Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – With rotor
Patent
1989-10-24
1991-07-23
Karlsen, Ernest F.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
With rotor
324 731, 371 221, G01R 3102, G01R 3128
Patent
active
050346849
ABSTRACT:
A probe device having a loader unit and two measuring units is disclosed. Each of the loader and measuring units is an independent unit supported by an independent casing. Each of the loader and measuring units has its exclusive slave CPU and integrated circuit members are under the control of this slave CPU to manage operations of members at the unit. The slave CPUs are connected to a master CPU, which controls the slave CPUs and which is also an independent unit, and they are connected to one another only through the master CPU. Program language is common to the master and slave CPUs and the units can be electrically connected to form an integral control system in which signals are exchanged among the units.
REFERENCES:
patent: 4698775 (1987-10-01), Koch et al.
patent: 4856904 (1989-08-01), Akagawa
Hosoda Toshihiro
Iijima Toshihiko
Mitsui Kazuo
Niwa Shinji
Sakagawa Hideo
Karlsen Ernest F.
Tokyo Electron Limited
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