Autonomous Modular Water Sampling System

In-situ water sampling systems are often large, cumbersome, and costly. The objective of this project was to create a low-cost, standalone system to autonomously gather a sample of water at prescribed depth. Based on review of existing systems, a specific need was identified for an affordable system for academic usage onboard a variety of payload delivery vehicles. Ease of use, low cost, and attritability were valued in the design process. The developed system consists of a syringe, linear servo, depth sensor, and an enclosure obtained from Blue Robotics. The system can gather a 45ml sample once at depth and can be attached to remotely operated vehicles, or other delivery systems. This paper summarizes design, construction, and testing of the prototype system.