Waveforms, A History of Early Oscillography

Phillips, Vivian J.

ISBN 10: 0852742746 / ISBN 13: 9780852742747

Editore: Adam Hilger, 1987

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VG condition book with dust jacket. DJ is clean, has fresh colours and has little wear to edges. Book has clean and bright contents.

Codice articolo 9999-9992226315

Dati bibliografici

• Titolo: Waveforms, A History of Early Oscillography
• Editore: Adam Hilger
• Data di pubblicazione: 1987
• Lingua: Inglese
• ISBN 10: 0852742746
• ISBN 13: 9780852742747
• Rilegatura: Rilegato
• Condizione: Good

Descrizione articolo

Riassunto

The cathode ray oscilloscope is an instrument for the measurement of variation of electric voltage and current. It has taken 90 years to reach its present level of sophistication. Such has been the cathode ray tube's success that many scientists and engineers are largely unaware of the earlier methods which preceded it. In this book, Phillips recalls the early methods of the examination of electrical waveforms, illustrating the ingenuity and persistence which was brought to bear on the problem andlooks at some of the apparatus - sometimes crude, but often quite sophisticated and beautifully engineered - which was developed and used during the nineteenth century. This book will be of interest to physicists and electrical engineers with an interest in the history of science, historians of science, engineering, instrumentation, television and radio.

Contenuti

Introduction. Mirrors, flames and membranes: Observations of sparks through rotating mirrors. Acoustic measurements. The phonograph. Contact methods: The stroboscope. Simple manually set contacts. Semi automatic and fully automatic contact systems and other modificatiosn. Rotating contacts used for other purposes. The observation of repeated transient waveforms. Moving-coil oscillographs: Use of the moving-coil galvanometer. Theoretical considertions. Blondel, Duddell and the bifilar oscillograph. Bifilar instruments constructed by other experimenters. Single-wire instruments. Moving-iron oscillographs and compensated instruments: Moving-iron oscillographs. Externally compensated instruments. Miscellaneous methods: Chemical methods. Optical systems using polarised light. The mercury jet. Electrostatic and hot-wire oscillographs. The electrocapillary method. Cathode rays: The first steps. Improvements.