Quote:
Originally Posted by Phreadumb
Actually, a metallic surface reduces Electromagnetic Interference.
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Actually, aluminum isn't as good as materials containing iron, nickel and a few others. However, it is as good as any metal at conducting static charge/discharge. Sometimes the offending signal passes through a device, reflects off the metal and returns through the device. Sometimes the whole shooting match acts as an antenna and that could be good or bad depending on if you wanted an antenna.
Let me reiterate, the Crio and the camera both have their chassis connected to the negative terminal of the battery through the power cable. Both need to be insulated from the robot frame.
<R43> All wiring and electrical devices, including all control system components, shall be electrically isolated from the ROBOT frame. The ROBOT frame must not be used to carry electrical current (e.g. this is necessary due to polarity reversals that occur under certain operating conditions such as during motor direction reversals).