What is a TMR Angle Sensor?
A TMR angle sensor is a type of magnetic sensor that detects the direction of the magnetic field of a magnet.
These products incorporate TDK’s accumulated magnetic technologies and thin-film technologies and boast high precision, high-reliability, and excellent temperature characteristics.
TMS sensors can operate stably under a wide range of temperatures. Because of this, they are increasingly used as automotive components, which require high precision and reliability. They also feature low power consumption and are used in a broad range of products in addition to automobiles including consumer products such as robots and smartphones.
TMR: Tunnel Magneto Resistance
Contents
Sensor Output Hands-On
Experience sensor outputs that change in real time as the target magnet rotates. Pick up the rotating magnet and move it up, down, left, or right.
The sensor detects the absolute angle of the magnetic field, and the resistance of the TMR element is converted to Sin/Cos voltage inside the sensor, which is displayed on the black screen as the output value.
The sensor output changes in real time as the magnet is rotated.Rotation of the magnet and the slider are interlocked.
Rotation can be stopped and reversed by pressing the play button
It can be confirmed that the amplitude does not change when the magnet is moved up and down.
Features of TDK’s TMR Sensors
- Magnetic sensor industry’s highest class of angle precision
- Excellent environment resistance, high-reliability design that maintains performance over long periods, and compatible with automotive grades
- Extremely stable output characteristics over a wide temperature range eliminates the need for temperature correction processing
- Extensive lineup of automotive-grade analog and digital products compatible with redundant designs to achieve ASIL compatibility
- Analog response performance that supports ultra-high rotations speeds in excess of 1 giga-RPM (theoretical value)
- Provision of packages that contribute to overall system compactness, weight reduction, cost reduction and soldering reliability
- TMR sensors can be used in applications subject to vibration with high accuracy because the output amplitude does not change within a certain range of magnetic field strength.
Performance
TDK was the first in the world to commercialize automotive TMR sensors and began shipments in 2014.
TDK’s TMR sensors are used in a wide range of applications including automobiles, which are becoming increasingly automated and electrified, industrial equipment, which is often used in environments prone to dust and contamination, and consumer products, which need to be compact and have low power consumption.
TDK is able to meet high-precision sensing needs around the world with TMR sensors that have unparalleled high angle precision.
Principles of TMR Element Sensing
An explanation of the structure of TMR elements and the principles of sensing.
Applications
- Application Examples
-
5:40Introduction of automotive industry
trends and TMR angle sensor products -
1:00e-bikes motor control solution
-
1:15Automotive application
On-Axis/Off-Axis
YouTube
What are the roles of high-precision sensors in creating natural robot
movement?
Product Guide
- Selection Guide
The selection guide provides an overview of the entire product lineup and helps you select the optimal product
- Search by characteristic values
You can narrow down by each characteristic value from all angle sensor product lineups.
Detailed data can be downloaded from the product page after that.
Video Gallery
A gallery of videos relating to TMR angle sensors
Contact Us
You can check the questions and the answers from customers in "FAQ".
Contact TDK to request samples or evaluation boards or to makes requests or submit questions.
