The mouse hold the picture to see the magnification effectZDY-G fiber-optic current sensor is a new all-fiber current sensor, which has reliable operation, stable performance, accurate measurement, good linearity, fast response, low power consumption, significant energy saving, and excellent performance-cost ratio. An ideal DC high current measurement and control instrumentation equipment.
The well-designed ZDY-G fiber optic current sensor has a unique level of technology and craftsmanship.
l The all-fiber current sensor has only optical fibers on the primary side, without any active optoelectronic devices, and only optical fibers are connected between the high and low voltage sides, which greatly simplifies the insulation design. This new type of current sensor design ensures long-term reliable operation of the sensor.
l Adopt scientific automatic temperature compensation technology to make the sensor have stable temperature drift at different ambient temperatures;
l Solve the problem of stray magnetic field interference from the principle and structure design to ensure the accuracy of on-site measurement.
ZDY-G fiber current and current sensor has a compact structure, no attachment box, opening method, installation, use, maintenance and calibration are very convenient.
ZDY-G fiber current and current sensors have two functions for measurement and control. They are applicable to the measurement and control of DC measurement and control systems in the metallurgy, chemical, electroplating, agrochemical, electric power and other fields.
ZDY-G fiber-optic current sensor and PF series secondary metering instrument are used together to form a comprehensive functional test and metering device for DC high-power system, which can simultaneously complete the system current, voltage and power, and the current hours and voltage hours and Measurement of electrical energy.
Second, the basic principle of the sensor
The ZDY-G fiber - optic current sensor adopts the reflective optical path scheme, which is based on theAmpere 's law of loop and the Faraday effect of magneto-optical (as shown in the figure) for current measurement. It detects two beams transmitted through an optical fiber arranged around a current-carrying conductor. The magnitude of the phase difference formed between the polarized lights to indirectly measure the current value. The optical fiber not only functions as a transmission signal, but also functions as a basic sensing element, so it is essentially a functional optical fiber sensor.
Third, ZDY-G optical fiber sensor technical indicators
Product Model:ZDY-G
Measuring range: 0～1000KA (Customer can request different ranges)
Measurement principle: Faraday magnetic rotation effect
Accuracy: ±0.1% FS
Eccentricity error: ±0.1% Fs
Linearity error: ±0.1% Fs
Repeat error: ±0.05% Fs
Response time: <1us
DC withstand voltage: ≥3kV
Temperature drift: -40~+70°C Scale factor deviation in full temperature range ±0.1%
Power consumption characteristics: less than 50W, and has nothing to do with the range.
For measurement purposes: load impedance requirements greater than 100KΩ
Output method: voltage output 0 ~ 1V (measurement signal) (or customized according to customer requirements)
Optical fiber sensitive ring size: perimeter 3~10 meters (can be customized according to user requirements)
Working temperature: -45～+85°C
Power supply: AC220V±10% 50HZ
Weight: about 20KG
