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High Frequency Degenerate Mode Acoustic Sensors

高频简并模式声学传感器

基本信息

批准号：
EP/K000349/1
负责人：
Barry Gallacher
金额：
$ 99.12万
依托单位：
Newcastle University
依托单位国家：
英国
项目类别：
Research Grant
财政年份：
2012
资助国家：
英国
起止时间：
2012 至无数据
项目状态：
已结题

来源：
https://gtr.ukri.org/projects?ref=EP%2FK000349%2F1
关键词：
Frequency Degenerate Mode Acoustic Sensors

项目摘要

The purpose of this research bid is to investigate and characterise a completely new form of acoustic surface wave resonator and to apply the concept to the design and fabrication of ultra-robust inertial rate and ultra-sensitive mass sensors. The form greatly simplifies manufacture and packaging, uses a cheap substrate material, and, depending on the application, is robust to the influences of temperature, load and surrounding fluid. The applications are targeted at the defence and healthcare industries, both of which have recognised opportunities for creating a knowledge economy, influencing security, and promoting health and well-being. In defence there is a well established market for low performance rate gyros and the basic driver is cost. However there is an important gyroscopic application in guided munitions/shells which still seeks a satisfactory solution. Here the gyro (currently a fragile piece) has to be very low cost and structurally robust enough not to be influenced by the extreme inertia loads and vibration experienced during launch and in flight. Also, to be able to operate without the requirement of an evacuated case-all MEMS gyros operate under vacuum- would be a major packaging advantage. The proposed design offers a way forward for this application and will challenge low cost gyro applications in automotive and consumer markets.The application as a mass sensor is for the detection and monitoring of disease in healthcare and bio-detection in defence. The potential for the sensor to be miniaturizable, portable, cheap to mass produce, simple readout electronics, temperature/environment compensated with high sensitivity and multiplex possibilities make it an attractive platform. Success in this area would have a positive impact on the effectiveness of public health care and security, particularly if the sensor and its supporting system could be made at a low enough cost to be become attractive system for use at the first point of need. A major advantage of using a degenerate mode resonator as the mass sensor is that the recording system is much simplified as it does not require the sensor to be housed in a temperature controlled environment. Owing to their improved performance/robustness and low manufacturing costs, the proposed sensors have the potential to replace existing SAW as well as MEMS sensors. Moreover, as a result of their wide-ranging applications, successful development would stimulate the manufacturing industry in the UK.

这项研究的目的是研究和表征一种全新的声表面波谐振器，并将这一概念应用于超强韧惯性速率和超灵敏质量传感器的设计和制造。这种形式大大简化了制造和包装，使用了廉价的衬底材料，并且根据应用的不同，对温度、负载和周围流体的影响具有很强的耐用性。这些应用程序针对的是国防和医疗行业，这两个行业都认识到了创造知识经济、影响安全以及促进健康和福祉的机会。在国防方面，低性能陀螺仪有一个成熟的市场，基本的驱动因素是成本。然而，在制导弹药/炮弹中有一个重要的陀螺仪应用，它仍在寻求令人满意的解决办法。在这里，陀螺仪(目前是一个易碎的部件)必须非常低的成本和足够坚固的结构，以不受发射和飞行过程中经历的极端惯性载荷和振动的影响。此外，能够在不需要真空外壳的情况下操作-所有MEMS陀螺仪都在真空下操作-将是一个主要的封装优势。拟议的设计为这一应用提供了前进的方向，并将挑战低成本陀螺仪在汽车和消费市场的应用。作为质量传感器的应用是医疗保健中的疾病检测和监测以及国防中的生物检测。该传感器具有小型化、便携、批量生产成本低廉、简单的读出电子设备、具有高灵敏度补偿的温度/环境以及多种可能性的潜力，这使其成为一个有吸引力的平台。这一领域的成功将对公共卫生保健和安全的有效性产生积极影响，特别是如果传感器及其支持系统能够以足够低的成本制造，以便在第一个需要的时候成为有吸引力的系统。使用简并模谐振器作为质量传感器的主要优点是记录系统大大简化，因为它不需要将传感器容纳在温度控制的环境中。由于其改进的性能/稳健性和较低的制造成本，建议的传感器具有取代现有SAW和MEMS传感器的潜力。此外，由于它们的广泛应用，成功的开发将刺激英国的制造业。