PDF(Pubmed)
Abstract：
Cardiovascular pressure sensors require dedicated, reliable, and customisable performance testing equipment. Devices available on the market, such as pulsatile pumps and pulse multipliers, offer limited adaptability to the needs of pressure sensor testing or are highly complex tools designed for other purposes. Therefore, there is a strong need to provide an adaptable and versatile device for characterisation during prototype development, prior to animal model testing. Early development requires detailed characterisation of a sensor performance in a realistic environmental scenario. To address this need, we adapted an off-the-shelf pressure chamber with a custom Arduino-based controller to achieve a rapid change in pressure that simulates the pulsatile profile of human blood pressure. The system is a highly customisable tool, and we have experimentally shown that it works successfully in a wide range of pressures from 30 mmHg to 400 mmHg with a resolution of 2 mmHg. By adjusting the chamber volume using a water balloon, we achieved a cycle rate of up to 120 beats per minute. The device can be operated directly from the Arduino IDE or with a customised graphical user interface developed by our research group. The proposed system is intended to assist other researchers in the development of industrial and biomedical pressure sensors.
摘要：
心血管压力传感器需要专用，可靠,和可定制的性能测试设备。市场上提供的设备，如脉动泵和脉冲倍增器，对压力传感器测试的需求提供有限的适应性，或者是为其他目的设计的高度复杂的工具。因此,在原型开发过程中，强烈需要提供一种适应性强、通用性强的表征装置，在动物模型测试之前。早期开发需要在现实环境场景中对传感器性能进行详细表征。为了满足这一需求，我们调整了一个现成的压力室与一个自定义的基于Arduino的控制器，以实现压力的快速变化，模拟人体血压的脉动曲线。该系统是一个高度可定制的工具，我们通过实验证明，它在30mmHg至400mmHg的压力范围内成功工作，分辨率为2mmHg。通过使用水球调节腔室容积，我们实现了每分钟120次的循环速率。该设备可以直接从ArduinoIDE或由我们的研究小组开发的自定义图形用户界面进行操作。所提出的系统旨在帮助其他研究人员开发工业和生物医学压力传感器。
