No tide level observation required! Network-type GNSS and single sonar synchronized 3D depth measurement survey.
"Network-type GNSS depth measurement" converts the terrain of the seabed into three-dimensional data using water depth measurements from sonar, starting from elevation acquisition with network-type GNSS. In particular, it can reduce work costs in depth measurements that require tide observations for each baseline, such as regular river cross-section surveys. 【Features】 ■ Tide observations are not required ■ RTK-GNSS method: Measurements are conducted with local benchmarks known - Results can be created to match the elevation of the site ■ VRS-GNSS method: Utilizes the elevation of the nearest electronic reference point - Allows for seabed terrain measurement even without tide observations or known reference points ■ Depth calculations based on traditional tide observations can still be performed For more details, please refer to the catalog or feel free to contact us.
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basic information
【Depth Sounder PDR1200 Specifications】 ■ Manufactured by Senbon Electric Co., Ltd. ■ Measurement range: 1.0 to 130m ■ Accuracy: ±(0.03 + water depth/1000)m or better ■ Operating frequency: 200kHz, half-power beam angle 6 degrees ■ Digital output: RS-232C continuous or external control ■ Operating environment: Operating temperature -10 to +55℃ ■ Dimensions: 390×310×170 ■ Weight: Approximately 8kg *For more details, please refer to the catalog or feel free to contact us.
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Our company is a surveying firm that conducts topographic measurements and bathymetric surveys using drones (autonomous small unmanned aerial vehicles), remote-controlled boats (autonomous unmanned survey vessels), and GNSS (GPS surveying equipment). Among the surveying methods utilizing drones, we offer rare services such as topographic measurements of wooded areas using a small laser scanner mounted on a drone, as well as drone photogrammetry that does not require ground control points. Additionally, we perform environmentally safe bathymetric surveys using small remote-controlled boats, and for GPS-based control point surveys, we can handle everything from public surveying applications to result verification. For specialized measurements, we also create three-dimensional models of tunnels and other structures using digital cameras. Consultations and estimates are provided free of charge. Please visit our website first, and feel free to consult with Apeo Giken regarding any surveying needs, including those requiring specialized techniques, as well as general surveying. We serve clients nationwide.