In addition to a thermostat, a barostat is needed.

A barostat is a device used to maintain constant pressure in a closed chamber.

A barostat is a frequently used tool in clinical neurogastroenterology research.

The advantage of pressure and volume relations seems more obvious in globular organs such as the bladder and the stomach by use of a barostat.

Gas turbine Barostat fuel supply systems for jet engines, in conjunction with Sir Frank Whittle.

An extremely accurate high pressure Barostat is also used as a pressure regulator in competition specification precharged pneumatic air rifles and pistols.

Moreover, the application of the barostat to long term recordings of colonic motility, may prove useful to assess other pathopysiological aspects of functional colonic disorders.

This problem can arise in explicit solvent under unusual circumstances, particularly when the Berendsen barostat is used or when the simulation parameters do not respect conservation of energy, but the artifact occurs most visibly in simulations in vacuum.