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研制一种检验直角准确度的测量仪应满足下列条件:1.测量准确度至少应达1′;2.测量应不用度盘;3.在使用参考角的情况下,能进行可复现的绝对测量,有时还能进行重调;4.不需复杂计算就能获得测量结果;
The development of a test of right angle accuracy of the measuring instrument should meet the following conditions: 1. Measurement accuracy should be at least 1 ’; 2. The measurement should not be disc; 3. In the case of the use of reference angle can be reproducible Absolute measurement, and sometimes can be re-adjusted; 4 without complex calculations will be able to obtain measurement results;