Artificial sensory hairs based on the flow sensitive receptor hairs of crickets
نویسندگان
چکیده
Abstract This paper presents the modelling, design, fabrication and characterization of flow sensors based on the wind-receptor hairs of crickets. Cricket sensory hairs are highly sensitive to drag-forces exerted on the hair shaft. Artificial sensory hairs have been realized in SU-8 on suspended SixNy membranes. The movement of the membranes is detected capacitively. Capacitance versus voltage, frequency dependence and directional sensitivity measurements have been successfully carried out on fabricated sensor arrays, showing the viability of the concept.
منابع مشابه
Estimation of squeeze film damping in artificial hair‐sensor towards the detection‐limit of crickets’ hairs
engineers. In this approach, using the bio-inspired systems biologists try to understand nature by testing their hypotheses while engineers try to design high-performance sensory systems based on the knowledge of their counterparts in nature, circumventing the limited performance and poor robustness of traditionally engineered sensors. recently, the mechano-sensory hair system of crickets has b...
متن کاملBiomimetic Micromechanical Adaptive Flow-Sensor Arrays
We report current developments in biomimetic flow-sensors based on flow sensitive mechano-sensors of crickets. Crickets have one form of acoustic sensing evolved in the form of mechanoreceptive sensory hairs. These filiform hairs are highly perceptive to low-frequency sound with energy sensitivities close to thermal threshold. In this work we describe hair-sensors fabricated by a combination of...
متن کاملHair canopy of cricket sensory system tuned to predator signals.
Filiform hairs located on the cerci of crickets are among the most sensitive sensors in the animal world and enable crickets to sense the faintest air movements generated by approaching predators. While the neurophysiological and biomechanical aspects of this sensory system have been studied independently for several decades, their integration into a coherent framework was wanting. In order to ...
متن کاملAir-flow sensitive hairs: boundary layers in oscillatory flows around arthropod appendages.
The aim of this work is to characterize the boundary layer over small appendages in insects in longitudinal and transverse oscillatory flows. The problem of immediate interest is the early warning system in crickets perceiving flying predators using air-flow-sensitive hairs on cerci, two long appendages at their rear. We studied both types of oscillatory flows around small cylinders using strob...
متن کاملCentral connections of receptors on rotated and exchanged cerci of crickets.
The cerci of crickets, paired abdominal appendages bearing sound-sensitive filiform hairs, can be removed and grafted back so that their morphological axes acquire various relationships to those of the body. We have studied both the morphogenetic consequences of such surgery and the central connections made by the regenerating axons of the cercal sensory neurons. If a cercus is rotated and graf...
متن کامل