Electrical Measurements at Wave Lengths Less than Two Meters

Nergaard, L.S.

doi:10.1109/jrproc.1936.228470

Cited by 6 publications

(1 citation statement)

References 6 publications

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“…This could occur, for example, when operation takes place over a negative resistance portion of thermistor characteristics. (5) (4) Single bolometer, equal-arm bridges…”

Section: Be Smentioning

confidence: 99%

High-frequency voltage measurements

Selby¹

1948

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This report on r-f measurements contains material written for inclusion in a Handbook of Physical Measurements to be published by the National Bureau of Stand¬ ards. The objectives ares (l) to present an up-to-date conspectus of fundamental techniques used in scientific research, laboratory and commercial measurements as well as their relative merits, (2) to cover all principles and methods that have met with any degree of success but not necessarily to compile all available material in encyclopedical form, (3) to meet the need of the professional worker and graduate student somewhat more comprehensively than the presently available handbooks do, A considerable amount of the material presented is based on work done at this Bureau, Bibliography is omitted because the references given leading in turn to further references and bibliography are considered adequate.

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“…This could occur, for example, when operation takes place over a negative resistance portion of thermistor characteristics. (5) (4) Single bolometer, equal-arm bridges…”

Section: Be Smentioning

confidence: 99%

High-frequency voltage measurements

Selby¹

1948

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High Frequency Energy Losses in Solutions Containing Macromolecules

Conner

1941

The Journal of Chemical Physics

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There is described a quantitative thermal method for measuring the loss factor of solutions containing polar molecules. By making use of the Debye dipole theory for both parts of the complex dielectric constant, it is found that normal lignin is fairly homogeneous and has a molecular weight of approximately 3900 and a shape factor of 8. The ω-hydroxydecanoic acid polymers show internal rotation of the polar groups in solution, whereas methyl methacrylate linear polymers appear to have less, but still appreciable, internal group motions.

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On Electronic Voltage Stabilizers

Hunt

Hickman

1939

Review of Scientific Instruments

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Voltage stabilizing circuits employing thermionic tubes can be classified into four groups, according to their derivation from (1) the transconductance bridge, (2) the amplification factor bridge, (3) the simple degenerative amplifier, and (4) combination circuits involving two or more of the foregoing classes or utilizing amplified control voltages. It is shown that the variational performance of a stabilizer is characterized by an internal output resistance and a stabilization ratio. The effect of source resistance on these performance parameters is discussed in the general case and expressions for these parameters are evaluated for ten stabilizer circuits, seven of which are original with the authors. All but two of the circuits can be adjusted to yield perfect stabilization and four have also a very low internal resistance. Glow discharge tubes are discussed as bias battery substitutes. A simple a.c. bridge technique which is convenient for the experimental determination of stabilizer performance under normal load conditions is described in an appendix.

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Electrical Measurements at Wave Lengths Less than Two Meters

Cited by 6 publications

References 6 publications

High-frequency voltage measurements

High-frequency voltage measurements

High Frequency Energy Losses in Solutions Containing Macromolecules

On Electronic Voltage Stabilizers

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