Wiegand flowmeter

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1. Product composition of zero power magnetic sensor

Zero power magnetic sensor is a magnetic sensor developed using the Wiegand effect. It consists of two parts:

1. Sensitive alloy wire;

2、 The detection coil wrapped around the gold wire of Heshan Socks. When there is relative motion between the measured magnet and the sensor, an appropriate external magnetic field acts on the alloy wire, causing the magnetization of the inner core to jump and the detection coil to output induced voltage pulses. Therefore, this voltage pulse can be used to detect the movement of magnets and applied to instruments that indirectly measure various physical quantities, such as flow meters, three meter reed pumps (water meters, gas meters, heat meters), tachometers, angle detectors, passive pulse generators, contactless limit switches, and so on.

2. What is the price of an electronic flowmeter?

3. The flow sensor measures the flow rate inaccurately

My judgment:

1. Perhaps your flow meter has chosen a larger range, which may also result in inaccurate data due to the fact that your measurements are only 100 milliliters each time, which is not very large.;

2、 Attention should be paid to the straight pipe section before and after the flow meter, otherwise the measurement will not be accurate;

3、 Extend the time of turning on the electric Tong Xun machine, and then observe;

4、 Ensure that PLC measurement does not lose pulses;

4. What is the difference between a Wiegand sensor and a reed switch?

Wiegand Sensor In 1974, American physicist Wiegand discovered that after appropriate treatment, the metal phase of the alloy wire changes, and the coercivi

1. Sensitive alloy wire;

2、 A detection coil wound around the alloy wire. When there is relative motion between the measured magnet and the sensor, an appropriate external magnetic field acts on the alloy wire, causing the magnetization of the inner core to jump and the detection coil to output induced voltage pulses. Therefore, this voltage pulse can be used to detect the movement of magnets and applied to instruments that indirectly measure various physical quantities, such as flow meters, three meters (water meters, gas meters, heat meters), tachometers, angle detectors, passive pulse generators, contactless limit switches, and so on. The reed switch is a special type of magnetic sensitive differential switch. When the permanent magnet approaches the reed switch, or when the coil wound on the reed switch is energized to form a magnetic field that magnetizes the reed switch, the contacts of the reed switch will induce magnetic poles of opposite polarity. Due to the opposite polarity of the magnetic poles and mutual attraction, when the attractive magnetic force exceeds the resistance of the spring, the separated contacts will be attracted; When the magnetic for

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