Difference between revisions of "BoSL FAL Pump"
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=Overview= | =Overview= | ||
Water sampling is an essential undertaking for water utilities and agencies to protect and enhance our natural resources. The high variability in water quality, however, often necessitates a spatially distributed sampling program which is impeded by high-cost and large sampling devices. This paper presents the BoSL FAL Pump - a low-cost, easily constructed, 3D-printed peristaltic pump which can be made from commonly available components and is sized to suit even the most space constrained installations. The pump is 38mm in height and 28mm in diameter, its components cost $16 AUD and the construction time is just 12 minutes (excluding 3D printing times). The pump is driven by a direct current motor which is commonly available, cheap and allows for flexibility in the energy supply (5-12 V). Optionally, the pump has a Hall effect sensor and magnet to detect rotation rates and pumping volumes to improve the accuracy of pumping rates/volumes. The pump can be easily controlled by commonly available microcontrollers, as demonstrated by this paper which implements the ATmega328P on the Arduino Uno R3. This paper validates the pump for long-term deployments at flow rates of up to 13mL per minute in 0.14mL volume increments at accuracy levels of greater than 99%. The pump itself is scalable, allowing for a wider range of pumping rates when, for example, large volume samples are required for pathogen and micropollutant detection. | Water sampling is an essential undertaking for water utilities and agencies to protect and enhance our natural resources. The high variability in water quality, however, often necessitates a spatially distributed sampling program which is impeded by high-cost and large sampling devices. This paper presents the BoSL FAL Pump - a low-cost, easily constructed, 3D-printed peristaltic pump which can be made from commonly available components and is sized to suit even the most space constrained installations. The pump is 38mm in height and 28mm in diameter, its components cost $16 AUD and the construction time is just 12 minutes (excluding 3D printing times). The pump is driven by a direct current motor which is commonly available, cheap and allows for flexibility in the energy supply (5-12 V). Optionally, the pump has a Hall effect sensor and magnet to detect rotation rates and pumping volumes to improve the accuracy of pumping rates/volumes. The pump can be easily controlled by commonly available microcontrollers, as demonstrated by this paper which implements the ATmega328P on the Arduino Uno R3. This paper validates the pump for long-term deployments at flow rates of up to 13mL per minute in 0.14mL volume increments at accuracy levels of greater than 99%. The pump itself is scalable, allowing for a wider range of pumping rates when, for example, large volume samples are required for pathogen and micropollutant detection. | ||
| − | = | + | =Journal Paper describing the pump= |
http://dx.doi.org/10.13140/RG.2.2.35486.77123 | http://dx.doi.org/10.13140/RG.2.2.35486.77123 | ||
| + | <br> | ||
| + | https://doi.org/10.1016/j.ohx.2021.e00214 | ||
=3D print files, code and original datasets= | =3D print files, code and original datasets= | ||
Latest revision as of 05:49, 1 July 2021
Contents
Overview
Water sampling is an essential undertaking for water utilities and agencies to protect and enhance our natural resources. The high variability in water quality, however, often necessitates a spatially distributed sampling program which is impeded by high-cost and large sampling devices. This paper presents the BoSL FAL Pump - a low-cost, easily constructed, 3D-printed peristaltic pump which can be made from commonly available components and is sized to suit even the most space constrained installations. The pump is 38mm in height and 28mm in diameter, its components cost $16 AUD and the construction time is just 12 minutes (excluding 3D printing times). The pump is driven by a direct current motor which is commonly available, cheap and allows for flexibility in the energy supply (5-12 V). Optionally, the pump has a Hall effect sensor and magnet to detect rotation rates and pumping volumes to improve the accuracy of pumping rates/volumes. The pump can be easily controlled by commonly available microcontrollers, as demonstrated by this paper which implements the ATmega328P on the Arduino Uno R3. This paper validates the pump for long-term deployments at flow rates of up to 13mL per minute in 0.14mL volume increments at accuracy levels of greater than 99%. The pump itself is scalable, allowing for a wider range of pumping rates when, for example, large volume samples are required for pathogen and micropollutant detection.
Journal Paper describing the pump
http://dx.doi.org/10.13140/RG.2.2.35486.77123
https://doi.org/10.1016/j.ohx.2021.e00214
3D print files, code and original datasets
See our repository here: https://data.mendeley.com/datasets/prb2wzr77y/1
Test together with microBoSL board - 3rd Feb 2020
A test was conducted to see how the microBoSL was able to perform in a pumping environment. To do this the BoSL FAL pump was connected to a water reservoir and an empty water container. The pumping program was uploaded to the microBoSL with parameters: PumpEveryXMin = 1, DurationOfRun = 180, NumberOfSpins = 10. The microBoSL and pump were powered with a 4.2V li-ion battery. The hall effect sensor was connected directly up to the ports on the microBoSL. The pump was connected on the positive side through 4.2V and on the negative side to the MOSFET integrated into the microBoSL. The test was ended at the 3 hour and 9 minute mark as the microBoSL had not finished on its own. It is uncertain if this was because of the inaccuracies of the internal clock. At the end of the a volume of 260 mL was pumped. Given that over this time the pump underwent approximately 1890 rotations the volume per rotation is 0.14 mL. This is in accordance with proper operation of the pump.
