beat frequency


Also found in: Acronyms.

beat frequency

[′bēt ‚frē·kwən·sē]
(electronics)
The frequency of a signal equal to the difference in frequencies of two signals which produce the signal when they are combined in a nonlinear circuit.

beat frequency

beat frequencyclick for a larger image
The periodic variation in amplitude of an oscillation resulting from the superimposition (or mixing) of two oscillations of differing frequencies. It is equal to the difference between the two frequencies.
References in periodicals archive ?
RPL554 also increased cilia beat frequency in primary human bronchial epithelial cells.
That is quite a lot for hummingbirds because they hardly change their wing beat frequency," Sapir said.
CEO] (typically 20 MHz, or 40 MHz after frequency doubling to the visible) and the beat frequency [f.
One of the ways to find the beat frequency is to use a photodetector in a point of the region of interference of the two waves.
Measurements from the graph were used to determine the beat frequency.
This enables one to obtain the maximum resolution of details, (ii) for large deformation intervals, the beat frequency or beat period (inverse creep rate) was measured by a timer and plotted as a function of strain.
Denufosol is designed to enhance airway hydration and mucociliary clearance by increasing chloride secretion, inhibiting sodium absorption and increasing ciliary beat frequency.
8,977,363 includes multiple system claims for delivering high frequency stimulation to the spinal cord with base frequencies between 500 Hz to 20 kHz while generating a directionally controllable beat frequency between 0 - 250 Hz.
Unique auto-mastering for master/slave operation - even if a master were to fail, the S1A and SC-100 can eliminate beat frequency effects in remaining units
Along with beat frequency, these kinematic characteristics reflect the biological status of sperm, a critical indicator of the fertilization ability of a particular sperm cell.
The effect of three compounds on beat frequency, survival rate, myocardial enzymes of myocardial cells (Xu et al.
Denufosol works by increasing chloride secretion, inhibiting sodium absorption and increasing the beat frequency of the tiny hairs, or "cilia," lining the airways move to clear mucus.