Automatic Assembly Line Testing of Cartridges

Frandsen E. Automatic Assembly Line Testing of Cartridges. In: AES Convention 58. Audio Engineering Society; 1977. Paper 1290. Available from: https://aes.org/publications/elibrary-page/?id=3064

@inproceedings{Frandsen1977_3064,
  author = {Frandsen, Ernst},
  title = {{Automatic Assembly Line Testing of Cartridges}},
  booktitle = {AES Convention 58},
  note = {Paper 1290},
  year = {1977},
  month = nov,
  publisher = {Audio Engineering Society},
  url = {https://aes.org/publications/elibrary-page/?id=3064}
}

TY  - CPAPER
TI  - Automatic Assembly Line Testing of Cartridges
AU  - Frandsen, Ernst
T2  - AES Convention 58
M1  - Paper 1290
PY  - 1977
DA  - 1977/11/06
UR  - https://aes.org/publications/elibrary-page/?id=3064
PB  - Audio Engineering Society
LA  - en
AB  - Several measurements are required to verify that the performance of every pickup cartridge assembled on a production line meets its published specifications. Automatic testing makes faster and more accurate measurements possible, and with stored program control, statistical distributions of performance parameters in a production series can be computed. In addition, hard copy of test results, to be enclosed with the cartridge, can be obtained. A minicomputer based production test system for stereo - and quadrophonic cartridges its described, where, by employing a specially designed test record as signal source, the following parameters, characterizing a cartridge are measured and compared against specifications, output voltage, channel difference, tracking ability, frequency response, and channel separation. With a reference cartridge calibrated by the two speed method, variations in test record frequency response are measured automatically, and accounted for in test results. The system incorporates a strip printer for printout of calibration data, and a level recorder to plot frequency response. The total time, including handling, is less than one minute, for the complete test of a cartridge.
ER  -