vol.276 January 2024
Highly sensitive capacitance type touch sensor that operates with just a light touch
One of the challenges when considering capacitance-type touch sensors is the difficulty of design. OMRON's capacitance type touch sensor W7ED can be easily designed by simply fixing the touch sensor electrode to the touch component with screws, allowing you to configure a touch sensor that meets your application.
Easy connection with no design required
This sensor can be used in a wide range of applications due to its open collector output, making it ideal for embedded applications. By using the FG terminal, it is easy to prevent static electricity from entering the electrodes from the human body.
Application examples (blue areas are conductive touch components)
Handrail
Application: Nursing care, monitoring
Doorknob
Application: Access control system
Touch light
Application: Light on/off operation
Vision testing device
Application: Automated inspection
W7ED Features
No design required
No sensitivity adjustment or circuit design is required, contributing to a reduction in development man-hours.
High sensitivity
Captures changes in capacitance of the touch component from contact with human body with high sensitivity.
Easy connection
Just fix the touch component and the touch sensor. Touch sensors can be easily configured without the need for a dedicated printed circuit board.
W7ED Lineup
Power supply voltage 5 to 15 VDC compatible
I-shaped electrode type
FG terminal: No
W7ED-11F
FG terminal: Yes
W7ED-12F
L-shaped electrode type
FG terminal: No
W7ED-11L
FG terminal: Yes
W7ED-12L
Why is an electrically conductive material used as a switch in OMRON's touch sensor W7ED?
Because it detects the change in capacitance when a person touches it and uses it as the starting point for signal output.
When a person touches the metal electrode, the capacitance between the electrode and ground changes, and this change outputs an ON/OFF signal.
* Contents as of December 2023.
In the interest of product improvement, specifications are subject to change without notice
