damper


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damper

1. a movable plate to regulate the draught in a stove or furnace flue
2. a device to reduce electronic, mechanical, acoustic, or aerodynamic oscillations in a system
3. Music the pad in a piano or harpsichord that deadens the vibration of each string as its key is released

Damper

An adjustable metal plate inside a flue or air duct, which regulates the draft of a stove, fireplace, or furnace, or controls the flow of air inside a duct; operates automatically in the event of a fire to close off the duct.

Damper

 

a device for extinguishing or attenuating (damping) oscillations or preventing mechanical vibrations that occur during the operation of machines and instruments. Hydraulic and pneumatic dampers are used in automatic regulators and measuring instruments, and dampers in the form of inductance coils are used in electrical machines. The devices used to stop the vibration of the strings in multistring musical instruments are also called dampers; they consist of individual blocks (in a piano) or pads (in a harp) with felt cemented to them.

damper

[′dam·pər]
(electronics)
A diode used in the horizontal deflection circuit of a television receiver to make the sawtooth deflection current decrease smoothly to zero instead of oscillating at zero; the diode conducts each time the polarity is reversed by a current swing below zero.
(mechanical engineering)
A valve or movable plate for regulating the flow of air or the draft in a stove, furnace, or fireplace.

damper

butterfly damper, 1
damper, 1
1. A device used to vary the volume of air passing through an air outlet, inlet, or duct; it does not significantly affect the shape of the delivery pattern.
2. A pivoted cast-iron plate at fireplace throat, i.e., between fireplace and smoke chamber, to regulate draft.
3. Same as fireplace damper.
References in periodicals archive ?
After the Superheat and Reheat pass dampers would freeze up and we couldn't control our temperatures with damper control, we would use our Superheat sprays to control superheat temperatures and Reheat sprays to control Reheat temperatures.
The Flowguard Damper is equally effective in curing many of the problems occurring in suction lines, namely cavitation due to acceleration head losses in the suction pipework causing the NPSH available to fall below the value required for the pump.
Today, 20 hotels and office towers in Japan, 14 of them more than 26 stories tall, use hybrid mass dampers.
The first book on optimal design, sizing, and location selection of passive dampers
The new Adaptive Damper System features three settings, comfort, normal and dynamic.
The dependencies of damper resistance force versus displacement, velocity and strength of the magnetic field are presented in Fig.
In the case of a fresh air damper stuck, two cases are compared.
Sustained temperatures at or below 0[degrees]F result in a significantly high number of steering damper failures.
Buick's compelling midsize sedan offers the CDC electronic damper system, which offers continuously changing damper characteristics to maintain optimal vehicle ride control over varying road surfaces.
Considered a leader in the Fire Safety Industry, Life Safety Services' has made a commitment to Commercial Facilities to provide specialized fire and smoke damper inspections of the highest quality to ensure compliance with NFPA's critical Life Safety Code[R].
Steady state values from all measurements were used to create static characteristic of damper.
While the KUH tail rotor damper is made of a customized elastomer and metal assembly, the main and tail rotor spherical bearings are made of high-capacity laminate (HCL), a technology which LORD was first to apply to helicopters to replace mechanical bearings in order to provide better vibration control and to reduce the number of parts.