Field Portable Water Sensor
Field Portable Water Sensor - Related Videos
12:08
Field Identification of Matricaria chamomilla using a Portable qPCR System
0 Views •
2020
Presented here is a protocol for field identification of Matricaria chamomilla using a portable qPCR system. This easy-to-perform protocol is ideal as a method to confirm the identity of a botanical species at locations where access to laboratory equipment and expertise is limited, such as farms and warehouses.
09:48
Fiber Optic Distributed Sensors for High-resolution Temperature Field Mapping
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Cited by 8 •
2016
We demonstrate use of a fiber optic distributed sensor for mapping the temperature field of mixing air jets. The Rayleigh scattering-based sensor generates thousands of data points along a single fiber to provide exceptional spatial resolution that is unattainable with traditional sensors such as thermocouples.
08:32
Development of Whispering Gallery Mode Polymeric Micro-optical Electric Field Sensors
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Cited by 7 •
2013
A high-sensitivity photonic micro sensor was developed for electric field detection. The sensor exploits the optical modes of a dielectric sphere. Changes in the external electric field perturb the sphere morphology leading to shifts in its optical modes. The electric field strength is measured by monitoring these optical shifts.
08:31
The Calibration and Use of Capacitance Sensors to Monitor Stem Water Content in Trees
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Cited by 31 •
2017
The hydraulic capacitance of biomass is a key component of the vegetation water budget, which serves as a buffer against short and long-term drought stresses. Here, we present a protocol for the calibration and use of soil moisture capacitance sensors to monitor water content in the stems of large trees.
08:46
Rapid Diagnosis of Avian Influenza Virus in Wild Birds: Use of a Portable rRT-PCR and Freeze-dried Reagents in the Field
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Cited by 20 •
2011
This study describes diagnosis of avian influenza in wild birds using a portable rRT-PCR system. The method takes advantage of freeze-dried reagents to screen wild birds in a non-laboratory setting, typical of an outbreak scenario. Use of molecular tools provides accurate and sensitive alternatives for rapid diagnosis.
FAQs
These components translate different water properties into measurable outputs. Electrodes respond to selected chemical or physical conditions, optical components detect changes associated with properties such as turbidity, and reagent-based assays generate electronic or visual signals related to contaminant concentration. The design therefore determines which indicators the instrument can measure and how results are presented to the user.
Available measurements may include pH, temperature, conductivity, turbidity, contaminant concentration, or biological indicators. This selection matters because each indicator describes a different aspect of water quality and supports different monitoring goals. A device designed for conductivity cannot automatically provide contaminant or biological measurements, so researchers must match the sensor’s capabilities to the environmental question.
Field measurement provides results at the sampling site, while laboratory testing depends on moving samples to a facility for analysis. The portable approach reduces reliance on laboratory infrastructure, sample transport, and potentially delayed results. Its main value is timely information for decisions in locations where laboratory facilities, power, or transport options are limited.
The sensing approach and instrument design determine the form of the result. Electrode and optical systems can convert detected properties into electronic signals, whereas reagent-based assays may produce an electronic or visual signal. This distinction affects how users receive information in the field and allows sensor designs to support different monitoring settings and analytical needs.
A field workflow begins by selecting the water-quality indicator relevant to the monitoring goal, then taking the measurement directly at the sampling site with an instrument designed for that indicator. The resulting electronic or visual signal is interpreted as the measured property or concentration. Researchers can then use the timely result to guide environmental decisions.
Researchers may choose portable sensing when they need rapid information across environmental locations or when laboratory access and sample transport are limited. Measurements can support pollution detection, drinking-water assessment, and watershed research by revealing relevant physical, chemical, or biological conditions at the site. Timely results help connect observations with decisions about the monitored water.