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NETWORK NODE APPARATUS FOR USE IN A STIMULUS-RESPONSE SENSING MEASUREMENT, NETWORK CONTAINING SUCH AN APPARATUS AND MEASUREMENT METHOD USING SUCH A NETWORK
NETWORK NODE APPARATUS FOR USE IN A STIMULUS-RESPONSE SENSING MEASUREMENT, NETWORK CONTAINING SUCH AN APPARATUS AND MEASUREMENT METHOD USING SUCH A NETWORK
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机译:用于刺激响应感测中的网络节点设备,包含该设备的网络以及使用该网络的测量方法
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摘要
A network for performing a stimulus response experiment, for example to measure a propagation delay between different locations on an object contains a node apparatus and a further node apparatus. The node apparatus performs stimulus generation and a further node apparatus performs sensor data capture. The node apparatus comprises a handling circuit configured to control timing of stimulus generation based on a trigger signal. The experiment is prepared in a computer of the node apparatus. The computer supplies a command to a transmitter circuit to command the transmitter circuit to transmit a message to the further node apparatus. The transmitter circuit is used both to transmit the message in response to the command and to generate the trigger signal in a predetermined relation to a time of transmission of the message. Thus, accurate coordination timing is ensured in spite of possible inaccuracies in the preparation control circuit.
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