What Wavelength do the IR Emitters and Receivers use? Can the Emitters be Used to Transmit Signals Through the Plastic Walls of a Chamber?
Purpose
The IR emitter’s wavelength is outlined in this article as well as suggested materials to use to allow the transmission of signals between the emitter and receiver.
Solution
The IR emitters have a wavelength of 940nm. Polycarbonate is generally transparent at this wavelength: the signal can pass through several standard transparent mouse home cages so long as there are no obstructions between the emitter and the animal. Opaque barriers should be placed between chambers if they should not be receiving the same pulse trains at the same time.
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