Dual-way Loop Detector With Inductive Vehicle Loop Detector On Sale

Product Details
Brand Noble
Serial Number LD206
Country of Origin Guangdong China
Certificate CE
Payment & Shipping Terms
Price Quote USD59
Minimum Order 5 Piece
Average Delivery Time After receiving payment 3-5 working day
Payment Method T/T ,Western Union, In cash
Package Details 1 Carton/ 25 piece
Ability to Supply 3000 Piece/month

Dual-way Loop Detector

In the intelligent parking lot industry, vehicle detectors are a common component. These detectors can be categorized based on their underlying technology into several types: toroidal coil vehicle detectors, ultrasonic sensor vehicle detectors, radar detection vehicle detectors, and video detection vehicle detectors. Among these, toroidal coil vehicle detectors are the most widely used.

Toroidal Coil Vehicle Detectors

Toroidal coil vehicle detectors work by embedding a ground-sensing coil under the lane. When a vehicle passes over the coil, it alters the magnetic field, which the detector then uses to calculate parameters such as vehicle flow, speed, and vehicle length. This technology is mature, easy to install, and cost-effective, making it a popular choice in the parking lot industry.

Role in Intelligent Parking Systems

In intelligent parking systems, ground-sensing vehicle detectors primarily serve as triggers to detect the presence of a vehicle on the lane. Their reliability and affordability have led to their widespread adoption.

Key Advantages

  • Mature Technology: Proven and reliable performance.
  • Ease of Installation: Simple to set up under the lane.
  • Cost-Effective: Lower costs compared to other detection technologies.

Dual-way Loop Detector

Dual-way Loop Detector

As a traditional traffic information dual-way loop detector device, the toroidal coil vehicle detector offers exceptional reliability and cost-effectiveness, making it a highly viable option for future applications. The core technology involves a coil buried in the ground, which is connected to a tuning loop supported by a constant current source through a transformer. This setup generates an electromagnetic field in the space around the coil.

How It Works

  1. Electromagnetic Field Generation: The coil buried in the ground generates an electromagnetic field.
  2. Vehicle Detection: When a vehicle enters the coil's magnetic field, eddy currents are induced in the vehicle's metallic parts.
  3. Inductance Change: These eddy currents generate a new magnetic field that opposes the original one, reducing the coil's total inductance.
  4. Frequency Deviation: The change in inductance shifts the tuning frequency from its original value, creating a higher frequency signal.
  5. Signal Processing: This frequency deviation is detected by comparing it with the voltage from a voltage-controlled oscillator.
  6. Vehicle Presence Signal: The phase comparator's output signal controls the voltage-controlled oscillator to track the resonant frequency changes, resulting in a pulsed output signal. An output amplifier then amplifies this pulsed signal.


  • Speed Measurement: The digital, analog, and frequency outputs can be used for accurate speed measurement.
  • Vehicle Counting: Digital signals facilitate precise vehicle counting.

Key Advantages

  • High Reliability: Proven technology with consistent performance.
  • Cost-Effective: Offers a high-cost performance ratio.
  • Wide Applicability: Suitable for various traffic monitoring and management applications.

ground loop detector

Features and Advantages

  • High Accuracy: Ensures precise speed measurement and traffic volume counting.
  • CE Compliance: Adheres to CE standards, ensuring safety and reliability.
  • Industrial-Grade Design: Built to withstand demanding environments.
  • LED Indication: Provides clear visual feedback for loop detection status.
  • Low Cost and Easy Installation: Cost-effective and simple to install, making it accessible for widespread use.
  • Automatic Frequency Selection: Enhances detection reliability and accuracy.

Quality Assurance

Our ground loop detectors are manufactured to the highest quality standards. As a reputable manufacturer, we export our products both domestically and internationally. Over the years, we have received excellent feedback from our customers, which reinforces our commitment to quality and customer satisfaction.

Commitment to Excellence

For us, quality and customer satisfaction are equally important. Good quality not only brings more orders but also fosters long-term customer relationships. We are dedicated to pursuing quality relentlessly, ensuring our products meet the highest standards and customer expectations.


With our focus on high accuracy, quality assurance, and customer satisfaction, our Dual-way Loop Detectors are a reliable choice for intelligent traffic systems. Our dedication to excellence ensures that our products will continue to meet the evolving needs of the transportation industry.

ground loop detector







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Factory Address

Mingjinhai Industry Park, Tangtou Road,Shiyan Town, Bao'an District



Contact Us

Telephone : +86(755)27651483

Business Phone : +8619130389983

Work Time :08:00-18:00(Beijing time)

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