Micromachined Calorimeter for SEP Diagnostics

9612538肯尼这项提案描述了为美国宇航局/喷气推进实验室新千年航天器计划开发微机械热量计的努力。该装置将用于研究离子发动机排气羽流对被动红外辐射器的影响，被动红外辐射器用于从航天器核心和科学仪器释放热量。新千年是一个技术验证计划，将在第一个深空一号(DS1)上提供飞行机会。通过降低热容和导热系数，提高了暴露量热计的性能。硅微机械加工非常适合于这一任务，提供具有良好特性、热特性、机械特性和光学特性的低应力氮化物膜。微机械热量计的预期特性提供了比传统制造的热量计显著的性能改进。***

9612538 Kenny This proposal describes an effort to develop a Micromachined Calorimeter for the NASA/JPL New Millennium Spacecraft Program. This device will be used to study effects of the ion engine exhaust plume on passive infrared radiators used to release heat from the spacecraft core and from science instruments. New Millennium is a technology validation program, and will provide a flight opportunity on the first Deep Space 1 (DS1). The performance of exposure calorimeters is improved through reduction of heat capacity and thermal conductance. Silicon Micromachining is ideally suited to this task, offering low-stress nitride membranes with well-characterized, thermal, mechanical, and optical characteristics. The expected characteristics of the Micromachined Calorimeter offer a significant performance improvement over conventionally-built calorimeters. ***