نتایج جستجو برای: piezoresistive sensor
تعداد نتایج: 189324 فیلتر نتایج به سال:
Carbon nanotube yarns are micron-scale fibers comprised by tens of thousands of carbon nanotubes in their cross section and exhibiting piezoresistive characteristics that can be tapped to sense strain. This paper presents the details of novel foil strain gauge sensor configurations comprising carbon nanotube yarn as the piezoresistive sensing element. The foil strain gauge sensors are designed ...
This paper provides a novel and effective compensation method by improving the hardware design and software algorithm to achieve optimization of piezoresistive pressure sensors and corresponding measurement systems in order to measure pressure more accurately and stably, as well as to meet the application requirements of the meteorological industry. Specifically, GE NovaSensor MEMS piezoresisti...
A MEMS piezoresistive acoustic sensor has been developed for measurement of jet screech noise. The new sensor was calibrated in the sound field of an air siren. Two sensors with a size of 510 and 710 pm were tested and compared to commercial sensors. The results show that the MEMS sensors are five to eight times more sensitive than the smallest commercially available piezoresistive sensors. Fur...
This paper presents the design and fabrication of a multi-axis microelectromechanical system (MEMS) force sensor with integrated carbon nanotube (CNT)-based piezoresistive sensors. Through the use of proper CNT selection and sensor fabrication techniques, the performance of the CNT-based MEMS force sensor was increased by approximately two orders of magnitude as compared to current CNT-based se...
Strain is the concept that expresses how much a material changes its shape under mechanical action. sensors are smart materials can be used in characterization, structural quality control and, more recently, wearable electronics. In literature, there studies detect strain by using piezoresistive mechanism. Piezoresistive effect defines electrical conductivity (or resistivity) of stress. The dev...
Carbon nanotube (CNT)-based piezoresistive strain sensors have the potential to outperform traditional silicon-based piezoresistors in MEMS devices due to their high strain sensitivity. However, the resolution of CNT-based piezoresistive sensors is currently limited by excessive 1/f or flicker noise. In this paper, we will demonstrate several nanomanufacturing methods that can be used to decrea...
This paper focuses on the design and fabrication of a high-temperature piezoresistive pressure sensor with an integrated signal-conditioning circuit, which consists of an encapsulated pressure-sensitive chip, a temperature compensation circuit and a signal-conditioning circuit. A silicon on insulation (SOI) material and a standard MEMS process are used in the pressure-sensitive chip fabrication...
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