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    • 6. 发明专利
    • Measuring method utilizing optical interference
    • 使用光学干扰的测量方法
    • JPS58223003A
    • 1983-12-24
    • JP10534182
    • 1982-06-21
    • Hitachi Ltd
    • KUMAZAWA TETSUOSAKAMOTO TATSUJI
    • G01B11/00G01B11/16G01B11/24G01D5/26
    • G01D5/266G01B11/161
    • PURPOSE:To obtain a load, pressure, strain, and the like for a material to be measured by a simple method, by irradiating coherent light on a sensor part, whose form is changed and which is provided at a position where loads such as weights and heat are applied, and measuring the change in interference fringes between reflected lights. CONSTITUTION:A sensor member 4, which is deformed in a concave form or in a convex form, by a load, is provided at a position, where the load of a material to be measured 5 is applied. Coherent light is irradiated from a laser source 1. The light path is changed by a mirror 2 and a mirror 3, and the sensor member 4 is illuminated with the light. The interference of light reflected by the sensor member 4 is transduced into an electrical signal by a light receiving screen or an image pickup element 6. The signal is inputted to an operating device 7. In this method, the load, pressure, strain, and the like can be optically measured by a simple means.
    • 目的:为了通过简单的方法获得要测量的材料的载荷,压力,应变等,通过将相干光照射在传感器部件上,传感器部件的形式改变,并且设置在负载如重量 并施加热量,并测量反射光之间的干涉条纹的变化。 构成:在施加待测材料5的载荷的位置处设置有通过负载以凹形或凸形变形的传感器构件4。 相干光从激光源1照射。通过反射镜2和反射镜3改变光路,并且用光照射传感器部件4。 由传感器构件4反射的光的干涉被光接收屏或图像拾取元件6转换成电信号。该信号被输入到操作装置7.在该方法中,负载,压力,应变和 可以通过简单的手段光学测量。