Introduction to JEL Through-Beam (Mapping) Sensor

Basic Principle

A through-beam sensor is a type of photoelectric sensor.
It consists of two components: an emitter and a receiver.
The emitter will continuously emits a beam of light (infrared, visible light, or laser, etc.).
When there is no object, the light beam can directly reach the receiver.
When an object passes through and blocks the light beam, the receiver cannot detect the light (which triggers an output signal).

Manufacturer and Model Used

Main Manufacturer: KEYENCE
Sensor Model: FU-18M
Amplifier: FS-N11N
 

Installation Method

Installed on the Wrist Block using a fixed mounting bracket.
 

Applicable JEL Models

Compatible with the S Series, M Series, L Series, and G Series, etc.
 

Advantages

1. Through-beam optical design: The emitter and receiver are placed on opposite sides, allowing the light beam to pass directly through the detection area.
2. Long detection distance: Due to high light intensity, detection range can reach several meters or even over ten meters.
3. Strong anti-interference capability: Since the light beam is direct and concentrated, it is less affected by dust or ambient light.
4. Fast response: Can quickly detect when an object passes through or interrupts the beam.
5. High precision: Detection is triggered as soon as the beam is interrupted, unaffected by object color or surface reflectivity.

 

Disadvantages

1. Requires more installation space.
2. When in use, it is necessary to consider whether the distance between the sensor and the robot arm is sufficient.
3. The detection position must be aligned with the emitter and receiver to ensure the beam can be interrupted.

 

Conclusion

Through-beam sensors are the most stable, most accurate, and most interference-resistant type.
However, they are relatively limited by detection distance and installation angle requirements.
If there are any issues regarding installation or configuration, please contact our company for consultation.