Method and apparatus of stud array upstand setting

摘要

PCT No. PCT/AU93/00288 Sec. 371 Date Jul. 12, 1996 Sec. 102(e) Date Jul. 12, 1996 PCT Filed Jun. 17, 1993 PCT Pub. No. WO94/00734 PCT Pub. Date Jan. 6, 1994An apparatus and method for setting the upstand height of the studs of an array of studs used to form antenna panels is disclosed. The apparatus includes a transducer beam having a row of spaced-apart distance transducers. The apparatus also includes an actuator beam having a row of spaced rotary actuators. The actuators rotate the threaded studs to raise or lower the studs until the corresponding transducer indicates that the stud has achieved an intended height. Also disclosed is a method using an array of laser diodes, rather than the transducer beam, arranged at one end of the base plate and an array of photo diodes at the opposite end. The output of the diodes indicates the height of the studs.