Zero Power consumption Sensor WG215（Special for flow meter）

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Zero Power consumption Sensor WG215（Special for flow meter）

Product catalog summary

Features

The sensor operates without an external power supply.
It uses a bipolar excitation mode, outputting positive and negative electrical pulse signals when the magnetic field polarity changes.
The sensor only outputs a pulse signal when the external magnetic field polarity changes and reaches the excitation threshold, ensuring stable and reliable operation without vibration.
The signal amplitude is independent of the magnetic field's changing speed, allowing operation at near-zero speeds.
The output signal can be transmitted remotely, making it suitable for LAN management.
It is an intrinsic safety device with no mechanical contact or sparks.
The sensor has a wide operating temperature range and strong environmental adaptability.

Principle Outline

The WG215 sensor, also known as a Wiegand Sensor, is a magnetic component based on the Wiegand effect. It generates energy independently, producing a sharp voltage pulse signal without external power. The sensor comprises a specially processed alloy wire and an induction coil. The alloy wire has a double magnetic structure, with a soft magnet core and a hard magnet shell. When excited by an alternating magnetic field, the core's magnetization direction reverses, causing a sudden change in the magnetic field around the wire and generating positive and negative pulses in the induction coil. The pulse amplitude depends on the excitation field strength, not the field's changing speed, enabling 'Zero Speed' counting detection.

Product Parameters

Parameter	Symbol	Min.	Typ.	Max.	Unit
Excitation magnetic field	B	3	6	12	mT
Pulse signal amplitude	VO	1.5			V
Pulse width	τ	10		30	us
DC resistor	R	650		1000	Ω
Operating frequency	f		10		kHz
Operating Temperature	B	-20		125	℃

Typical Circuit

The document includes a typical circuit diagram for the sensor, illustrating the connections and components required for its operation.

Product Outline

The sensor's pins are soft wire, with no distinction between positive and negative polarity. The product is marked with the part number WG215.

Catalog excerpts

Zero Power consumption Sensor WG215（Special for flow meter）

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Zero Power Consumption Sensor WG215（Special for Flow Meter） Features No need the power supply when it works. Bipolar excitation working mode, the sensor outputs a pair of positive and negative electrical pulse signal when the magnetic field polarity changes for a circle. Only when the external magnetic field polarity changes, and magnetic strength reaches the excitation threshold, the sensor will outputs a pulse signal, so the vibration won’t happen. The operation is stable and reliable. The signal amplitude has nothing to do with the magnetic field changing speed, and it can work at the speed...

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Zero Power consumption Sensor WG215（Special for flow meter）-3

Zero Power Consumption Sensor WG215（Special for Flow Meter） Principle outline Zero power consumption sensor WG215 ( it also be called Wiegand Sensor) is a kind of new type magnetic component that is made based on Wiegand effect. It can initiative generate energy, no need external power when it works. It can give a sharp voltage pulse signal. The sensor consists of a special processed alloy wire and induction coil which winds on the outside of wire , framework and pins etc. The alloy wire owns double magnetic structure, its core is soft magnet, and the shell is hard magnet. To utilize the magnetic...

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Zero Power consumption Sensor WG215（Special for flow meter）-4

Zero Power Consumption Sensor WG215（Special for Flow Meter） ◆Product Parameter Parameter Excitation magnetic field Pulse signal amplitude Pulse width Operating frquency Operating Temp. 4/6 南京艾驰电子科技有限公司 NANJING AH ELECTRONIC SCIENCE ＆ TECHNOLOGY CO.,LTD ADD：南京市江宁区东麒路 33 号国际研发园 B 幢 202-2 室 Room 202-2, Bldg B, 33, Dongqi Road, Nanjing, 211103 TEL：86-25-84

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Zero Power consumption Sensor WG215（Special for flow meter）-5

Zero Power Consumption Sensor WG215（Special for Flow Meter） ◆Typical Circuit 5/6 南京艾驰电子科技有限公司 NANJING AH ELECTRONIC SCIENCE ＆ TECHNOLOGY CO.,LTD ADD：南京市江宁区东麒路 33 号国际研发园 B 幢 202-2 室 Room 202-2, Bldg B, 33, Dongqi Road, Nanjing, 211103 TEL：86-25-84670370

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Zero Power consumption Sensor WG215（Special for flow meter）-6

Zero Power Consumption Sensor WG215（Special for Flow Meter） The Pins are soft wire, there is no distinguishing of positive and negative polarity Mark The product mark is prinnted by ink, the parts No. is WG215. 6/6 南京艾驰电子科技有限公司 NANJING AH ELECTRONIC SCIENCE ＆ TECHNOLOGY CO.,LTD ADD：南京市江宁区东麒路 33 号国际研发园 B 幢 202-2 室 Room 202-2, Bldg B, 33, Dongqi Road, Nanjing, 211103 TEL：86-25-846703

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