membrane
A diaphragm or membrane (about late Middle High German membrane , piece of parchment 'from latin membrane , pellicle') describes thin structures with different properties, such as a skin or foil have in relation to their thickness, a large-scale expansion. Often what is meant is a biaxially tensioned surface that has the ability to partition or vibrate , or a thin partition or envelope that has selective permeability .
biology
There are a wide variety of membranes in biology. Many structures are called membranes, especially at the cellular level. But also skin-like or separating structures are often so called, e.g. B. the field at the tip of the forewings in bed bugs .
technology
In technology, various products are called a membrane. They can act as a pressure or negative pressure membrane in the form of a force-transmitting seal. There are also vibration membranes in acoustics, for example on drums or loudspeakers . The combination of osmosis with filtration enables membrane technology , in which substances can be dynamically separated through a partially permeable, thin layer.
- Pressure membrane, technical membrane for conveying and pressure transmission
- Vibration membrane for generating acoustic vibrations
- Filter membranes , permeable layers for process separation
- Membrane (structural engineering) , foil as a supporting structure in construction. They are also used as a supporting structure in membrane structures
- Membrane tank, cargo tank for the transport of liquid gases on tankers
- Folded solar membrane , solar modules in facade construction
- Liquid membrane , see Emulsion # Multiple Emulsion
See also
- Membrane (separating layer) , separating layer in biology and technology
