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#
5.11
Flexible Tongue (Labelled 2BGI, 8C(LT) 5*V)
The SSP has a flexible tongue along the front edge, which has fine copper tracks on both the topside
and underside of the tongue that are configured as two active arms of a bridge.
The strain on the tongue as the tongue is depressed can be read by the program. (Prog14.dxc)
BEGIN”Tongue_1”
RA500T
2BGI
END
The strain will increase from approximately 3500 to 3540 ppm as the tongue is fully depressed. The
strain on the tongue can be zeroed or tared as follows (Prog14.dxc)
BEGIN”Tongue_2”
2BGI(=1CV,W)
RA500T
2BGI(=2CV,W)
3CV(“Change =”)=2CV-1CV
END
The tongue also has a coil (in blue block) on its free end, immediately adjacent to a fixed coil (also in
blue block). When the coil on the tongue is energised, its magnetic field influences the fixed coil. If the
tongue is depressed then released smartly so that it vibrates, then these coils can be used as a
magnetic pickup to measure the vibration either as:
•
an analog frequency (Prog15.dxc)
BEGIN”Tongue_3”
RA500T
5*F
END
•
a digital count (Prog16.dxc)
BEGIN”Tongue_4”
RA500T
8C(LT,R)
END
Page
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Содержание DT800
Страница 1: ...DT800 Demonstration Sensor Simulation Panel Operating Instructions...
Страница 5: ...Fig 3 Fig 4 Closing the case Page 5...
Страница 6: ...Fig 5 Fig 6 Page 6...
Страница 7: ...Fig 7 Fig 8 Page 7...