从两个PCI设备中获取同步数据。正弦波连接到Ni PCI-6251的通道0和Ni PCIE-6363的通道0。通过证明获得的信号之间的零相滞后，可以验证同步操作。

Set up and start a multi-trigger acquisition on an external event. In this instance, the device is configured to start acquiring data on a rising edge signal.

Acquire data from two different DAQ devices running at different sampling rates. The example uses two National Instruments CompactDAQ analog input modules (9201 and 9211) that have different acquisition rate limits. The 9211 module is used for temperature measurements and acquires at a slower rate (10 Hz) than the 9201 module, which is used to measure voltage (100 Hz). Since all channels in a data acquisition object must acquire at the same rate, to acquire from two modules at multiple rates you need to use two data acquisition objects. To make both DAQ devices start simultaneously, you can use a hardware digital triggering configuration.

Create an echometer sonar using audio data acquisition and signal processing, which can measure distance by determining the time of flight of a sound pulse reflected off of a surface.