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LSDLD-20 Dam Piping and Leakage Detection Instrument

The LSDLD-20 is a newly designed instrument based on the fundamental principle of the "flow wiping field method." It offers high precision, accuracy, and rapid detection capabilities for identifying piping leakage entry points and seepage channels in riverbanks and reservoirs. It is suitable for detecting piping and seepage issues in various dam types, including earth dams, stone dams, and concrete dams, as well as their foundations.

The LSDLD-20 consists of three main components: a transmitter, a receiver, and sensors. Leveraging the "flow wiping field method," it integrates advanced technologies such as pseudo-random current signal transmission and reception, near-field source anomaly enhancement, high-resolution rapid current density field detection, and multi-component current density field measurement. The device employs an embedded intelligent industrial computer as the primary platform, featuring a user-friendly human-machine interface. It can connect to RTK and depth sounders, enabling high-precision data collection and positioning.

product details

Product Features

1.Adjustable Output Voltage: Features a 5-level adjustable output voltage function, making it highly suitable for field operations and practical scenarios.

2.Full Digital Signal Processing: Adopts fully digital signal acquisition and processing technology, ensuring stability and reliability.

3.Real-Time Curve Plotting: Capable of real-time curve plotting for rapid on-site anomaly analysis and localization, with immediate reflection of abnormal results.

4.Data Storage and Marking: Allows real-time data storage and marking for post-processing and convenient result submission.

5.Water-Electric Separation: Ensures safety and reliability through water-electric separation design.

Product Parameters

Item	Technical Specification
	Transmitter
Output Frequency	Drift within 7 hours better than 7×10⁴
Input Voltage	20V–29V
Output Voltage	20V, 40V, 60V, 80V, and 100V
Output Current	≤1A
	Receiver
Measurement Range	250μV–60mV
Measurement Error	≤±2%
Receiving Sensitivity	>1.0×10⁻⁴ A/m²
Input Impedance	≥150kΩ
Power Frequency Interference Resistance	>50dB
Continuous Working Time	>7 hours

Application Areas

Using the dam piping and leakage detection instrument for on-site operation demonstration, the actual fieldwork took a very short time, including construction wiring and water surface measurement, with the entire process completed in less than 3 hours. The task was completed quickly and accurately, providing high precision and accuracy in detecting piping and leakage issues, thereby offering scientific support for flood prevention efforts.