Synchronization circuit for material tester and material tester
AssigneeShimadzu Corporation
InventorHiroshi Tsuji
Life of this patent
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Abstract
A synchronous controller is connected to each of boards by one communication wire, and one communication path is formed between the synchronous controller and each of the boards. A multiple synchronization signal S in which a plurality of synchronization signals are multiplexed is transmitted from the synchronous controller to each of the boards. Signal extraction units as extraction means for recognizing synchronization signals included in the multiple synchronization signal S and extracting the individual synchronization signals are provided in the boards, respectively. The individual synchronization signals are extracted from the multiple synchronization signal S input to the boards by the signal extraction units, respectively.
Claims9
A synchronous circuit for a material testing machine, the synchronous circuit being provided with a synchronous controller synchronizing operations of a plurality of functional units constituting the material testing machine,
- wherein communication paths are provided to be connected to the synchronous controller and the respective functional units,
- wherein the synchronous controller transmits a multiple synchronization signal in which at least one of the synchronization signals has a different frequency from other synchronization signals are multiplexed to the plurality of functional units via one communication path,
- wherein each of the plurality of functional units is provided with extraction means and the extraction means recognize and extract the respective synchronization signals from the multiple synchronization signal, and
- wherein the multiple synchronization signal is a signal in which a signal with a frequency as a common multiple of frequencies of the plurality of synchronization signals included in the multiple synchronization signal is multiplexed and has a pulse train in which a pulse train of the highest-frequency synchronization signal is used as a reference and pulses of the other synchronization signals are placed at predetermined positions behind a position of a pulse of the highest-frequency synchronization signal in the pulse train.
A synchronous circuit for a material testing machine, the synchronous circuit being provided with a synchronous controller synchronizing operations of a plurality of functional units constituting the material testing machine,
- wherein communication paths are provided to be connected to the synchronous controller and the respective functional units,
- wherein the synchronous controller transmits a multiple synchronization signal in which at least one of the synchronization signals has a different frequency from other synchronization signals are multiplexed to the plurality of functional units via one communication path,
- wherein each of the plurality of functional units is provided with extraction means and the extraction means recognize and extract the respective synchronization signals from the multiple synchronization signal, and
- wherein the multiple synchronization signal is a signal in which each of the plurality of synchronization signals included in the multiple synchronization signal is a multiplexed signal with a frequency as a common multiple of frequencies of the plurality of synchronization signals and a pulse width in a pulse train varies with the number of the plurality of synchronization signals included in the multiple synchronization signal.
Dependencies are inferred from the claim text.