In modern automation and industrial control systems, photoelectric sensors are widely used in various detection and control fields as a key component. photoelectric sensors play an irreplaceable role whether in automatic door switch detection or object recognition on the production line, However, due to the complex and diverse application environments, photoelectric sensors need to rely on potting materials to improve their durability and reliability.
What is a photoelectric sensor?
Photoelectric sensors detect objects, changes in surface conditions, and other items through a variety of optical properties. A photoelectric sensor is mainly composed of an emitter for emitting light and a receiver for receiving light. When the emitted light is blocked or reflected by the sensing object, the amount of light reaching the receiver changes. The receiver detects this change and converts it into an electrical output. The light source for most photosensors is infrared or visible light (usually red, or green/blue for color recognition).
Through-beam sensor
Why do photoelectric sensors need potting materials?
Reflective sensor
Diffuse reflection sensor
Photoelectric sensors often face various harsh environmental conditions in practical applications, including high temperature, moisture, dust and mechanical vibration. In order to protect the precise electronic components inside the photoelectric sensor and extend its service life, potting materials are particularly important. The main functions of potting materials include:
1. Waterproof and dustproof: Protect the sensor from moisture and dust to ensure its normal operation in harsh environments.
2.Anti-vibration: Provides mechanical strength and reduces the impact of external vibrations on the sensor.
3.High temperature resistance: Maintain stable performance in high temperature environments to ensure the accuracy and reliability of the sensor.
4.Anti-corrosion: Resist corrosion of the sensor by chemical substances and extend its service life.
Products Recommended
Soft polyurethane potting glue PUR 6020 potting for inside shell with low hardness
▶ Excellent low temperature characteristics, excellent weather resistance
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Epoxy potting glue EP 6110 potting for inside shell
▶ Good toughness and high hardness
▶Excellent adhesion and cracking resistance
▶Excellent electrical insulation and stability
▶ Good waterproof and moisture-proof properties, extremely low water absorption rate
▶ Good temperature resistance, can withstand temperatures up to 150 degrees in a short period of time
High dielectric constant potting compound PUR 8018 potting for inside shell
▶ Low viscosity, strong operability
▶ Excellent low temperature characteristics and excellent weather resistance
▶Excellent electrical insulation and stability
▶ Good waterproof and moisture-proof properties, extremely low water absorption rate
