著者
藤本 由紀夫 新宅 英司 田中 義和 藤吉 潤
出版者
一般社団法人 日本機械学会
雑誌
日本機械学会論文集C編 (ISSN:18848354)
巻号頁・発行日
vol.78, no.791, pp.2438-2449, 2012 (Released:2012-07-25)
参考文献数
8
被引用文献数
4 5

Pad type compressive force sensor suitable for high speed impact force measurement is developed. A piezoelectric film is sandwiched by a pair of the thin metal sheets. The electric wire is connected to the metal sheets which are the electrode of piezoelectric film. The whole of the sensor is covered by thin resin sheet, and layer components inside the sensor are fixed together in one body. A sensor is about 1mm in thickness and it can be made in the various shape according to the purpose of use. Several pad sensors are made for trial purpose, and the performance are examined through experiments by applying fluctuating loads and impact loads. Finally, the pad sensor is applied to the impact force measurement of golf ball shot by setting up the sensor to No5 and No9 golf irons.
著者
Liu Chen 藤本 由紀夫 田中 義和 上杉 征 並河 隆浩
出版者
一般社団法人 日本機械学会
雑誌
日本機械学会論文集 (ISSN:21879761)
巻号頁・発行日
vol.80, no.816, pp.BMS0244, 2014 (Released:2014-08-25)
参考文献数
7

When human body is punched by the boxing glove, both of the body surface and the boxing glove deform in a complex shape. The purpose of this study is to develop a flexible sensor that can be used in such interface. Firstly, several mechanical phenomena, which are the cause of error signal of the sensor, are discussed. These are the influences of out-of-plane bending deformation, shear force caused by rubbing force, shear force caused by the Poisson's effect of contact material, and the transverse compressive force caused by the overhanging deformation of flexible material. Then as a sensor that can eliminate the error factors of these, a distribution type impact sensor in which sixteen sensor elements are arranged in a 4x4 matrix is developed. Punching experiments using a boxing glove are carried out by installing the sensor on the load cell, on the concrete wall and on the sandbag. From the experiment, it is found that the impact force can be measured with good accuracy by using the sensor. Despite the sensor has inadequate distribution number of sensor elements, the sensor structure includes mechanical requirements for the flexible impact sensor.