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In mechanics, a diaphragm is a sheet of a semi-flexible material anchored at its periphery and most often round in shape. It serves either as a barrier between two chambers, moving slightly up into one chamber or down into the other depending on differences in pressure, or as a device that vibrates when certain frequencies are applied to it.
On the other hand, rigid diaphragms transfer load to frames or shear walls depending on their flexibility and their location in the structure. Diaphragms that cannot be classified as either flexible or rigid are referred to as semirigid. [1] The flexibility of a diaphragm affects the distribution of lateral forces to the vertical components of ...
Diaphragm valves (or membrane valves) consists of a valve body with two or more ports, a flexible diaphragm, and a "weir or saddle" or seat upon which the diaphragm closes the valve. The valve body may be constructed from plastic , metal or other materials depending on the intended use.
The basic working principle of an air-operated double diaphragm pump. Cross-section sketch of diaphragm fuel pump Air-operated double diaphragm pump. A diaphragm pump (also known as a Membrane pump) is a positive displacement pump that uses a combination of the reciprocating action of a rubber, thermoplastic or teflon diaphragm and suitable valves on either side of the diaphragm (check valve ...
Diaphragm (birth control), a small rubber dome placed in the vagina to wall off the cervix, thus preventing sperm from entering; Diaphragm (mechanical device), a sheet of a semi-flexible material anchored at its periphery; Diaphragm (structural system), a structural engineering system used to resist lateral loads
For adults, 20 Fr to 40 Fr (6.7 to 13.3mm external diameter) are commonly used, and 6 Fr to 26 Fr for children. Conventional chest tubes feature multiple drainage fenestrations in the section of the tube which resides inside the patient, as well as distance markers along the length of the tube, and a radiopaque stripe which outlines the first ...
A diaphragm compressor is a variant of the classic reciprocating compressor with backup and piston rings and rod seal. The compression of gas occurs by means of a flexible membrane, instead of an intake element. The back and forth moving membrane is driven by a rod and a crankshaft mechanism.
An example of a diaphragm seal (in green) used to protect a pressure sensor. In mechanical engineering , a diaphragm seal is a flexible substance that seals and isolates an enclosure. The flexible nature of this seal allows pressure effects to cross the barrier but not the material being contained.