In order to acquire model coefficients of accelerometer on centrifuge trail

three identification methods are compared.They are least squares（LS）method

weighed least squares（WLS）method

total least squares method and error-in-variables（EV） method.Under the circumstances of white noise or closed to white noise in output and input

the centrifuge precision prior to 1×10-5

the identification precision of LS method is as high as the other two.WLS method is compared with LS method through the test.The test results demonstrate that WLS method is more suitable for data processing in accelerometer test on centrifuge.