• Diaphragm (optics), a stop in the light path of a lens, having an aperture that regulates the amount of light that passes • Diaphragm (acoustics), a thin, semi-rigid membrane that vibrates to produce or transmit sound waves • Diaphragm (birth control), a small rubber dome placed in the vagina to wall off the cervix, thus preventing sperm from entering WebShutter (photography) Tools. An early (1875) rapid acting shutter by A. A. Pearson of Leeds. In photography, a shutter is a device that allows light to pass for a determined period, exposing photographic film or a photosensitive digital sensor to light in order to capture a permanent image of a scene. A shutter can also be used to allow pulses ...
Diaphragm (mechanical device) - Air.Wiki
WebShear pins as safeguards. In the role of a mechanical safeguard, a shear pin is a safety device designed to shear in the case of a mechanical overload, preventing other, more expensive or less-easily replaced parts from being damaged. As a mechanical sacrificial part, it is analogous to an electric fuse.. They are most commonly used in drive trains, … WebPressure relief. Excess pressure is relieved by allowing the pressurized fluid to flow from an auxiliary passage out of the system. The relief valve is designed or set to open at a predetermined set pressure to protect pressure vessels and other equipment from being subjected to pressures that exceed their design limits. When the set pressure is … software voltura 2.0 download
Thermal expansion valve - Wikipedia
WebA control valve is a valve used to control fluid flow by varying the size of the flow passage as directed by a signal from a controller. [1] This enables the direct control of flow rate and the consequential control of process quantities such as pressure, temperature, and liquid level. In automatic control terminology, a control valve is termed ... WebApr 1, 2024 · diaphragm (plural diaphragms) In mammals, a sheet of muscle separating the thorax from the abdomen, contracted and relaxed in respiration to draw air into and expel air from the lungs; also called … WebAs the diaphragms expand and contract, levers connected to cranks convert the linear motion of the diaphragms into rotary motion of a crank shaft which serves as the primary flow element. This shaft can drive an odometer -like counter mechanism or it can produce electrical pulses for a flow computer . slow release weed and feed fertilizer