Sentences with heterodyne
het·er·o·dyne
H h - This causes the heterodyne beat intensity to oscillate at the corresponding Dopplershifted frequency.
- In heterodyne SLDV, a scanned laser beam incident on the vibrating test surface undergoes a Doppler radial frequency shift proportional to the instantaneous velocity.
- When the two frequencies were mixed, or heterodyned, the difference between them resulted in a third frequency; it was this so-called ‘difference tone’ that was amplified and channeled to a loudspeaker.
- We can modulate the detector at the same frequency as the excitation for homodyne detection - or at a slightly different frequency for heterodyne detection.
- The system achieves this by measuring the target velocity of the cylinder carrier from optical phase shift, using an optical heterodyne interferometer to exploit the temporal, rather than spatial, coherence of the laser.
- In the finished models of the theremin, volume levels were controlled by means of a comparable heterodyne effect triggered by the player's other hand.