Impact Response Evaluation of Force Transducer for Use in Falling Weight Deflectometer System
The impact response of a force transducer in a falling weight deflectometer system is evaluated by an optical method. In the method, a mass is made to collide with a force transducer and the impact force is measured highly accurately as the inertial force acting on the mass. A pneumatic linear bearing is used to realize linear motion with a sufficiently small friction acting on the mass, i.e., the moving part of the bearing. The method is an improved variation of the Levitation Mass Method, which has been proposed and developed by the first author. The impact force, which has a maximum value of approximately 1.66 kN and a full width at half maximum of approximately 5.0 ms, has been applied and measured using the Levitation Mass Method with the standard uncertainty of approximately 3.310 N. This corresponds to 210-2 (2％) of the maximum applied force in the experiments. The present status of the method and the points to be considered for the future improvements are discussed.
inertial force inertial mass dynamic force dynamic calibration optical interferometer
Yusaku FUJII Takahiro FUJYU Haruki OKANO
Gunma University, 1-5-1 Tenjin-cho, Kiryu, Gunma 376-8515, Japan Tokyo Sokki Kenkyujo Co., Ltd., 4-247 Aioi-cho, Kiryu, Gunma 376-0011, Japan
国际会议
第五届仪器科学与技术国际学术会议(ISIST 2008)Fifth International Symposium on Instrmentation Science and Technology
沈阳
英文
1-9
2008-09-15（万方平台首次上网日期，不代表论文的发表时间）