attenuator

(redirected from attenuators)
Also found in: Dictionary, Thesaurus, Medical.

attenuator

[ə′ten·yə‚wād·ər]
(electronics)
An adjustable or fixed transducer for reducing the amplitude of a wave without introducing appreciable distortion.

sound attenuator

In ductwork, a device (usually prefabricated) especially designed to provide much greater sound attenuation than would be provided by an equal length of ductwork; the pressure drop through the device is greater than for an equal length of ductwork.
References in periodicals archive ?
"The use of variable optical attenuators (VOAs) with DWDM, ROADM, optical switching, and various other applications is contributing to the steady increase of this particular component," said Stephen Montgomery, Director of the Fiber Optics group at ElectroniCast.
This article describes the design process of the impact attenuator with lightweight materials to satisfy the required weight reduction targets for Formula SAE racing car.
Feeding network complexity Separate excitation Array patterns without sharing, 0% Sharing percentage, 20% Number of Peak SLL Number of Peak SLL attenuators (dB) attenuators (dB) Sum pattern N -24 N-N/4 -22 Difference pattern N -24 N -24 Total number 2N -- 2N-N/4 -- of attenuators Feeding network complexity Array patterns Sharing percentage, 50% Sharing percentage, 80% Number of Peak SLL Number of Peak SLL attenuators (dB) attenuators (dB) Sum pattern N-N/2 -16 N-3N/4 -15 Difference pattern N -24 N -24 Total number 2N-N/2 -- 2N-3N/4 -- of attenuators
Engineers often use this type variable attenuator when they are designing a system and are testing their design concepts in the lab.
Based on the optic and clear aperture of the high performance 918D series detectors, the new attenuator design features a clear aperture with the size reduced to 10mm to help the user align the detector to the input optical beam more accurately.
Key words: attenuator; beamsplitter; calorimeter; device under test; high-power laser; infrared (IR); laser detector calibration; laser power meter; monitor detector; reflective optical chopper; wedge-shaped transparent material; visible aiming laser; ZnSe.
A balanced attenuator is a broadband design consisting of four Lange couplers, two of which form complementary reflective attenuators for cancellation of the PHEMT capacitance (see Figure 3).
In the field, operation of these new noise-source treatment attenuators has been very quiet.
The operations manager for In-Line Traffic Marking Company's advocacy of truck-mounted attenuators saved the lives of two of the company's workers several years ago.
[USPRwire, Tue Aug 06 2019] Fibre Optic Attenuator Market: Market Overview Fibre optic attenuators are electronic devices that primarily lower and reduce the amplitude of an electronic signal.
Summary: Fibre optic attenuators are electronic devices that primarily lower and reduce the amplitude of an electronic signal.