SBIR Phase I: High Pressure, High Temperature Thin Film Sensors

SBIR 第一阶段：高压、高温薄膜传感器

• 批准号: 9561075
• 负责人: Tirumalai Sudarshan
• 金额: $ 7.5万
• 依托单位: Materials Modification Inc.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1996
• 资助国家: 美国
• 起止时间: 1996-03-01 至 1996-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9561075&HistoricalAwards=false
• 关键词: SBIR; Phase; Pressure; Temperature; Thin

This Small Business Innovative Research (SBIR) Phase I project will demonstrate the fabrication of a high temperature, high pressure sensor for measuring contact stresses between moving surfaces. Wear due to friction and high contact stresses is a major factor in the design and analysis of mechanical components such as gears and bearings. Due to the uncertain nature of the real area of contact between surfaces, there is no recourse but to use models to predict these contact stresses. Numerous analytical models are used to predict surface stresses occurring at various locations. However, actual verification of these models is difficult due to a lack of accurate experimental data since there are no sensors capable of withstanding temperatures as high as 900oK and pressures on the order of many GPa. Furthermore, these sensors must be capable of making a point contact without interfering with the contact motions. Although many types of sensors are available on the market, none of these can measure the required parameters in situ. Phase I will develop a novel non-invasive sensor capable of withstanding these temperature and pressure extremes while delivering accurate real-time data. Phase II would concentrate on the optimization of structure-property-performance of this sensor and fabrication of a production prototype that can be used in a wide variety of applications. Stress and strain sensors have a multitude of commercial applications. Some of them include use in automobile and industrial gears, monitoring cutting forces in cutting and machine tools, smart sensors for aircraft engines and power generator turbines, smart sensors for in-situ monitoring of lubrication needs to extend life of automotive engines and associated components, and in analytical instrumentation in research laboratories.

这个小型企业创新研究 (SBIR) 第一阶段项目将展示用于测量移动表面之间接触应力的高温高压传感器的制造。 由摩擦和高接触应力引起的磨损是齿轮和轴承等机械部件设计和分析的主要因素。 由于表面之间的实际接触面积具有不确定性，因此只能使用模型来预测这些接触应力。 许多分析模型用于预测不同位置发生的表面应力。 然而，由于缺乏准确的实验数据，这些模型的实际验证很困难，因为没有能够承受高达 900oK 的温度和数 GPa 数量级的压力的传感器。 此外，这些传感器必须能够进行点接触而不干扰接触运动。 尽管市场上有许多类型的传感器，但这些传感器都不能现场测量所需的参数。 第一阶段将开发一种新型非侵入式传感器，能够承受这些极端温度和压力，同时提供准确的实时数据。 第二阶段将集中于优化该传感器的结构、性能和制造可用于各种应用的生产原型。 应力和应变传感器具有多种商业应用。 其中一些包括用于汽车和工业齿轮、监测切削和机床中的切削力、用于飞机发动机和发电机涡轮的智能传感器、用于现场监测润滑需求以延长汽车发动机和相关部件寿命的智能传感器、以及研究实验室的分析仪器。