The SandFlow is an acoustic device for detecting and measuring aeolian sand transport. It is based on the FlowCapt sensor, an instrument developed to measure aeolian snow transport. This study investigates the performance of the SandFlow in relation to the Saltiphone and the Modified Wilson and Cooke sampler, two devices frequently used in aeolian sand transport. The performance of the SandFlow was tested during three wind erosion events on the Dutch barrier island Terschelling and also in laboratory tests. Results show that the SandFlow adequately registers the periods of aeolian sand transport provided sand transport is sufficiently intense. For low sand transport the SandFlow is less accurate, although the periods with sand transport may still be detected. The sand transport fluxes measured by the SandFlow were lower than those measured by the MWAC although they remained within the same order of magnitude. Laboratory measurements showed that the efficiency of the SandFlow to register sand transport is close to 100% for sand coarser than 300 µm. For finer sand, efficiency decreases rapidly although the instrument remains usable for particles coarser than 150 µm provided appropriate corrections for efficiency are made. This study shows that the SandFlow can be used for aeolian sand transport provided the erosion event is strong enough and the particles are not too fine.

SandFlow是用于检测和测量风沙输送的声学设备。它基于FlowCapt传感器，这是一种用于测量风雪运输的仪器。这项研究调查了SandFlow与Saltiphone以及改良型Wilson和Cooke采样器（这两个经常用于风沙运输）的性能。在荷兰屏障岛Terschelling的三场风蚀事件中以及实验室测试中，对SandFlow的性能进行了测试。结果表明，如果沙尘运输足够激烈，SandFlow可以充分记录风沙运输的时期。对于低沙量运输，SandFlow的准确性较差，尽管仍然可以检测到沙流的周期。尽管它们保持在相同的数量级，但用SandFlow测得的输沙通量要比用MWAC测得的要低。实验室测量结果表明，对于大于300 µm的沙子，SandFlow记录沙子运输的效率接近100％。对于较细的砂，尽管可以对效率大于150 µm的颗粒进行校正，但仍可使用该仪器，效率会迅速下降。这项研究表明，只要侵蚀事件足够强烈且颗粒不太细，SandFlow可用于风沙运输。效率会迅速下降，尽管只要对效率进行了适当的校正，该仪器仍可用于大于150 µm的颗粒。这项研究表明，只要侵蚀事件足够强烈且颗粒不太细，SandFlow可用于风沙运输。效率会迅速下降，尽管只要对效率进行了适当的校正，该仪器仍可用于大于150 µm的颗粒。这项研究表明，只要侵蚀事件足够强烈且颗粒不太细，SandFlow可用于风沙运输。