The Series 293 Joystick Encoder
The series 293 joystick encoder is a new, multi-function solution from CTS Corporation that combines a 4-directional joystick with an optical encoder and a pushbutton switch for a robust and cost-effective control unit. This three-in-one device can be employed throughout numerous medical, industrial and commercial applications, offering full, single-hand control of e.g., medical scanning equipment, factory handling control units and drone remote controllers.
Simple, Applicable, Reliable
The ability to reliably control and steer electronic equipment and tools is an ever-present necessity throughout multiple markets and industries. Both manual and semi-automatic applications of all kinds require a dependable means of control, allowing operators to easily input commands in order to steer the movement of the systems in question.
The series 293 joystick encoder from CTS Corporation provides equipment operators with an ideal solution for simple and reliable system control at a competitive price point. Combining a four directional joystick with an optical encoder and an integrated pushbutton switch, the series 293 joystick encoder grants all the control functionality needed to efficiently operate a large number of electronic systems and tools such as medical scanners, robotic arms and various remote-controlled vehicles and devices. And as an integrated, three-in-one solution, the series 293 only requires one hand for control inputs, offering easy of operation and broad applicability.
How Does It Work?
The series 293 consists of a joystick, an optical encoder and a pushbutton switch.
The joystick features four momentary tactile switches that enable system movement in four directions across the X and Y axes. For many applications, four directions are more than enough for proper operation. Adding more directions will often lead to over-specification, resulting in redundant functionality, more complicated operation and a higher rate of failure. With an operational lifespan of upwards of 500k activations, long-lasting performances are guaranteed.
Built into the series 293 is an optical encoder that can be turned to a total of 20 positions with five pulses per revolution. The encoder allows for additional position adjustment or other functionalities such as zooming in and out. The operational lifespan of the encoder exceeds 1M cycles thanks to its optical design with no mechanical contact.
The series 293 joystick also features a momentary pushbutton switch which can be activated by pressing down on the joystick shaft. This functionality is ideal for initiating various system commands, e.g., executing scans or imaging. The robust mechanical design of the pushbutton switch ensures its longevity with up 1M activations.
| Series 293 Three-in-One Joystick Encoder |
| Size |
Termination |
Operating Temperature |
Storage Temperature |
Output Signal (Neutral) |
| 25.4 mm (Ø) |
Connector / 50mm Wire w. Connector |
-40ºC to 85ºC |
-50ºC to 95ºC |
2.5 VDC |
| Series 293 Joystick |
| Directions |
Angle of Throw |
Operation Force |
Operational Life |
Input Current |
Output Signal (Neutral) |
| 4 |
8º |
150 gf |
500k Activations |
5 mA |
2.5 VDC |
| Series 293 Optical Encoder |
| Positions |
Pulses per Revolution |
Rotational Torque |
Rotational Life |
Input Voltage |
Input Current |
Power Consumption |
| 20 |
5 |
100 gf • cm |
1M Cycles |
5 VDC |
≤ 20 mA |
100 mW |
| Series 293 Pushbutton Switch |
| Operation Force |
Shaft Travel |
Power Rating |
Contact Resistance |
Contact Bouncing (Make) |
Contact Bouncing (Break) |
| 350 gf (±150) |
0.5 mm |
10 mA |
10 Ω |
4 ms |
10 ms |
Series 293 Product Page
Ideal Applications for the Series 293 Joystick Encoders
Medical Equipment
The functionality offered by the series 293 joystick encoder makes it an ideal choice for various medical applications.
Medical imaging systems such as CT, MRI and ultrasound scanners will make good use of the series 293 as the four-directional joystick can be used to navigate the imaging interface while the integrated optical encoder can be turned to adjust and fine-tune slice selection or image rotation. Activation of the pushbutton can initiate e.g., image recording or snapshots. Similarly, surgical robotics and minimally invasive surgery systems can employ the series 293 as well. Here, the joystick can move instruments in four directions, and the optical encoder will allow for adjustment of the tool and camera orientation, zoom or depth.
Industrial Controls
The series 293 joystick encoder is also sure to find a home in factory halls around the globe, providing accurate and intuitive control for various applications.
In Computer Numerical Control (CNC) machines and manually operated robotic arms, the joystick enables movement along two axes, while the encoder can be used to finely adjust positioning, speed or tool orientation. Operators of conveyor systems and material handling equipment can navigate items using the joystick and control orientation and alignment with the encoder. Additionally, in heavy equipment and crane controls, the joystick provides straightforward directional control while the encoder fine-tunes lifting angles and rotation.
Industrial and Commercial Remote Controllers
Finally, the series 293 joystick encoder can be employed in various remote-control applications.
In drone and Unmanned Aerial Vehicle (AUV) piloting, the joystick grants control of the basic flight directions (forward, backward, left and right), and the rotational encoder can adjust drone yaw (rotation) or control a gimbal-mounted camera, allowing for smooth panning and scenic shots. Similarly, other remote-controlled vehicles such as cars, trucks, rovers and underwater drones, can be steered using the series 293. Also, the joystick encoder can enable the control of security camera movement, orientation and zoom.
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Video Introduction to the Series 293
The series 229 pushbutton switch has been developed as a highly reliable, yet cost-effective means of circuit control, ideal for those applications that require performances and durability beyond what standard tactile switches can offer. It is available for purchase here on our website, and inquires can be made via the contact formular.
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