Figures 8(c), 8(d), 8(e), and 8(f) show the "bad" pulses which are due to electromagnetic disturbances and microphonics
. One can see the difference just by naked eye.
The device was adapted from strain-sensitive "microphonic
cable technology that is used on outdoor perimeter fencing to the specialized requirements of detecting impacts to metal, wood, or masonry materials," he added.
Tubes can be microphonic
, that is, they can pick up and amplify vibrations.
TH-AM-OF5-1: Electrical Noise Generated from the Microphonic
Effect in Capacitors
Senstar-Stellar's product line includes buried cable sensors, microphonic
fence sensors, electrostatic field sensors, microwave sensors, video intrusion detection sensors, infrared LED illuminators and system integration tools.
He conceived both the entire orchestra and a smaller group of instruments as two synthesized string basses, which we might call a macrophonic and a microphonic
Nevertheless, reports on accuracy of automated home blood pressure monitors are contradictory.[3,5,23-25] The variability between these devices and the standard mercury column sphygmomanometer is attributed to measurement of different circulatory phenomena by different recording techniques. Oscillometry, the technique employed by the F-88, is claimed to be more accurate than the auscultative method, especially in clinical situations when blood flow is diminished. There are no definitive studies comparing oscillometry with other techniques, however, such as ultrasonic and microphonic
An observational study  found that the Cochlear Microphonic
(CM) increased normally to 20 mm insertion of a lateral wall electrode however dropped suddenly when inserting beyond 20 mm.
Defined by the Committee on National Security Systems (CNSS), the intent of the NTSWG type-acceptance program is for all telephones used in sensitive discussion areas to be physically incapable of producing any microphonic
audio on any wires leaving the instrument while it is in the idle state.
However, important contributions to the detector noise come from vibrations (through the induced thermal dissipations) and are often referred to as microphonic