压力传感器

Abstract(#br)In this paper, a multi-walled carbon nanotubes (MWCNT) – polydimethylsiloxane (PDMS) nanocomposite is fabricated as a multifunctional sensor to realize a wearable heath monitoring sensor system. The sensor is flexible and can measure both pressure and temperature at areas of contact to human body. This enables continuous monitoring of posture and respiration process for early diagnosis of manifold posture and lung related diseases. Mechanical, thermal responses and morphology are studied and the results are discussed.

To effectively control the critical thickness of a polydimethylsiloxane (PDMS) film and enhance the sensitivity characteristics of the fiber pressure sensor, we propose a new method to optimize the thickness of the PDMS film in a fiber tube. It is characterized by analyzing the relationship between the diffusion rate of the PDMS and its viscosity, and using an oven to solidify the PDMS to a certain extent to accurately control the diffusion rate and diffusion length of the PDMS in the fiber tube.

Fabrication of Vertically Oriented ZnO Micro-crystals array embedded in Polymeric matrix for Flexible DeviceZnO;Semiconductor;Nanorod;Flexible device;Pressure-sensor;Recently, there has been substantial interest in flexible and wearable devices whose properties and performances are close to conventional devices on hard substrates. Despite the advancement on flexible devices with organic semiconductors or carbon nanotube films, their performances are limited by the carrier scattering at the molecular to molecular or nanotube-to-nanotube junctions.

A Hybrid Bilayer Pressure Sensor based on Silver NanowirePressure sensor;silver nanowire (AgNW);PEDOT:PSS;PDMS;bilayer structure;We have fabricated flexible and stretchable pressure sensors using silver nanowires (AgNWs) and analyzed their electric responses. AgNWs are spray coated directly onto uncured polydimethylsiloxane (PDMS) such that AgNWs penetrate into the uncured PDMS, enhancing the adhesion properties of AgNWs. However, the single-layered AgNW sensor exhibits unstable electric response and low pressure sensitivity.

本研究提出了一种可用于生物医学应用的检测血管内壁压力的先进软、生物相容性换能器。该装置包括由椭球结构的聚二甲基硅氧烷封装的三维电活性聚合物芯元件。器件在其传感机构经历不同压力时产生电压输出，从而在不同方向产生变形。因此，可以用来检测不同刚度值的内壁所受的压力。输出电压是由器件的传感机构所经历的应变引起的，无需外加电源。由离子聚合物-金属复合材料制成的核心元件具有独特的中空设计；这使得导管可以通过，核心元件可以固定在导管上的任意位置。我们还证明，该装置可以与医用经皮血管成形术球囊导管集成，形成智能传感模块。该模块可检测血管模体内壁周围不同程度的脂肪堆积。讨论了利用研制的装置获得的信号来评估容器的堵塞和刚度。

本研究提出了一种先进的软生物兼容性传感器，可用于检测血管内壁压力，用于生物医学应用。该装置包括由具有椭球结构的聚二甲基硅氧烷封装的三维电活性聚合物芯元件。该器件在其传感机构经历不同压力时产生电压输出，从而产生不同取向的形变。因此，它可以用来检测不同刚度值的内壁所受的压力。输出电压是由器件感应机构所经历的应变引起的，不需要任何外部电源。核心部件是由离子聚合物-金属复合材料制成的，具有独特的中空设计；它允许导管穿过，核心部件可以锚定在导管上的任意位置。我们还证明，所制作的装置可以与医学上使用的经皮血管成形术球囊导管集成，形成智能传感模块。该模块可以检测到血管模体内壁周围不同程度的脂肪堆积。讨论了利用所研制的装置获得的信号来评价容器的堵塞和刚度。

皮肤对压力敏感的能力促使科学家开发材料和设备来模拟这种功能。近来，柔性可拉伸的人工电子皮肤以其独特的检测微妙压力变化的能力受到越来越多的关注。压力传感是电子皮肤设备的关键功能之一。这里，我们研制了一种可伸展、高灵敏度的压力传感器，它采用带有皮革复合层的聚二甲基硅氧烷( PDMS )薄膜作为柔性部分。这些特点使传感器能够准确地检测人体的多种活动，如小指运动和弯曲、脉冲等。发现传感器对温度有很好的传感信号。这一特性为传感器检测温度提供了极大的希望。