- Faraday Switches are tiny
one inch cube electronic modules that operate using a capacitance
change technique.
- Faraday Switches draw very
low current and are ideal for battery powered applications. The
FS3N
model has its own internal battery, which will last for about 10 years.
Model FS3X is externally powered.
- The
FS3N and
FS3X models
have a small total capacitance limitation and are best used for small
touch surfaces. The
QTFS3X and
QTFS3X-L
models can handle a higher
installed capacitance and should be used for large touch surfaces, such as
metal panels or metal sculptures.
- In the
FS3N and FS3X
models, the capacitance change threshold is adjustable using a multi-turn
pot that is an integral part of the module assembly. A one picofarad
(1pF) sensitivity is possible.
- In the
QTFS3X and QTFS3X-L
models, the capacitance threshold is automatically calibrated every 30
seconds and has a fixed sensitivity of about 6pF.
- All switch outputs are a
FET transistor that has a voltage rating of 30v and is capable of
switching 1 amp of current.
- Faraday Switches Models
FS3N and FS3X contain two switch outputs: a latched output,
which toggles the output on and off with each cap input activation and a
momentary output, which will remain activated as long as the
sensor input capacitance is higher than the level set by the module’s
adjustment screw.
- Faraday Switches
Models
QTFS3X and QTFS3X-L have
only a momentary output.
- The
QTFS3X-L
model is identical to the
QTFS3X
model but has an built-in LED indicator light.
- Other custom features are
possible with any of these switches.
Call for details.
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Six (6) Models now
available.
Project Photos |
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David A. Johnson, P.E.
Consulting Electronics Engineer
6601 County Road 6410 Lubbock, TX 79416-9717
Phone:
806-778-8407 Central Time Zone
email: dave@discovercircuits.com >>> DiscoverCircuits.com
Last Updated on:
22 November, 2021 02:42:39 PM |
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Copyright © 2000-2017 David Johnson. All rights reserved. Any trademarks are the
property of their respective owners. |
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