A time pressure gauge is an instrument that digitally displays

pressure Pressure (symbol: ''p'' or ''P'') is the force applied perpendicular to the surface of an object per unit area over which that force is distributed. Gauge pressure (also spelled ''gage'' pressure)The preferred spelling varies by country and e ...

data divided into appropriate time intervals. While a

pressure gauge Pressure measurement is the measurement of an applied force by a fluid ( liquid or gas) on a surface. Pressure is typically measured in units of force per unit of surface area. Many techniques have been developed for the measurement of pres ...

indicates a general unit amount, only a time pressure gauge accounts for varying consumption and capacity in relation to time remaining.

Applications

Welders using

oxygen Oxygen is the chemical element with the symbol O and atomic number 8. It is a member of the chalcogen group in the periodic table, a highly reactive nonmetal, and an oxidizing agent that readily forms oxides with most elements as ...

and acetylene can plan more efficiently if they know the energy duration due to varying consumption in cutting techniques. A

nurse Nursing is a profession within the health care sector focused on the care of individuals, families, and communities so they may attain, maintain, or recover optimal health and quality of life. Nurses may be differentiated from other health c ...

concerned that a patient may run out of oxygen can monitor the workload more efficiently by knowing how much time is remaining rather that how much pressure is left.

Scuba divers This is a list of underwater divers whose exploits have made them notable. Underwater divers are people who take part in underwater diving activities – Underwater diving is practiced as part of an occupation, or for recreation, where t ...

could determine the length of time they could remain submerged. A pilot could manage supplemental oxygen flow rates of an

aircraft An aircraft is a vehicle that is able to fly by gaining support from the air. It counters the force of gravity by using either static lift or by using the dynamic lift of an airfoil, or in a few cases the downward thrust from jet engine ...

to determine possible

altitudes Altitude or height (also sometimes known as depth) is a distance measurement, usually in the vertical or "up" direction, between a reference datum and a point or object. The exact definition and reference datum varies according to the context ...

for maximizing fuel efficiency. Ultimately any activity that uses pressurized contents is applicable.

Safety

Using a time pressure gauge is also very valuable in dangerous scenarios. Imagine a firefighter inside of a burning building contemplating returning for oxygen or pressing further to the next room. He or she could understand both the time currently remaining, as well as time remaining if they altered their breathing pattern. A

pilot An aircraft pilot or aviator is a person who controls the flight of an aircraft by operating its directional flight controls. Some other aircrew members, such as navigators or flight engineers, are also considered aviators, because they a ...

could determine oxygen time remaining for descent in the event of a decompression. This information is highly important considering the multiple contingencies that arise in daily air travel (i.e. – consumption rates of oxygen per minute include multiple variables such as number of passengers and individual consumption rates).

Reducing carbon footprint

The use of a time pressure gauge provides for better planning with any instrument that emits

carbon Carbon () is a chemical element with the symbol C and atomic number 6. It is nonmetallic and tetravalent—its atom making four electrons available to form covalent chemical bonds. It belongs to group 14 of the periodic table. Carbon mak ...

gas through varying consumption rates determined by pressurized contents. Efficiency is maximized by understanding energy requirements in time. One such example would be something as simple as a gas grill. Operation of a gas grill with all burners on can observe tangible results (time reduction) by turning the gas control to low or by shutting off one burner. Seeing the increase in time will automatically indicate an increase in

energy saving Energy conservation is the effort to reduce wasteful energy consumption by using fewer energy services. This can be done by using energy more effectively (using less energy for continuous service) or changing one's behavior to use less service (f ...

. Most notably the time pressure gauge could reduce carbon emissions in all air travel through increased fuel efficiency, while also reducing fuel cost. Furthermore, recently the airline industry is under pressure to reduce carbon emissions globally,7 and instruments such as the time pressure gauge could spearhead this movement.

Current software technology

Time pressure gauge technology is relatively new, and not fully in widespread use. However, the

software Software is a set of computer programs and associated software documentation, documentation and data (computing), data. This is in contrast to Computer hardware, hardware, from which the system is built and which actually performs the work. ...

technology it uses is more integrated. A comprehensive oxygen planning program developed b
Aeronautical Data Systems Inc.
for the airline industry exists and is in use with over 20 corporate flight departments.

References

{{reflist #

# Gormley, Mal. "Converting Oxygen into fuel."''Business & Commercial Aviation'' June 1993:48. # Mack, Bill. "Planning for Decompression." ''Professional Pilot'' Sept. 1992:50. # Stabile, Jim. "Managing an Oxygen Contingency, Part One." ''The Lec Times'' Nov/Dec 2006. # Stabile, Jim/ Mack, Bill "Breathing Aloft." ''Professional Pilot'' May 2014
SAE A-10 Document AIR5648

SAE A-10 Document ARD5912BBC News Online
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