Douglas N Lambert

Title: Douglas N Lambert: Innovator in Acoustic Sediment Classification

Introduction

Douglas N Lambert is an accomplished inventor based in Pearl River, LA (US). He has made significant contributions to the field of data acquisition systems, particularly in the area of acoustic sediment classification. With a total of 3 patents, Lambert's work has advanced the understanding and classification of sediments in various aquatic environments.

Latest Patents

One of Lambert's latest patents is a data acquisition system and method that serves as a ranging and data-taking system. This innovative system is particularly useful as an acoustic sediment classification system. It operates by launching acoustic pulses into a water column above a sediment bed of interest, such as a seafloor or riverbed, and recording the echoes from these pulses. The recorded echoes are then transmitted to a processor, which utilizes them to classify the sediment. A key feature of this system is the incorporation of S-RAM (static read-only memory) between the data acquisition hardware and the processor. This design decouples data acquisition from data processing, significantly increasing the system's speed and allowing for the display of processed data, such as sediment contour plots, in virtual real-time.

Another notable patent is the sediment classification system, which is a computer-driven system that receives time-binned echo strength data. For each series of echo strengths received, the system stores the data in computer memory and automatically associates it with the latitude, longitude, and time of data generation. The algorithm then classifies the sediments that produced the echo strengths, determining various parameters such as sediment acoustic impedance, porosity, attenuation, grain size, density, acoustic velocity, and shear strength. The system software can produce additional result files that associate these properties with the corresponding echo strength data. Both raw and reduced data can be displayed in a human-readable form on a computer monitor for operator review. Furthermore, the software can generate navigation plots that trace the points at which data are taken, along with the bottom sediment at those points.

Career Highlights

Throughout his career, Douglas N Lambert has worked with various organizations, including the United States as represented by the Secretary of the Navy. His innovative contributions have had a lasting impact on the field of sediment classification and data acquisition.

Collaborations

Lambert has collaborated with notable individuals in his field, including Richard H Bennett and Frank S Carnaggio. These collaborations have further enriched his work