Multi-Software Joint Simulation System of Readout Approach for Resistive Sensor Array

因易于实现和较高的空间分辨率,阻性传感器阵列(RSA)被广泛应用于电子皮肤中。RSA的性能不仅依赖于其制备技术,也与其测试方法性能紧密关联。良好的RSA测试方法应具有测量误差小、读出速率高和电路复杂度低等特点。为了快速评估RSA测试方法的性能,设计了由Lab VIEW、MATLAB、Multisim混合编程实现的联合仿真系统,3个软件分别负责联合仿真系统的控制及显示、数据的处理和测试电路的搭建及电路仿真。首先,描述了联合仿真系统的框架和功能。其次,介绍了RMA(Resistance Matrix Approach)的原理并提出IRMA(Improved RMA),而后利用联合仿真系统仿真了这两种方法。最后,搭建4&times;4阻性阵列实物系统验证仿真结果。结果表明,该系统能够有效正确地评估RSA测试方法的基本性能,且IRMA的测量精度和阻值量程优于RMA。</p

Multi-Software Joint Simulation System of Readout Approach for Resistive Sensor Array

因易于实现和较高的空间分辨率,阻性传感器阵列(RSA)被广泛应用于电子皮肤中。RSA的性能不仅依赖于其制备技术,也与其测试方法性能紧密关联。良好的RSA测试方法应具有测量误差小、读出速率高和电路复杂度低等特点。为了快速评估RSA测试方法的性能,设计了由Lab VIEW、MATLAB、Multisim混合编程实现的联合仿真系统,3个软件分别负责联合仿真系统的控制及显示、数据的处理和测试电路的搭建及电路仿真。首先,描述了联合仿真系统的框架和功能。其次,介绍了RMA(Resistance Matrix Approach)的原理并提出IRMA(Improved RMA),而后利用联合仿真系统仿真了这两种方法。最后,搭建4&times;4阻性阵列实物系统验证仿真结果。结果表明,该系统能够有效正确地评估RSA测试方法的基本性能,且IRMA的测量精度和阻值量程优于RMA。</p

Fabrication and Evaluation of a Stretchable Thermal Sensing Cushion With Multi-Arch Structure

Stretchable and flexible sensing arrays can facilitate human-computer interaction and biofeedback, such as robots, medical devices, and human-computer interface devices. To meet the demand on perceiving the temperature distributions on varied surface areas with low cost, in this paper, we designed a stretchable and flexible thermal sensing cushion (SFTSC) based on the two-dimensional thermistor array with multi-arch structure. The 8x8 negative temperature coefficient resistors each with two pins were used as the thermistors. For good stretchability, every conductive textile electrode (CTE) in the SFTSC was fabricated by folding a conductive textile strip with multi-arch structure in an insulated elastic textile substrate. For decreasing the number of the test wires, all thermistors in the SFTSC were arrayed in the shared row-column fashion by inserting two pins of every thermistor into its row CTE and its column CTE, respectively. The performances of the SFTSC were evaluated by temperature sensing experiments of a cup, human hand and sitting posture, and the experimental results showed that the SFTSC with good flexibility and good stretchability could perceive its surface temperature well even its surface area was stretched larger 2.25 times