The purpose of this book to encourage coaxial techniques within the formalism of coaxial networks, to show that these techniques have the great advantage of obtaining accurate and certain results, and to show how to implement each concept with practical, constructable apparatus. The bridge networks with which we are concerned will therefore consist of impedances provided with, and defined in terms of, terminal-pair coaxial terminals and will be connected with conductor-pair coaxial cables. Equalising the current in the inner conductors and screening outer conductors of cables so that the currents are equal and opposite will ensure that the cables have negligible external fields (see section 1.1.1), and therefore, the cables do not interact with each other so that their routing is immaterial. The network will also have little response to external interference.

Chapter Contents:

• 4.1 Improvements in defining what is to be observed or measured
• 4.1.1 Ratio devices
• 4.1.2 Impedance standards
• 4.1.3 Formal representation of circuit diagrams and components

Inspec keywords: coaxial cables; conductors (electric); electric impedance measurement

Other keywords: impedance measurement; coaxial electrical circuits; conductor-pair coaxial cables; terminal-pair coaxial terminals; interference-free measurements; bridge networks; screening outer conductors

Subjects: Impedance and admittance measurement