Noncontact Sensing of Surface Hardness Using Pulsating Air Jet
Noncontact Sensing of Surface Hardness Using Pulsating Air Jet
复制标题
使用脉动空气喷射非接触式传感表面硬度
DOI：
10.9746/sicetr1965.28.1152
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发表时间：
1992
期刊：
影响因子：
--
通讯作者：
H. Yamasaki
中科院分区：
文献类型：
--
作者：
H. Shinoda;H. Yamasaki
本文介绍了一种新的非接触式表面硬度遥测传感器。利用声学装置产生脉动空气射流，驱动物体表面的小区域。用激光干涉测量法测量感应振动，并由此评估表面硬度。该过程在没有任何机械接触的情况下完成。这种传感器与以往的传感器相比具有以下优点：对表面几何形状的依赖性小，传感器不需要离表面太近，硬度测量范围宽。该传感器可应用于机器人对精细工件的软抓取，也可应用于流体等食品的成熟度或油漆湿表面的干燥度的估计。在触觉传感中，传感器和物体都可以摆脱由于机械接触而造成的任何损坏和问题。
This paper describes a new remote sensor for noncontact surface hardness evaluation. Pulsated air jet is generated by acoustic device which drives small area of object surface. The induced vibration is measured with laser interferometry, and the surface hardness is evaluated from it. This process is done without any mechanical contact. The new sensor has some merits over the ones which we have previously reported: firstly, it is less dependent upon surface geometry, secondly, it is not necessary to set the sensor so near the surface, and last, wider rangeability of hardness is realized. The sensor can be applied to robot for soft griping of delicate works, and also to estimation of ripeness of foods such as fluits, or of dryness of painted wet surface. Both sensor and object can get rid of any damage and problems due to mechanical contact in tactile sensing.