nevertheless, despite these limitations, it will be evident from the succeeding chapters that great advances have already been made even though most of the research spans only a few decades. Modern techniques and instrumentation such as satellite imagery, scanning electron microscopy. X-ray analysis, electron and ion probes and computer assisted analysis are providing... [Pg.21]

Figure 18 shows the overall process of PCM telemetry. The data from a rocket-, balloon-, or satellite-borne physical instrument are edited in a PCM frame pattern with an encoder and then transmitted by the PCM telemetry to the ground. The PCM data are decoded and acquired in a computer system. In data analysis, a computer system is also used. Although data acquisition and data... [Pg.317]

The assignment of the peaks, which, as described above, may be XPS transitions or their associated Auger peaks, is accomplished with the aid of a handbook or computer database of peak positions. All elements of the periodic table, with the exception of hydrogen, can be detected and XPS is able to analyze light elements with ease, a feature that makes it particularly attractive for the analysis of organic polymers. Minor X-ray satellites will be present if an achromatic X-ray source has been employed and arise from photoelectron transitions excited by the minor components (Kc(3,4 and K ) of such X-radiation. In Figure 2, the major photoelectron peaks (fluorine 1 s and carbon 1 s) are a result of A1 Kcd 2 induced photoemission. Features labeled Ka3 4 and arise from fluorine 1 s electrons ejected by the A1 Ka3,4 and A1 components of the radiation, respectively. Instruments are often equipped with a monochromator that remove the Kc(3 4 and satellite lines from the beam of X-rays. [Pg.4597]

See also Atmospheric Sciences Avionics and Aircraft Instrumentation Communications Communications Satellite Technology Maps and Mapping Meteorology Probability and Statistics Risk Analysis and Management Vertical Takeoff and Landing Aircraft. [Pg.45]

Although chemical and isotopic analysis by remote sensing using either Earth- or satellite-based instruments play an important role in some cosmochemical studies, laboratory measurements on real samples remain the predominant means of data acquisition. In cosmochemistry, extraterrestrial materials are the most... [Pg.276]

ABSTRACT This paper described the general process of Accelerated Life Test and its limits in use of satellite electronic instrument briefly analysis several accelerated life test methods based on failure rate, empirical formula, accelerated degradation and transformation proposes accelerated life test method based on activation energy estimate forecast, provided a new way for ALT of satellite electronic Instrument, and validated its applicability. Subject results promote the use of other satellite electronic instrument. [Pg.1817]


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