Department of Systems Science, Osaka University, 1-2 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan.
Department of System Innovation, Osaka University, 1-2 Machikaneyama-cho, Toyonaka, Osaka 560-0043, Japan.
Sensors (Basel). 2021 Jan 15;21(2):593. doi: 10.3390/s21020593.
In this study, we fabricated a novel wearable vibration sensor for insects and measured their wing flapping. An analysis of insect wing deformation in relation to changes in the environment plays an important role in understanding the underlying mechanism enabling insects to dynamically interact with their surrounding environment. It is common to use a high-speed camera to measure the wing flapping; however, it is difficult to analyze the feedback mechanism caused by the environmental changes caused by the flapping because this method applies an indirect measurement. Therefore, we propose the fabrication of a novel film sensor that is capable of measuring the changes in the wingbeat frequency of an insect. This novel sensor is composed of flat silver particles admixed with a silicone polymer, which changes the value of the resistor when a bending deformation occurs. As a result of attaching this sensor to the wings of a moth and a dragonfly and measuring the flapping of the wings, we were able to measure the frequency of the flapping with high accuracy. In addition, as a result of simultaneously measuring the relationship between the behavior of a moth during its search for an odor source and its wing flapping, it became clear that the frequency of the flapping changed depending on the frequency of the odor reception. From this result, a wearable film sensor for an insect that can measure the displacement of the body during a particular behavior was fabricated.
在这项研究中，我们制作了一种新型的可穿戴式昆虫振动传感器，并测量了它们的翅膀拍打。分析昆虫翅膀变形与环境变化的关系对于理解昆虫与周围环境动态相互作用的潜在机制起着重要作用。通常使用高速摄像机来测量翅膀拍打；然而，由于这种方法采用间接测量，因此很难分析由于拍打引起的环境变化所导致的反馈机制。因此，我们提出了一种新型薄膜传感器的制作，这种传感器能够测量昆虫翅膀拍打的频率变化。这种新型传感器由扁平的银颗粒与硅酮聚合物混合而成，当发生弯曲变形时，其电阻值会发生变化。将这种传感器粘贴到飞蛾和蜻蜓的翅膀上并测量翅膀的拍打后，我们能够以高精度测量拍打频率。此外，通过同时测量飞蛾在寻找气味源时的行为与翅膀拍打之间的关系，我们发现翅膀拍打频率取决于气味接收的频率。根据这一结果，我们制作了一种用于昆虫的可穿戴式薄膜传感器，可以测量特定行为过程中身体的位移。
