材料试验机的检定,是将标准计器或标准仪器(一般为三级标准测力计)的示值和试验机的示值进行比较,以确定机器的误差。检定方法有直接和间接两种:直接检定法就是利用标准砝码或者利用标准砝码和标准杠杆结合起来的检定方法,一般用来检定小荷载 Material testing machine test is the standard or standard equipment (usually three standard dynamometer) and the indication of the test machine to compare the value to determine the error of the machine. Test methods are direct and indirect two: Direct test method is the use of standard weights or use of standard weights and standard lever combination of the test method is generally used to test a small load