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Qingdao ZITN Technology is a premier manufacturer of high-end sensors, hybrid integrated circuits(HIC), HTHP MWD/LWD solution,DTS/DAS solutions. We ZITN Technology are recognized as a national-level specialized, sophisticated, and distinctive company, and a Shandong Provincial Manufacturing Champion, underscoring our leadership and innovation in the field.
Over 23 years of dedicated innovation, we have developed two flagship product series known for "High-Precision & High-Reliability" and "High-Temperature & High-Reliability," serving extreme environments in aerospace, and deep-earth/sea exploration. Ousolutions are trusted by over 800 clients across more than 30 countries worldwide.
Why Choose Us?
One-stop solution
We provide a full industrial chain from chip design to system integration. All key steps are completed in-house. This ensures high efficiency, strong quality control, and fast delivery.
Professional team
We have more than 350 employees, with over 40% technical specialists. Many team members are national and regional high-level experts. We invest over 20% of our resources in R&D every year.
Advanced R&D and manufacturing base
Our self-owned industrial park covers more than 20,000 square meters. It supports both research and mass production. We can develop and produce high-precision and high-reliability sensors and ICs.
Advanced equipment
We operate multiple specialized workshops for microelectronics and sensors. Over 2,000 sets of advanced equipment support our work. This ensures stable production and strong industrialization ability.
Types of Fluxgate Sensors：
The "standard" Fluxgate sensor, smiliar to a closed loop Hall effect design
The "C-type" Fluxgate, where the performance is significantly improved by:
Making the field sensing element with the entire toroidal core, without a gap
Ensuring high frequency performance by using a separate core for the transformer effect
The "IT-type" Fluxgate, where the performance is improved a step further by:
Duplicating the field sensing element, using two toroidal cores with opposing excitation coils
Improving the design of the high frequency current transformer and processing electronics
The "Low frequency" Fluxgate, using only the low frequency part of the "C-type" Fluxgate sensor, not considering the current transformer, to have a cost effective and efficient sensorfor low frequencies
Application of High Temperature Fluxgate Sensor：
Autonomous vehicles navigation
Fluxgate sensors are increasingly used in autonomous vehicles to improve navigation accuracy. They detect Earth's magnetic field variations, helping vehicles determine their position even when GPS signals are weak or blocked. This enhances safety and reliability in urban environments or tunnels.
Geophysical and environmental monitoring
In geophysics, fluxgate sensors are vital for detecting subtle magnetic anomalies related to mineral deposits, fault lines, or underground structures. They enable detailed surveys with high sensitivity, supporting resource exploration and earthquake prediction efforts.
Industrial automation & robotics
Factories utilize fluxgate sensors for position sensing and process control. They monitor magnetic fields generated by machinery, ensuring precise operation and safety. For example, in conveyor systems, fluxgate sensors detect metal objects or position changes.
Aerospace & defense applications
Fluxgate sensors are critical in aerospace for navigation, attitude control, and missile guidance. Their ability to operate reliably in harsh environments makes them suitable for space missions and military systems.
Medical imaging & diagnostics
Emerging uses involve magnetic field sensing in medical devices, such as magnetoencephalography (MEG). Fluxgate sensors help detect weak magnetic signals from neural activity, aiding in brain research and diagnostics.
Why Fluxgate Current Sensors are More Accurate than Hall Effect Sensors
Measurement principle
Fluxgate sensors detect changes in the magnetic field around a conductor to measure current indirectly, avoiding direct contact and reducing errors from contact resistance and temperature variations. Hall effect sensors measure current by applying a magnetic field to create a transverse voltage difference, which can be more susceptible to external factors.
Measurement range
Fluxgate sensors cover a wider range, from microamps to several thousand amps, thanks to their iron core design that enhances sensitivity. Hall effect sensors are typically limited to measuring currents up to a few hundred amps.
Interference
Fluxgate sensors experience less interference since they measure the magnetic field changes caused by the current itself, with minimal impact from external magnetic fields. Hall effect sensors are more prone to interference from external magnetic sources.
Temperature stability
Fluxgate sensors have better temperature stability due to temperature compensation methods that eliminate temperature-related errors. Hall effect sensors' accuracy can be significantly affected by temperature changes because of the resistance coefficient variations in the conductor.
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