coupler


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coupler

[′kəp·lər]
(electricity)
A component used to transfer energy from one circuit to another.
(electromagnetism)
A passage which joins two cavities or waveguides, allowing them to exchange energy.
A passage which joins the ends of two waveguides, whose cross section changes continuously from that of one to that of the other.
(engineering)
A device that connects two railroad cars.
(graphic arts)
A substance that can react with the unexposed diazonium salt in a diazo material to produce the visible dye image.
(navigation)
The portion of a navigation system that receives signals of one type from a sensor and transmits signals of a different type to an actuator.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.

coupler

A metal hardware device used to join frames and braces of tubular metal scaffolding.
McGraw-Hill Dictionary of Architecture and Construction. Copyright © 2003 by McGraw-Hill Companies, Inc.

coupler

A device that connects one thing to another. See plugs and sockets and network coupler.
Copyright © 1981-2019 by The Computer Language Company Inc. All Rights reserved. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction is strictly prohibited without permission from the publisher.
References in periodicals archive ?
The MAG Couplers are cheap, ranging from a whopping $9.99 all the way up to a mortgage-shaking $10.99.
To analyse coupler force characteristics in heavy haul trains during braking, simulations were made on coupler forces in 10,000-tonne trains with normal configuration in China.
With the pin grabber coupler, the operator can operate the bucket in both the normal position and in the reverse position, without any modification or extra components, for greater operational flexibility.
The S-parameter was measured for four ports in the three types of coupler. For accurate measurement, the isolated ports 5 and 6 were terminated.
Characterizations on Coupler 1 which has bending radius pair of 25 mm-25 mm, Coupler 2 with bending radius of 30 mm-40 mm, Coupler 3 with bending radius of 35 mm-27 mm, Coupler 4 with bending radius of 30 mm-20 mm and Coupler 5 with bending radius of 52 mm-40 mm are constructed to each of the coupler with same post-etch diameter thickness of 0.95 mm for both fibers.
For the center with 1550 nm wavelength, the coupling efficiency is 40.92% with a 3 dB bandwidth of 72 nm, which overcomes the problem that the coupling bandwidth becomes narrower as the length of grating coupler increases, and on this occasion, the losses in the reflection, transmission to the Si[O.sub.2] layer, and the coupling to the opposite direction are 45.30%, 6.27%, and 3.16%, respectively, with the losses of 4.35% in the free area.
The original thickness of the upper coupler plate is .375 inches.
The schematic diagram of the proposed dual-band planar asymmetric branch-line coupler terminated by arbitrary real impedances for arbitrary coupling levels is illustrated in Fig.
When n is bigger than 2.3, theoretically the coupler provides over 20 dB harmonic rejection.
A conventional branch line coupler is based on four quarter wavelength transmission lines which are composed of low impedance series arm of 35.35 [ohm] and high impedance shunt arm of 50 [ohm].
For smaller boats, hydraulic surge brakes work well but as the weight of the boat increases, so does the "clunk factor." Here's how surge brakes work: When you apply the brakes in the tow vehicle, the trailer travels freely forward, applying pressure to the brake coupler. The coupler houses a small master cylinder, similar to the manual brakes on older cars.