Overview

This document consolidates technical information on Ono Sokki's rotation detectors, optical sensors, measurement instruments, and frequency-to-voltage/current converters. It provides detailed product specifications, operational guidelines, application examples, and best practices to support accurate and reliable rotational and optical measurements in industrial environments.

1. Rotation Detectors and Display Units

Product Range and Selection

Ono Sokki offers a diverse lineup of rotation detectors including electromagnetic (external and internal gear types), magnetoelectric, and photoelectric types. Selection should be based on application requirements such as gear type, detection method, and environmental conditions.

Detection Gears

Detection gears, such as the MP-981 model, are essential for interfacing with detectors. Proper gear shape, mounting method, and gap settings are critical for measurement accuracy. Key parameters include a temperature coefficient of 0.4% per °C for DC resistance and typical load resistance of 10 kΩ. Compliance with JIS E 4031 vibration standards ensures durability.

Rotary Encoders and Display Units

Rotary encoders provide multifunctional rotation measurement capabilities. Display units offer real-time rotation data and compatibility notes with various detectors and gears are provided to ensure system integration.

2. Optical Sensors and Rotational Speed Detectors

Rotational Speed Detectors (MP-981 and AP-981)

• Detect speeds from 1 to 20,000 r/min using a 60-tooth gear.
• Output rectangular wave signals with amplitude consistency across speeds.
• Pulse width varies with rotation direction, affecting synchronization when multiple detectors are used.

Low-to-Medium Speed Detection

Designed for stable and precise measurement in low to medium speed ranges with detailed pulse output and environmental specifications.

Acid-Resistant, Waterproof Optical Sensors

Constructed for harsh environments, these sensors offer acid resistance and waterproofing with robust operational temperature and electrical characteristics.

Wide Range Measurement Sensors

Capable of versatile speed and distance measurements, suitable for adaptable industrial applications.

Compact Optical Fiber Sensors and Optical Multimeters

Compact designs enable long-distance visible light detection with high sensitivity and precision. Application examples illustrate their use in measurement systems.

3. Measurement and Control Instruments

Product Features

• TMF-80 swivel-neck model with magnetic base and optional optical fiber extension.
• Compact and ultra-compact instruments for general and space-constrained applications.
• Multifunctional tachometers with 2-channel calculation capabilities.
• Reversible counters and ratio multipliers for advanced measurement tasks.
• Signal amplifiers to enhance data transmission quality.

Specifications

Includes measurement accuracy, input/output signal types, power requirements, mechanical dimensions, and mounting options tailored for low-to-medium speed applications.

Applications

• Rotational speed measurement and control.
• Position and angle detection via rotary encoders.
• Counting and timing in automation systems.
• Signal conditioning and amplification.

System Configuration Examples

Illustrates integration of sensors, amplifiers, counters, and display units, including use of accessories like reflective marks and optical fibers.

Recommendations and Limitations

• Use appropriate signal amplifiers and ensure compatibility between sensor outputs and instrument inputs.
• Follow mounting guidelines to optimize accuracy.
• Some devices require user-supplied connectors; environmental factors affect performance.

4. Frequency-to-Voltage/Frequency-to-Current Converter

Features

• High-speed, accurate frequency-to-voltage and frequency-to-current conversion.
• Wide input frequency range and selectable output types.
• Compact design supports stacking multiple units for expanded functionality.
• Supports various coupling options with specified mechanical tolerances.

Specifications

Coupling and Mounting Recommendations

• Maintain eccentricity and angular deviation within specified limits to prevent mechanical stress and ensure accuracy.
• User responsibility for machining and mechanical fit according to guidelines.
• Avoid mounting locations imposing excessive load on detector shafts.

Application Examples

• Industrial automation requiring precise high-speed frequency-to-voltage conversion.
• Control systems utilizing frequency-to-current signals.
• Stacked units for multi-channel measurement expansion.

Best Practices and Limitations

• Ensure proper coupling alignment and use recommended cables to minimize noise.
• Adhere to power and environmental specifications to prevent malfunction.
• Regular calibration and setup verification are essential for sustained accuracy.

5. General Recommendations and Critical Considerations

• Selection of detectors and display units must consider gear type, detection method, and environmental factors.
• Proper mounting and gap settings of detection gears are vital for measurement accuracy.
• Environmental influences such as temperature and vibration affect performance and must be accounted for.
• Consult Ono Sokki representatives for specialized applications or high-reliability requirements.
• Use recommended accessories and follow installation guidelines to optimize system performance.

Conclusion

This comprehensive guide equips users with essential technical knowledge for selecting, installing, and operating Ono Sokki’s rotation detection and measurement systems. Emphasis on proper component selection, environmental compatibility, and adherence to mechanical and electrical specifications ensures accurate, reliable, and durable measurement solutions across diverse industrial applications.