Datasheet > OHWG113

OHWG113

更新时间： 2022-03-21 14:31:41

品牌	Logo	应用领域
OHHALLSENSOR		传感器
页数	文件大小	规格书
5页	219K
描述
OHWG Series Wiegand sensor

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OHWG Series

Wiegand sensor

General Description

OHWG series wiegand sensor is new-type magnetic sensor based on wiegand effect. It

can convert the magnetic signal into voltage output without additional power supply, so it

is also called zero power magnetic sensor. Wiegand sensor is composed of magnetic

bistable function alloy wire made by special processing and induction coil winded outside.

When an alternating magnetic field of proper strength is applied to the Wiegand wire, the

magnetic field of the core switches polarity and then reverses, causing the Wiegand pulse

to be generated.Magnetic switching occurs when the wire is in the presence or alternating

longitudinal magnetic fields. The pulse amplitude is not totally dependent on excitation

field strength and orientation.The alternating positive and negative magnetic fields of

equal saturating strength are used to magnetize and trigger the Wiegand wire. These

alternating magnetic fields are typically produced by magnets which are affixed to the

rotating or moving equipment, by a stationary read head and moving Wiegand wires, or by

an alternating current. This remarkable technology offers new capabilities in proximity

sensing, tachometry, rotary shaft encoding, speed sensing, and many other applications.

Features

· No additional power supply during operating time

· When trigger magnetic induction intensity is 2mT, the output voltage amplitude could

reach 1V. When 8mT, the output voltage amplitude could be higher than 4V

· Amplitude of output signal has nothing to do with the change rate of magnetic field,

achieving “zero speed” sensing

· No touching point, enduring erode, water-proof, explosion-proof and having a lifespan of

2 billion times

· Achieving electrical signal long-distance transfer by using telephone line and coaxial

line,etc.

Applications

Wiegand sensors are used in water, gas, and electric meters for electronic indexing. They

also havemany automotive applications such as antilock braking, speed sensing, and

position indicators. They have been used in anemometers and other wind speed

applications, machine controls, shaft speed sensing, and numerous rotational counting

applications.

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Nanjing Ouzhuo Technology co., Ltd

www.ohhall.com

www.zbling.com

Tel：86-25-52312738，86-25-83247886 FAX: 86-25-52312738

E-mail: ohhall@163.com

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