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What is the function of a relay valve or splitter valve in an air brake system?
Relay valves are used to reduce the lag time when the brakes are applied, and when they are released. They are remote controlled air valves that respond to a con trol signal from the foot valve. They are usually mount ed on a frame rail close to the air chambers that they are to operate.
A time lag between left and right auditory stimulation is important for accurately?
locating sounds
What causes shutter lag?
In a mechanical shutter it is the time that it takes for the mechanical components to mesh and begin the movement of the shutter blades. These components must also build up the forces necessary to move against the springs that hold the blades in the closed position. This build up of forces takes some finite amount of time to overcome, hence a lag time. Then, depending on mass of the shutter blades there is a finite time it takes for the blades to move to the open position. This is due to inertia. (Inertia is the property of matter by which it retains its state of rest or its velocity along a straight line so long as it is not acted upon by an external force.) In an electro-mechanical shutter additional lag times are provided by the inductance of the actuating mechanisms, (usually some electro-magnetic actuator). In these cases the time it takes for the actuator to build up the energy necessary to be able to overcome the "at rest" forces causes additional lag. Shutter lag is a property that shutter manufacturers work very hard to reduce to a minimum required duration. ****************** While technically correct, shutter lag in a modern non-digital SLR is virtually undetectable. The questioner was probably referring to the lag time of a non-SLR digital camera, which as most people have observed, can be a pain in the butt. The answer in that respect is that the lag is due to the time it takes the image to be converted to digital information. High priced digital SLRs have much less lag as their processing time is much shorter. The trade-off is the dent it puts in your wallet. Micron.
What wood drill bit size would I use for one quarter inch diameter lag screw into 2 pieces 1 AND HALF inch width wood board?
A 3/16 drill bit.
When mounting a meter base to a pole what kind of bracket do you use?
I generally use four pieces of "unistrut" to make a mounting bracket. I attach the unistrut to the pole using either lag screws or strap. It needs to be secure.
