据美国联邦生产公司预测,一种用激光对块规进行直接测量的新型测量系统可望在1992年初投入市场。该系统不需把每块块规与标准比较,激光器可提供更高的测量精度并代替了块规的比较测量方法。在为空军制造的这种激光测量装置上进行的最初试验表明,其重复精度高于0.025μm。由于 According to the forecast by the U.S. federal manufacturing company, a new type of measurement system that uses laser to directly measure block gauge is expected to be put on the market in early 1992. The system eliminates the need to compare each block gauge to a standard, and the laser provides higher measurement accuracy and replaces block gauge comparison measurements. Initial experiments on such laser measuring devices made for the Air Force showed repeatability above 0.025 μm. due to