aspects of physics

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Aspects of Physics                                                                                                Page

Aspects of Physics in the Grove leisure Centre

Automatic door system

Pool lighting

Purpose of each one

Automatic door system

The purpose is for the doors to open automatically when anyone is a certain distance from the door. The distance should be right for when they are walking up to the door so it has enough time to open when the person is close enough to go through it.

 The automatic door is needed for disabled access as it is a legal requirement. The grove has had them since the year 2000 because legal reasons state that all public places have to have access for disabled people.

It makes it a lot easier for school parties, so the teacher doesn’t have to hold the door so they can make sure the children at the front of the queue are looked after and not left unattended.

Some people who are medically referred to the leisure centre by their doctors might be very weak and wouldn’t be able to open a door, so an automatic door overcomes this problem.

Another helpful thing is that the doors will not be left open in winter time, and therefore will not let heat out, which in turn will save money as the building will not need excess heating because heat is being lost.

Pool Lighting

The lights are not located directly above the swimming pool, the main reason for this is that it would be extremely hard to fix and change them; another reason is that if the lights were directly above the pool then condensation would cause the lights to break.

This helps to spot any foreign object in the pool, as if there was a dark pool they not be spotted and if there was someone under water drowning it would make it harder for the lifeguard to spot them the less light there is.

Also simply to help people to see when they are swimming on the surface or underwater as the more light there is it makes it clearer to see.

The above diagram shows a light beam coming from lights set in the floor travelling upwards and reflecting at a 90º angle to another reflecting surface, and then it does another reflection at 90º down to the pool.

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The above diagram shows a light ray reflecting and how it does it, this is what the ray does in the pool lighting system.

How the automatic door system works

The doors work by using a passive infrared detector (P.I.R)

They call it passive as it only receives infrared waves of a certain frequency and it doesn’t emit any. Infrared rays are rays that are emitted by any object which is warmer than ...

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