Differences

This shows you the differences between two versions of the page.

--- projects:a4sim:componentinventory:rectilinearpotentiometer [2019/10/19 13:31]
dwheele created
+++ projects:a4sim:componentinventory:rectilinearpotentiometer [2020/02/22 17:07] (current)
admin ↷ Links adapted because of a move operation
@@ Line 4: / Line 4: @@
 To detect the position, each has a "Rectilinear Potentiometer." This is a linear sliding potentiometer with 6 electrical connections instead of the usual 3.
+{{a4sim:componentinventory:20191019_061816.jpg?200 |}}
+{{a4sim:componentinventory:rectilinearpot2.jpg?200 |}}
+{{a4sim:componentinventory:20191019_061753.jpg?600|}}
+Disassembled to make sure wiper was connecting well. Looks good inside, lightly lubricated. Measured resistance between connection pins. With the exception of the "S" connection, which connects to a metal strip which is ridden by the wiper, the connections just connect to a continuous resistive strip. I don't need it for this application, but the rudder for example, could use the CT as the center.
+^Terminal^From - (Minus) Ohms^
+^-|0|
+^1|1.6K|
+^CT (center tap?)|6.4K|
+^2|10.4K|
+^+|12.1K|
+The "S" terminal must be "Slider" which is connected to the Wiper.
+The normal connections to use with Arduino DAC would be:
+^-|Ground|
+^S|DAC Input|
+^+|Vcc or 5V|
+/19/2019

Dan's Wiki