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Related Concept Videos

Sampling Methods: Sample Types01:18

Sampling Methods: Sample Types

492
Sampling materials are classified into three main types: solid, liquid, and gas.
Solid samples include a variety of substances, such as sediments from water bodies, soil, metals, and biological tissues. Two standard methods for extracting sediments from water bodies are grab sampling and piston coring. Grab sampling involves using a device to collect a discrete sediment sample from the bottom of a water body with minimal disturbance. Grab samples do not always represent the entire area due to...
492
Testing Water Quality01:14

Testing Water Quality

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When the quality of water for concrete preparation is uncertain, its impact on the setting time of cement and compressive strength of mortar is assessed by comparison with de-ionized or distilled water benchmarks. American Society for Testing and Materials (ASTM) C1602 requires the setting times to be within 90 minutes of the control, British Standard (BS) 3146:1980 allows a 30-minute variance in the initial setting, while British Standards European Norm (BS EN) 1008 specifies initial setting...
195

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Quantitatively Measuring In situ Flows using a Self-Contained Underwater Velocimetry Apparatus SCUVA
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Autonomous submersible multiport water sampler.

David A Mucciarone1, Hans B DeJong1, Robert B Dunbar1

  • 1Stanford University, Earth System Science, Stanford, CA 94305, United States.

Hardwarex
|May 2, 2022
PubMed
Summary
This summary is machine-generated.

Researchers developed an affordable, autonomous submersible water sampler (AutoSampler) for oceanography and limnology. This device automates water sample collection, reducing labor and enabling research in remote areas.

Keywords:
AquacultureAutonomousEcologyPumpingSamplingUnderwater

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Area of Science:

  • Environmental Science
  • Engineering
  • Oceanography and Limnology

Background:

  • Manual water sample collection is labor-intensive and challenging in remote or nocturnal settings.
  • Oceanography and limnology research necessitates frequent water sample collection for chemical analysis.

Purpose of the Study:

  • To develop a compact, inexpensive, and autonomous submersible multiport water sampler (AutoSampler).
  • To facilitate water sample collection in challenging environments and reduce logistical burdens for researchers.

Main Methods:

  • The AutoSampler is constructed using predominantly off-the-shelf components for ease of building and maintenance.
  • It utilizes open-source Arduino hardware and software for user-modifiable control of sample collection.
  • The system collects up to 12 discrete samples using a peristaltic pump, with sample volume controlled by actuation time.

Main Results:

  • The described AutoSampler is a cost-effective and adaptable solution for automated water sampling.
  • It can be customized using various pressure housings and off-the-shelf parts.
  • The system enables autonomous collection of up to 12 water samples at predetermined times or intervals.

Conclusions:

  • The developed AutoSampler significantly reduces the labor and logistical difficulties associated with water sample collection.
  • This autonomous system supports critical oceanography and limnology research, particularly in remote or hard-to-access locations.
  • The use of open-source technology and readily available parts promotes accessibility and maintainability for scientific endeavors.