经过中国计量科学研究院严格测试,纳米激光器测尺前不久由清华大学研制成功。 纳米激光器测尺外观结构很简单,看上去是一个两端封闭、直径30mm、只比人的手掌稍长一些的石英玻璃管。它的神奇之处在于振荡的激光束自身能感知外界物体的移动,一旦推动圆筒形激光器一头伸出的测量杆,它立刻显示出推动了多少距离。 除了测量范围大、精度高之外,纳米激光器测尺的另外一个优点是能够自行校准自己的“刻度”,直接读出它的测量对象位移了多少,而不像其它测量位移的传感器需要用另外的仪器校准,然后才能用于测量。据了解,此前国内外尚无同类产品研制成功的先例。 清华大学张书练教授介绍,这种纳米量级的激光器测尺可广泛应用于机械零件、部件的位移测量和量块标定以及桥 After China Institute of Metrology rigorous testing, Nanometer laser shortly before the successful development by Tsinghua University. Nanometer laser measuring scale appearance structure is very simple, appears to be a closed at both ends, diameter 30mm, only slightly longer than the human palm quartz glass tube. Its magic is that the oscillating laser beam itself can sense the movement of an external object, and once it has pushed the measuring rod, which protrudes out of the cylindrical laser, it immediately shows how far it is propelled. In addition to its large measuring range and high accuracy, an additional advantage of the nanometer laser scale is its ability to calibrate its own “scale” and read directly how much its measurement target has been displaced, unlike other sensors measuring displacement require additional The instrument is calibrated before it can be used for measurement. It is understood that there is no precedent for the successful development of similar products at home and abroad. Zhang Shu Lian Tsinghua University Professor introduced this nano-scale laser measuring scale can be widely used in mechanical parts, parts of the displacement measurement and calibration of the amount of blocks and bridges