ACS A1560 SONIC Series User Manual
Also see for A1560 SONIC Series: Programming manualManual
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Contents
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A1560 SONIC - OEM ULTRASONIC PULSER/RECEIVER FRONT-END UNITUser manual316.5 SIGNAL AVERAGINGIn order to increase SNR, the A1560 can perform several pulse/acquisition sequences over a short period of time to calculate asingle averaged data vector and send it to the data acquisition software.The period between pulses shown on Fig.8 is only 50.5 microseconds. It consists of 20.48uS, which is necessary to acquire2048 samples of data at a 10MHz rate, 22uS of fixed internal delay and 8uS of user-defined delay. The four acquired data vectorsare then averaged internally by the A1560, and only one resulting vector is sent to the data acquisition software. User delay canvary from 0 to 65 microseconds with a 10-nanosecond step. User delay can be made random within these limits.6 |
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