A Review Paper on Recent Developments in MEMS Sensors and its Applications in Automobiles (original) (raw)
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A review of micromachined sensors for automotive applications
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Modeling MEMS devices for Automotive Applications
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Applications of micro-electromechanical systems (MEMS) in automobiles are fairly recent. The two most common examples of MEMS use in automobiles are in crash sensing for airbag deployment, and in manifold absolute pressure sensing. There are, however, several other areas where MEMS devices are expected to replace more traditional technologies within the next few years.
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SENSORS IN AUTOMOBILE AND ASSOCIATED MECHANISMS: A REVIEW
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TJPRC, 2013
MEMS has been identified as one of the most promising technologies for the 21st Century. Trend toward smaller size, higher performance, and greater functionality for electronic devices is made possible by the success of solid-state microelectronics technology. Current MEMS devices include accelerometers for airbag sensors, inkjet printer heads, computer disk drive read/write heads, projection display chips, blood pressure sensors, optical switches, microvalves, biosensors and many other products that are all manufactured and shipped in high commercial volumes. Its techniques and micro system-based devices have the potential to dramatically affect of all of our lives and the way we live. So we will try to utilize advantages of the MEMS sensor technology in most of the important applications such as Bio-sensing and bioinspired sensors, which are making an impact on technological development, innovation and progress in biomedical applications, mechanical sensors, thermo-fluid and electro-magnetic domains.
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Technical products realize the need of integrating mechanics with digital electronics and information processing. This results into an integrated system called mechatronic system. Mechatronics has a lot of influence on a large variety of products in the area of mechanical, electrical and electronic engineering. It has changed the basic design, for example, of conventional electromechanical components, machines, vehicles and precision mechanical devices with increasing intensity. The main objective behind is to build smart products and " intelligent " machines. This paper presents about the elements of mechatronic system and its evolution in the field of automobiles. With the automation in technology, automobiles seem to be our basic need in day-today life. We expect better performance, safe drive, user friendly and security in the ongoing development of Automobiles. Modern mechatronics can be applied to make these expectations come true with smarter mechanisms, via improved efficiencies, speed controls and system interaction. This paper highlights on some of the mechatronic systems used in automobiles.
. Piezoresistive MEMS Pressure sensor IEEE format
Understanding the tire behavior during tire inflation is critical to design a high-performance tire. To improve handling and response, tire manufacturers need to understand the changes of a tire under various conditions. A MEMS pressure sensor can be placed on the rim to make contact with the tire bead, and can measure the pressure distribution of a tire across the sensor face. Considering the unique nature of each sensor and the trade-offs in design, it is not feasible to follow a standard design approach. Thus, it is useful to derive the specific design, considering number of important factors to arrive at the 'ideal' design. The selection of appropriate parameters of piezoresistors such as the shape and the position of the piezoresistor on the pressure sensor diaphragm, thickness of diaphragm are important. This research work shows the scope of using analytical solutions and design techniques for a development of piezoresistive pressure sensor. This research work also focuses on piezoresistive pressure sensor principles, design, modeling, parameters to be considered, materials that can be used in MEMS fabrication. Here the MEMS fabrication process has been discussed in brief pertaining to the application and feature size. Few models of piezoresistive based MEMS pressure sensors have been simulated, analysed and the results are presented.
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