Pressure Transducers for High Temperature Environments

精确的压力控制对于汽车、航空航天和制药行业是必要的。除了在高压下操作外，还经常需要处理高温。虽然在这一领域有一些专利，但成本很高，而且系统通常需要汞或油（欧盟或食品工业不允许），这使得它们不适合广泛的市场渗透。挑战在于传统的压力传感器无法在高温（~400 C）下工作。这需要根据其他来源的测量结果进行插值，并在待控制的过程中引入可变性。此外，能够在高温下操作的设计目前使用汞或油，这些在食品加工工业中不可用。该公司的具体问题是开发一种能够在高温下工作的高精度压力传感器，该传感器最初针对汽车行业。

Accurate pressure control is necessary for the automotive, aerospace and pharmaceutical industries. In addition to operating at high pressures, it is often necessary to deal with high temperatures. While there are some patents in this area, the costs are high and the systems often require mercury or oil (not allowed in the EU or Food Industry) that make them unsuitable for widespread market penetration. The challenge is that traditional pressure sensors cannot operate at high temperatures (~400 C). This requires interpolation based on measurements from other sources and introduces variability in the process to be controlled. As well, designs capable of operation at high temperature currently use mercury or oil and these are not usable within the food-processing industry. The company specific problem is to develop a high accuracy pressure sensor that is able to operate at high-temperature that is targeted initially at the automotive industry.