41. Infrasonic stimuli are hard to produce and are often transmitted through a filter that attenuates higher frequency components . 42. How would I interpret or handle the data so I could determine the frequency components of the signal? 43. Any nonlinearity would potentially result in the output signal containing frequency components not present in the input signal. 44. Zernike phase-contrast microscopy introduces a phase shift to the low spatial frequency components of the partially reflective mirror. 45. Of these, the most basic are the monochromatic plane waves, in which only one frequency component is present. 46. The masker does not need to have the frequency components of the original signal for masking to happen. 47. In addition to the size and robustness of the oscillator components, the lower frequency components were likewise robust. 48. The individual frequency components of the transmitted light are spatially separated using a simple spectrometer, usually a diffraction grating. 49. Linear distortion does not introduce new frequency components to a signal but does alter the balance of existing ones. 50. Often the Fourier transform is converted to the power spectrum, which is the magnitude of each frequency component squared.
