Discover the Power of Active Speed Sensors

Discover the Power of Active Speed Sensors

Table of Contents:

1. Introduction
2. Overview of AI Tech 2.1 History and Background 2.2 Quality Systems and Personal Service 2.3 Certifications and Made in USA
3. Active Speed Sensors 3.1 Bridge between Mechanical and Electrical World 3.2 Frequency Proportional to Speed
4. Types of Speed Sensors 4.1 VR Sensors 4.1.1 Sinusoidal Output 4.1.2 Two-Wire Device 4.2 Hall Effect Sensors 4.2.1 Three-Wire Device 4.2.2 Square Wave Output
5. Zero Speed and Active Sensors 5.1 Zero Speed Active Sensors 5.1.1 Definition of Zero Speed 5.1.2 Faithfully Produce Pulse at Low Speeds 5.2 Hall Effect Sensor 5.2.1 Silicon Chip and Integration 5.2.2 Time Dependency and Constant Innovation
6. Output and Amplitude 6.1 Digital Square Wave Output 6.2 Independence of Amplitude from Speed
7. Single Channel and Dual Channel Devices 7.1 Three-Wire vs Five-Wire Devices 7.2 Direction Sensing Capabilities
8. RH Series and Differential Sensors 8.1 RH Series - Rotational Hall Sensors 8.2 BH and DH Sensors - Differential Hall Sensors
9. Automatic Gain Control and Calibration 9.1 Automatic Gain Control Circuit 9.2 Calibration to Ambient Magnetic Field
10. Logic Thresholds and Tachometer Applications 10.1 Understanding Square Wave Components 10.2 Valid Pulse Detection and Noise Margin
11. Comparison of RHDH and BH Sensors 11.1 Relative Capabilities of Each Series 11.2 Choosing the Right Sensor for Specific Applications
12. Pluses and Minuses of Hall Effect Sensors 12.1 Temperature Range and Lifetime 12.2 Wide Range of Supply Voltages 12.3 Installation, Reliability, and Direction Indication
13. Output Styles and Noise Immunity 13.1 TTL Compatible vs Supply Tracking 13.2 Effect of High Capacitance on Supply Tracking
14. Limitations and Axial Trajectory Targets 14.1 Temperature Limitations 14.2 Limitations in Axial Trajectory Applications
15. RH Series and BH/DH Series Photos
16. New Technology and Hazard Location Protection 16.1 Introduction to New Technology 16.2 Explosive-Proof and Intrinsic Safety Options

Article: Introduction to AI Tech and Active Speed Sensors

AI Tech is a reputable company that has been in the business of providing reliable and cost-effective monitoring and control devices for speed sensing applications for over 50 years. In this article, we will take a closer look at the company, its products, and the active speed sensors it offers.

1. Overview of AI Tech

1.1 History and Background

AI Tech started its journey as a small industrial division of a Fortune 100 company. However, it is now privately-owned, combining the quality systems of larger companies with the personalized service and entrepreneurial spirit of small businesses. With ISO 9001 certification and sensors made in the USA, AI Tech ensures high standards in its products.

1.2 Quality Systems and Personal Service

As a customer-oriented company, AI Tech values personal service and understands the unique needs of its clients. Unlike larger corporations, AI Tech provides the attention and care of a small company, ensuring that customers receive the best products and support.

1.3 Certifications and Made in USA

AI Tech takes pride in its certification as AS9100, ISO 9001, and ISO 9001:2015 compliant. These certifications guarantee the adherence to rigorous quality standards, reinforcing AI Tech's commitment to excellence. Additionally, all AI Tech sensors are proudly manufactured in the USA, assuring customers of the highest quality products.

2. Active Speed Sensors

2.1 Bridge between Mechanical and Electrical World

Active speed sensors play a crucial role in bridging the mechanical and electrical worlds. They have taken over the tasks once performed by mechanical governors, providing speed data to tachometers and other instruments. These sensors produce a frequency that is proportional to the speed of the target, enabling accurate monitoring and control.

2.2 Frequency Proportional to Speed

The heart of the active speed sensor is the silicon chip, which employs the Hall effect principle. This integration of circuits ensures high reliability and precise speed measurement. Unlike passive sensors, which are dependent on speed and air gap, active sensors offer a square Wave output with a consistent amplitude, independent of speed. This feature simplifies triggering and enhances compatibility with various electronic circuits.

3. Types of Speed Sensors

3.1 VR Sensors

VR sensors, also known as Variable Reluctance sensors, are one type of speed sensor. They have been in use for a long time and are characterized by their sinusoidal output. VR sensors are two-wire devices that provide a simpler solution for speed sensing applications. However, in this article, we will focus on another type of sensor: Hall effect sensors.

3.2 Hall Effect Sensors

Hall effect sensors are three-wire devices that utilize the Hall effect to generate speed signals. Unlike VR sensors, they produce a square wave output. This type of output allows for better interfacing with electronic circuits and offers advantages in various applications.

Continue reading...