Optical Slot Speed Sensor

Description:

An Optical Slot Speed Sensor is a non-contact sensor designed to accurately measure the rotational speed of motors, shafts, and other rotating components. It operates by detecting interruptions in a light beam caused by the passage of slots or holes in a rotating disk or encoder wheel attached to the target object.   

Key Features:

• Non-Contact Measurement: Eliminates wear and tear associated with mechanical contact sensors.   
• High Accuracy: Provides precise speed measurements with minimal error.   
• Wide Speed Range: Capable of measuring a broad range of rotational speeds.   
• Versatility: Suitable for a wide variety of applications in industrial automation, robotics, and motor control.   
• Easy Integration: Compatible with various microcontrollers and data acquisition systems.   
• Robust Design: Durable construction for reliable operation in demanding environments.   

Specifications:

• Operating Voltage: Typically 5V or 12V DC
• Output Signal: Usually a digital pulse signal (e.g., TTL, CMOS)  
• Response Time: Fast response times for accurate speed measurements   
• Sensitivity: High sensitivity to detect even small changes in rotational speed
• Mounting Options: Various mounting options for flexibility in installation
• Environmental Considerations: Operating temperature range, vibration resistance, and other environmental factors

DATA SHEET AND USECASE

One commonly used Optical Slot Speed Sensor is the LM393-based module. Key features include:

• Operating Voltage: 3.3V to 5V DC

• Current Consumption: 15mA

• Slot Dimensions: 10mm width and 12mm height

• Output Format: Digital switching output (0 and 1)

• Indicator LED: Lights up when no object is detected; turns off when an object is present