Zobrazeno 1 - 10
of 249
pro vyhledávání: '"Frequency domain sensor"'
Publikováno v:
New Phytologist, 2015 Apr 01. 206(1), 471-481.
Externí odkaz:
https://www.jstor.org/stable/newphytologist.206.1.471
Autor:
Robert N. Dean
Publikováno v:
International Symposium on Microelectronics. 2017:000157-000162
Reliable, low-cost sensors are important for many applications, including agriculture, pollution monitoring and weather forecasting. Commercial printed circuit board technology is being used to develop simple sensors for these applications, where the
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6242c8a90a204d09ce5cfe8af3e5aa72
https://doi.org/10.4071/isom-2017-tp56_043
https://doi.org/10.4071/isom-2017-tp56_043
Publikováno v:
IEEE Transactions on Instrumentation and Measurement. 66:2181-2188
A novel open transverse-slot substrate-integrated waveguide sensor is presented. The sensor is designed and fabricated for dielectric measurements of sawdust at 8 GHz. Different configurations of the sensor were investigated by using simulation softw
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5d86b5d27d3d477996e3fa5aa2460cc5
https://doi.org/10.1109/tim.2017.2681358
https://doi.org/10.1109/tim.2017.2681358
Publikováno v:
Sensors and Actuators A: Physical. 263:246-251
An inductive salt solution concentration sensor is proposed in this paper. A planar sensing coil with a thin insulation covering layer, which was set at the bottom of the testing container for sensing purposes, was used as the sensor probe. The opera
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0567df89850797a9ac5e4ee674512126
https://doi.org/10.1016/j.sna.2017.05.043
https://doi.org/10.1016/j.sna.2017.05.043
Publikováno v:
Agricultural Water Management. 183:86-93
Frequency Domain Analysis is a well established technique in soil moisture determination, using the change in electrical capacitance of probes inserted into the soil caused by the presence of water. However it is known that temperature affects the de
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5a5b22061a2cb9f76e65b65e7f0ddcb1
https://doi.org/10.1016/j.agwat.2016.11.002
https://doi.org/10.1016/j.agwat.2016.11.002
Publikováno v:
Agricultural Water Management. 183:41-48
Frequency Domain Analysis can be used to determine the moisture content of soils. At least two techniques can be used, the first using the soil capacitance as part of a low pass filter, measuring the attenuation of a fixed frequency signal, the secon
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6e952c08e57859b0ffdd07f003b759df
https://doi.org/10.1016/j.agwat.2016.12.002
https://doi.org/10.1016/j.agwat.2016.12.002
Publikováno v:
Computers and Electronics in Agriculture. 133:22-29
Novel laboratory capacitor was developed.Detailed information on the influence of frequency on capacitive throughput sensor function is provided.The sensor was less sensitive to material moisture content changes at lower frequencies.The sensor was al
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69a4794e01ec897080f5e57a74d8fbe1
https://doi.org/10.1016/j.compag.2016.12.014
https://doi.org/10.1016/j.compag.2016.12.014
Publikováno v:
Sensor Review. 37:43-53
Purpose Magnetic permeability variations of ferromagnetic materials under elastic stress offer the potential to monitor tension based on the inverse magnetostrictive effect. The purpose of this paper is to propose an innovative self-inductance tensio
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::10438a0ef1f7393843f4300e654ec4c5
https://doi.org/10.1108/sr-08-2016-0145
https://doi.org/10.1108/sr-08-2016-0145
Publikováno v:
Agricultural Research. 6:97-102
Path loss models are used to estimate the path loss between transmitter and receiver in applications that involve transmission of electromagnetic waves. This paper describes the wireless underground sensor networks, which communicates within the soil
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0939dc66dbe3c22ccd5b13b9ca2cbc0e
https://doi.org/10.1007/s40003-016-0239-1
https://doi.org/10.1007/s40003-016-0239-1
Publikováno v:
Measurement. 94:119-125
This paper proposes a modified microstrip ring resonator sensor with four-legged element structure design for microwave soil aquametry application. Dielectric prediction based on different moisture content, m.c. for measurement of peat and sand soils
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::1fa053ac1ccfcfc68c76f261173b7702
https://doi.org/10.1016/j.measurement.2016.07.046
https://doi.org/10.1016/j.measurement.2016.07.046