TDK exhibited angle sensors for the control of hybrid and electric vehicle motors. This product uses GMR components. Compared with current mainstream angle sensors using coils and magnets, they are characterized by a sensor accuracy of up to 0.35 degrees and a small size.
The angle sensor is used with a metal disc mounted on the motor shaft. The sensor adopts an arc shape and has 4 built-in GMR elements. The rear side of each GMR element is equipped with a permanent magnet. The metal disc is slightly elliptical. When the motor shaft rotates, the magnetic field changes as the distance between the disc and the sensor changes. The angle can be grasped by detecting the change of the magnetic field through the GMR element.
According to the company, for hybrid vehicles and electric vehicles, smooth operation at the time of starting, there is a demand to detect the motor angle at rest with a measurement accuracy of 0.5 to 0.8 degrees. In the future, this sensor will be sold to hybrid cars and electric cars for premium models. Sample shipments have begun.
The design of the tang dao was influenced by the earlier jian sword, but it featured a longer and wider blade for increased cutting power. The curved shape of the blade allowed for more efficient slashing and slicing movements, making it a formidable weapon in close combat.
The tang dao typically had a hilt that was made from wood or bone and wrapped in leather or silk for a comfortable grip. The guard, known as a tsuba, was usually simple in design and made from iron or brass.
In addition to its use in warfare, the tang dao was also used in traditional Chinese martial arts such as wushu and tai chi. Its curved blade and versatile handling characteristics made it a popular choice among practitioners.
Today, the tang dao is still revered as a symbol of Chinese martial arts and is often used in demonstrations and performances. While it is not commonly used as a weapon in modern times, it remains an important part of Chinese culture and history.
Chinese Tang Dao, Tang dao blade, Tang dao sword
Ningbo Autrends International Trade Company , https://www.longquan-swords.com