1. Measuring cylindrical concave surfaces with large central angles by means of a portable device;Bar-Shay;Prec Eng,1990
2. Measurement of diameters of halfbore and large bore features;Shunmugam;Prec Eng,1989
3. Measuring diameters of large vessels;Currie;Tech Notes,1990
4. Large diameter measuring instrument using rolling wheel method;Xntpnh;Nэmep. Tex.,1990