Increasing the reliability of solution exchanges by monitoring solenoid valve actuation
Solenoid valves are a core component of most solution perfusion systems used in neuroscience research. As they open and close, they control the flow of solution through each perfusion line, thereby modulating the timing and sequence of chemical stimulation. The valves feature a ferromagnetic plunger...
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| Acceso en línea: | http://hdl.handle.net/20.500.12110/paper_01650270_v185_n2_p280_Auzmendi |
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todo:paper_01650270_v185_n2_p280_Auzmendi2023-10-03T15:02:35Z Increasing the reliability of solution exchanges by monitoring solenoid valve actuation Auzmendi, J.A. Moffatt, L. Concentration jump Patch clamp Perfusion Receptor kinetics Solenoid valve ferromagnetic material analytical equipment article atmospheric pressure electric potential observation priority journal process development process monitoring sensor signal detection solenoid systematic error Equipment Design Microfluidics Pulsatile Flow Reproducibility of Results Solutions Solenoid valves are a core component of most solution perfusion systems used in neuroscience research. As they open and close, they control the flow of solution through each perfusion line, thereby modulating the timing and sequence of chemical stimulation. The valves feature a ferromagnetic plunger that moves due to the magnetization of the solenoid and returns to its initial position with the aid of a spring. The delays between the time of voltage application or removal and the actual opening or closing of the valve are difficult to predict beforehand and have to be measured experimentally. Here we propose a simple method for monitoring whether and when the solenoid valve opens and closes. The proposed method detects the movement of the plunger as it generates a measurable signal on the solenoid that surrounds it. Using this plunger signal, we detected the opening and closing of diaphragm and pinch solenoid valves with a systematic error of less than 2 ms. After this systematic error is subtracted, the trial-to-trial error was below 0.2 ms. © 2009 Elsevier B.V. All rights reserved. Fil:Auzmendi, J.A. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. Fil:Moffatt, L. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar http://hdl.handle.net/20.500.12110/paper_01650270_v185_n2_p280_Auzmendi |
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Universidad de Buenos Aires |
| institution_str |
I-28 |
| repository_str |
R-134 |
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Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
| topic |
Concentration jump Patch clamp Perfusion Receptor kinetics Solenoid valve ferromagnetic material analytical equipment article atmospheric pressure electric potential observation priority journal process development process monitoring sensor signal detection solenoid systematic error Equipment Design Microfluidics Pulsatile Flow Reproducibility of Results Solutions |
| spellingShingle |
Concentration jump Patch clamp Perfusion Receptor kinetics Solenoid valve ferromagnetic material analytical equipment article atmospheric pressure electric potential observation priority journal process development process monitoring sensor signal detection solenoid systematic error Equipment Design Microfluidics Pulsatile Flow Reproducibility of Results Solutions Auzmendi, J.A. Moffatt, L. Increasing the reliability of solution exchanges by monitoring solenoid valve actuation |
| topic_facet |
Concentration jump Patch clamp Perfusion Receptor kinetics Solenoid valve ferromagnetic material analytical equipment article atmospheric pressure electric potential observation priority journal process development process monitoring sensor signal detection solenoid systematic error Equipment Design Microfluidics Pulsatile Flow Reproducibility of Results Solutions |
| description |
Solenoid valves are a core component of most solution perfusion systems used in neuroscience research. As they open and close, they control the flow of solution through each perfusion line, thereby modulating the timing and sequence of chemical stimulation. The valves feature a ferromagnetic plunger that moves due to the magnetization of the solenoid and returns to its initial position with the aid of a spring. The delays between the time of voltage application or removal and the actual opening or closing of the valve are difficult to predict beforehand and have to be measured experimentally. Here we propose a simple method for monitoring whether and when the solenoid valve opens and closes. The proposed method detects the movement of the plunger as it generates a measurable signal on the solenoid that surrounds it. Using this plunger signal, we detected the opening and closing of diaphragm and pinch solenoid valves with a systematic error of less than 2 ms. After this systematic error is subtracted, the trial-to-trial error was below 0.2 ms. © 2009 Elsevier B.V. All rights reserved. |
| format |
JOUR |
| author |
Auzmendi, J.A. Moffatt, L. |
| author_facet |
Auzmendi, J.A. Moffatt, L. |
| author_sort |
Auzmendi, J.A. |
| title |
Increasing the reliability of solution exchanges by monitoring solenoid valve actuation |
| title_short |
Increasing the reliability of solution exchanges by monitoring solenoid valve actuation |
| title_full |
Increasing the reliability of solution exchanges by monitoring solenoid valve actuation |
| title_fullStr |
Increasing the reliability of solution exchanges by monitoring solenoid valve actuation |
| title_full_unstemmed |
Increasing the reliability of solution exchanges by monitoring solenoid valve actuation |
| title_sort |
increasing the reliability of solution exchanges by monitoring solenoid valve actuation |
| url |
http://hdl.handle.net/20.500.12110/paper_01650270_v185_n2_p280_Auzmendi |
| work_keys_str_mv |
AT auzmendija increasingthereliabilityofsolutionexchangesbymonitoringsolenoidvalveactuation AT moffattl increasingthereliabilityofsolutionexchangesbymonitoringsolenoidvalveactuation |
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