Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 12 of 12 for “"moisture sensor"”.
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Low-Cost Grain Bin Moisture Sensor Using Multiple Capacitive Elements
… and therefore a need for a reasonable cost sensor to continuously monitor the moisture inside the bins. Historically, moderately expensive capacitance based instruments have been used to measure grain moisture samples to an accuracy of ±0.1% w.b. However, these moisture meters only work …
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Irrigation management effects on nitrate leaching and mowing requirements of tall fescue
… regardless of weather conditions; and 2) soil moisture sensor (SMS)--based irrigation, 34 mm of water was applied when soil dried to a predetermined threshold. In the first experiment, sub-plots consisted of unfertilized turf, and N applied as urea or polymer-coated urea at 122 and 244 kg ha⁻¹ …
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Using Geophysics and Terrestrial LiDAR to Assess Stormwater Parameters in Vacant Lots in Philadelphia
… LiDAR, ground penetrating radar, soil moisture sensor, surface compaction, and double ring and mini disk infiltrometer measurements. These data were used to establish what controls infiltration rates in the area and also provide input parameters for a SWMM model. A terrestrial LiDAR …
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Moisture measurements in concrete and characterization using impedance spectroscopy and RC network circuits
The importance of moisture in concrete is unquestionable. However, quantifying the moisture in concrete is very difficult as concrete microstructure water interactions are not well understood. Concrete is a very complex material spanning the range from the atom to the civil infrastructure. It is …
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The effects of grass and rainfall pattern on the matric suction of acidic soil slopes
… suction of soil at a depth of 20 cm by a soil moisture sensor. This research investigate the variations in matric suction profiles under a loose and compact soil condition, treated and untreated dolomite, bare plot and a grassed surface in acidic soil slopes response to rainfalls pattern. The …
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Accuracy of hay moisture sensing systems for round alfalfa bales
Moisture measurement is critical when baling alfalfa into round bales for feed. If alfalfa is too wet or too dry, it can greatly diminish the alfalfa crop’s feed quality and cause economic loss to producers. Therefore, monitoring of alfalfa moisture content while baling is critical for producers to …
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Faulty sensor detection using data correlation of multivariant sensor reading in smart agriculture with IOT
… and consume information radically. Through sensor networks, agriculture can be connected to the IoT, which allows us to create connections among agronomists, farmers and crops regardless of their geographical differences. On the other hand, Sensor fault is critical in smart grids, where …
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Improving Soil Moisture Assessment of Turfgrass Systems Utilizing Field Radiometry
… using time-domain reflectometer (TDR) soil moisture sensors can decrease water usage. Still, TDR measurements are time-consuming and only cover small scales, leading to many locations being unsampled. Remotely sensed data such as the normalized difference vegetation index (NDVI) offer the …
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Gas-phase biofiltration for livestock building ammonia emission mitigation
… efficiency, and also to examine the effect of moisture on nitrous oxide generation. Besides that, a moisture sensor was developed to control the moisture content in biofilter media in order to achieve high ammonia removal efficiency and low nitrous oxide generation. Biofilter media selection …
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Impedance-based moisture content sensor assessment for gas-phase biofilters
… of mitigating airborne ammonia efficiently. The moisture content (MC) of the biofilter media is important to determine ammonia mitigation and nitrous oxide generation. It is critical to monitor real-time moisture content of the biofilter media for maintaining biofilter performance. The objectives …
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IoT WiFi sensor vlhkosti půdy a teploty
Bakalárska práca sa zaoberá problematikou návrhu IoT WiFi senzora vlhkosti pôdy, vzduchu a teploty. Pre navrhnuté zariadenie sa predpokladá možnosť jednoduchého prenosu zariadenia, nízka spotreba a zabezpečená komunikácie. V teoretickej časti práce sú popísané vybrané typy senzorov a ich …