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Alignment though two mirrors
9. Follow instruction 1-4
10. A second person must adjust
the position of the first mirror to the left
and to the right until the entire length of the second mirror is
reflected in the first mirror. If difficulties are experienced in seeing
the reflection on the second mirror in the first mirror then use a
piece of white paper cut to size and position in front of the second
mirror.
11. If the reflection of the white paper is difficult to see in the first mirror
then employ a third person to hold a flashlight in front of the second
mirror with the light beam pointing directly in line with its mirror
housing towards the first mirror. Secure the first mirror.
12. Again follow instructions 1 to 4.
13. The second person must adjust the position of the second mirror to
the left and to the right until the entire length of the transmitter unit
is reflected through both the first mirror and the second mirror. If
difficulties are experienced in seeing the reflection of the transmitter
unit through both the first then the second mirrors then use a piece
of white paper cut to size and position in front of the transmitter unit.
14. If the reflection of the white paper is still difficult to see through the
first and second mirrors then employ a third person to hold a
flashlight in front of the transmitter unit with the light beam pointing
directly towards the second mirror. Secure the second mirror.
15. Ensure the mirrors are directly aligned thus enabling the infra red
beams of the transmitter to reach the receiver. Alternatively,
fabricate mirror mountings to include some form of adjustment to
enable movement both left and right and also forwards and
backwards from the central axis of each mirror.
APPENDIX 2
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Summary of Contents for 072-150
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