三大上市猪企10月生猪销量、销售收入同比均下降

yun2025

三大上市猪企10月生猪销量、销售收入同比均下降

触觉显示原型可同时改变软硬程度和表面温度

在虚拟环境里触摸物体，皮肤会同时感到温度与软硬，分别模拟两种感觉的设备难以呈现它们的组合。研究团队制成一款触觉显示原型，利用颗粒堵塞效应调节刚度，再用加热或冷却的水传递热量。这两套机构集成在同一接触表面，因此可以分别考察手指接触处的机械反馈和温度变化。 Joshua Brown等人的这项研究收录在11月6日更新的计算机科学预印本列表中。

机械测试显示，原型可控制刚度增加约300%。热学测量覆盖10至50摄氏度，测试表面温度较为均匀，闭环控制相对设定温度的误差约为0.2摄氏度。作者把感知研究、医学模拟和情感触觉列为可能的应用方向。公开结果描述的是原型能达到的物理指标，温度与刚度的组合能否使不同使用者产生相同感受，还需要另外的人体感知验证。

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