I-Corps: Carbon nanotube coaxial noise control

I-Corps项目更广泛的影响/商业潜力是制造具有管道和管道声音传输的静音产品和系统。汽车排气和进气口、建筑供暖和通风系统以及流体流动管道等系统都将声音从发电设备传输到人类接收器。为了减少人们接触到的噪音，在管道和管道系统中加入了被动和主动噪音控制系统。目前这些系统庞大、笨重且效率低下。紧凑轻便的同轴有源噪声控制系统的应用对许多噪声控制元件尺寸限制设计的行业具有潜在的影响。更重要的是，通过减少环境压力，减少环境中的噪音对社会所有成员的健康和健康都有潜在的好处。减少机械管道和管道系统发出的噪声是减少整体环境噪声暴露的重要步骤。这个I-Corps项目探索了同轴热敏听器（或热驱动固态扬声器）的市场需求，特别是那些使用碳纳米管（CNT）薄膜制造的热敏听器。热听器的想法早在1898年就提出了。然而，热听器的实际应用尚未实现。这主要是由于缺乏低热容材料来制造热听器。碳纳米管薄膜由于其单位面积的低热容量以及相对较低的生产成本，使其成为高效的热敏器。目前的主动噪声控制技术依赖于过时的动圈传感器设计，由于尺寸、重量、成本和性能限制，限制了它们的广泛实施。同轴热敏传感器设计大大减小了尺寸和重量，同时提高了潜在的噪声控制性能。这个I-Corps国家项目将使我们更好地理解客户细分、价值主张、客户痛点、价值链、交付方法、合作伙伴关系和最小可行产品。

The broader impact/commercial potential of this I-Corps project is to make quiet products and systems that have pipe and duct sound transmission. Systems like automobile exhausts and intakes, building heating and ventilation systems, and fluid flow piping all transmit sound from power generating equipment to human receivers. In order to reduce the amount of noise to which people are exposed, passive and active noise control systems are incorporated in pipe and duct systems. These systems are currently large, heavy and inefficient. The application of a compact and lightweight coaxial active noise control system has potential implications on many industries where size of noise control elements constrain design. More importantly, the reduction of noise in the environment has potential health and wellness benefits for all members of society through environmental stress reduction. Reducing noise emitted from mechanical pipe and duct systems is an important step in reducing overall environmental noise exposure.This I-Corps project explores the market need for coaxial thermophones (or heat-driven solid state speaker), particularly those manufactured using carbon nanotube (CNT) thin films. The idea of a thermophone was developed as early as 1898. However, practical applications of the thermophone have not been realized. This is mainly due to lack of low heat capacity material to manufacture the thermophone. CNT thin-films enable an efficient thermophone due to their low heat capacity per unit area as well as their relatively low production cost. Current active noise control technologies rely on outdated moving coil transducer design, which limits their widespread implementation due to size, weight, cost, and performance restrictions. A coaxial thermophone transducer design reduces size and weight significantly while increasing potential noise control performance. This I-Corps national program will lead to better understanding of customer segments, value propositions, customer pain points, value chains, delivery methods, partnerships, and a minimum viable product.