Results 251 to 260 of about 452,637 (291)

Very low frequency quadrature oscillator

Review of Scientific Instruments, 2000
We propose a low-cost, practical, quadrature oscillator with a period, Tq, which may be very long (Tq⩾1 s). We illustrate this design with an oscillator that produces two quadrature sinusoidal waves with a 1 s period. This design can be modified to provide signals of any shape by adjusting the value of one or more resistors.
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Amplitude-stabilized transistorized low frequency oscillator†

International Journal of Electronics, 1973
Abstract A stable oscillator has been developed with an active frequency-selective circuit using a Wien network, adjusted below the threshold of regeneration, by providing amplitude-limited aperiodic positive feedback through a parallel path. With this method the amplitude of oscillation remains stable and can be controlled continuously while the ...
S. K. DAS, GITA DAS
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Demonstration of Low-Frequency Electrical Oscillations

American Journal of Physics, 1972
An underdamped LCR circuit has been constructed which has an oscillatory period in the region of 0.5 to 5 sec. The current and emf in the circuit are measured by means of a galvanometer. The time behavior of the circuit is studied by means of a light beam chopper and sampling technique.
Bal Krishna Sharma, Babulal Saraf
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Low-frequency oscillation

Nature, 1994
Michael E. Schlesinger, Navin Ramankutty
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Low-frequency, low-distortion digital quadrature oscillator

Journal of Physics E: Scientific Instruments, 1989
Digital recursive and non-recursive filtering techniques have both been exploited to build a low-frequency (0.5-50 Hz), low-distortion digital quadrature oscillator. This generator shows an amplitude constant to within 0.3% over the frequency range, and the quadrature phase error is within +or-0.05 degrees .
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Ultra-Low-Frequency, Three-Phase Oscillator

Proceedings of the IRE, 1954
This paper describes the design of a three-phase oscillator covering the range from 0.01 to 1,000 cycles per second. The problems peculiar to this frequency range, and their solutions, are discussed. Certain advantages inherent in three-phase operation are explained.
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Low Frequency Oscillators

2021
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Low-frequency Oscillators

2018
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Low-Frequency Oscillator

Journal of Scientific Instruments, 1949
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γ-band electroencephalographic oscillations in a patient with somatic hallucinations

Lancet, The, 1998
Torsten Baldeweg
exaly