منابع مشابه
Flow sensing by pinniped whiskers.
Beside their haptic function, vibrissae of harbour seals (Phocidae) and California sea lions (Otariidae) both represent highly sensitive hydrodynamic receptor systems, although their vibrissal hair shafts differ considerably in structure. To quantify the sensory performance of both hair types, isolated single whiskers were used to measure vortex shedding frequencies produced in the wake of a cy...
متن کاملActive touch sensing: finger tips, whiskers, and antennae
Active touch can be described as the control of the position and movement of tactile sensing systems by reaching out and exploring—sensing by “touching” as opposed to being touched. The active nature of these movements entails precise control of the sensory apparatus, which is task-specific and maximizes sensory information from the environment. This collection brings together a group of articl...
متن کاملBacteriophage T4 whiskers: a rudimentary environment-sensing device.
The 400 A filaments or "whiskers," which extend outward from the collar region of the phage, control retraction and extension of the tail fibers in response to certain environmental conditions. The tail fibers of normal phage retract in the absence of a required adsorption cofactor, at low pH, at low ionic strength, at low temperature, and at high concentrations of polyethylene glycol. The tail...
متن کاملEffect of Angle on Flow-Induced Vibrations of Pinniped Vibrissae
Two types of vibrissal surface structures, undulated and smooth, exist among pinnipeds. Most Phocidae have vibrissae with undulated surfaces, while Otariidae, Odobenidae, and a few phocid species possess vibrissae with smooth surfaces. Variations in cross-sectional profile and orientation of the vibrissae also exist between pinniped species. These factors may influence the way that the vibrissa...
متن کاملActuation and Sensing properties of Electroactive Polymer Whiskers
In a world of unknown, touch modality is a key avenue for environments exploration. Implementation of such modality in mobile robot has been a major challenge for many research teams. Recently, several artificial whisker systems have been studied as promising tactile sensor. One key to the whisker’s functionality is its sensor system. Our laboratory recently synthesized new electroactive polyme...
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ژورنال
عنوان ژورنال: Philosophical Transactions of the Royal Society B: Biological Sciences
سال: 2011
ISSN: 0962-8436,1471-2970
DOI: 10.1098/rstb.2011.0155