trioin.blogg.se - Raising the pipe in the overflow at fieldlines

Raising the pipe in the overflow at fieldlines pdf#

230000002262 irrigation Effects 0.000 title abstract description 6.

JASON, SCHLATTER, RONALD GENE Publication of US20080205987A1 publication Critical patent/US20080205987A1/en Application granted granted Critical Publication of US7857546B2 publication Critical patent/US7857546B2/en Status Expired - Fee Related legal-status Critical Current Adjusted expiration legal-status Critical Links Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Priority to US90368707P priority Critical Application filed by Brian Scott Furrer filed Critical Brian Scott Furrer Priority to US12/033,121 priority patent/US7857546B2/en Assigned to FURRER, BRIAN SCOTT reassignment FURRER, BRIAN SCOTT ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Jason Furrer Original Assignee Brian Scott Furrer Priority date (The priority date is an assumption and is not a legal conclusion. ( en Inventor Brian Scott Furrer Ronald Gene Schlatter G. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Granted Application number US12/033,121 Other versions US7857546B2

Raising the pipe in the overflow at fieldlines pdf#

Google Patents Method and apparatus for controlling drainage and irrigation of fieldsĭownload PDF Info Publication number US20080205987A1 US20080205987A1 US12/033,121 US3312108A US2008205987A1 US 20080205987 A1 US20080205987 A1 US 20080205987A1 US 3312108 A US3312108 A US 3312108A US 2008205987 A1 US2008205987 A1 US 2008205987A1 Authority US United States Prior art keywords valve level water elevations responsive Prior art date Legal status (The legal status is an assumption and is not a legal conclusion.

Google Patents US20080205987A1 - Method and apparatus for controlling drainage and irrigation of fields All the EM field lines will be pulled closer, not just the ones near the receive antenna ferrite core.US20080205987A1 - Method and apparatus for controlling drainage and irrigation of fields If you are wondering where the "added" power comes from, consider it stolen, not from nearby receive antennas, but from the transmitter's antenna, due to more efficient inductive coupling between the two stations. Here's an example of one by Kaito, a "Tunable Passive AM Radio Loop Antenna", but there are other vendors of similar products: You merely put a tuned passive loop antenna near your small receiver's internal antenna to increase the received signal level. There are inductor coil antenna products that take advantage of this. All nearby EM field lines (in the entire neighborhood) will be distorted towards the loop inductor and/or volume of higher relative permeability. The magnetic field concentration caused by a multi-turn loop inductance, whether with a ferrite core or not, concentrates the EM field lines not only inside the loops of the coil, but in the total virtual aperture area or volume nearby. However, a parasitic loop can often increase the power to a nearby small radio antenna, rather than steal (or "zap") power. Pointed in the "wrong" direction, the director and reflector elements will reduce the EM power that the driven element receives from the impinging RF field. Nearby antenna elements do affect each other. If you were to optimize for this energy capture, perhaps putting this antenna very close to the transmitting antenna with the objective of capturing all the transmitted power such that nothing else can receive it, you will have made a transformer.

It does require that the antenna be terminated in a load that will convert the electromagnetic energy to another form, such as a resistor converts electrical energy to heat. I don't know what "literally zap" means, but yes, any antenna can absorb electromagnetic energy from the space around it, making that energy unavailable for other receivers. If I place another radio next to it, will it literally zap half the power from the other radio? This has the same effect as making the loop physically bigger (neglecting losses in the ferrite, which aren't large at AM broadcast frequencies). Now if I imagine the coil without the ferrite but I multiply the area by 1000, that will be a huge area, how can it be 1000 times more power?īecause, as the article says, the magnetic permeability of the ferrite rod is much higher than that of air, and thus it concentrates the magnetic flux from a large area around the antenna.