Optical Probe Current Sensor (OpECS)
We have developed a light probe current sensor.
<Product Features and Strengths> - Measurement possible without circulating around the current line with a very small sensor head - Capable of measuring both AC and DC - Relative sensor (depends on the distance between the wire and the sensor) <Advantages of Optical Measurement> - No superimposed electromagnetic noise - High electrical insulation and safety - No insertion impedance - No frequency derating required
basic information
- Collimator lens type - Fiber type (basic form) - Absolute value measurement
Price range
Delivery Time
Model number/Brand name
OpECS
Applications/Examples of results
- Relative value measurement - Local measurement / In-liquid measurement - Absolute value measurement
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News about this product（3）
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Notice of Participation in NEPCON Japan 2025
Citizen Fine Device Co., Ltd. will be exhibiting at "Nepcon Japan 2025," which will be held from September 17, 2025 (Wednesday). We invite you to visit our booth.
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The OpECS products were featured in the magazine "Mechatronics."
In the June 2024 issue of the magazine "Mechatronics," an article about our "current sensor for current waveform measurement using optical probes," the "OpECS" product, was featured on the News Flash page.
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Development of the current sensor "OpECS" for current waveform measurement using optical probes, with a maximum frequency range of 150MHz and a current range of ±140A, accurately measuring current values of high-frequency, high-current power semiconductors.
Citizen Fine Device Co., Ltd. has developed the world's first current sensor for measuring current waveforms using an optical probe, called "OpECS." It enables accurate current measurement primarily for high-frequency, high-current power semiconductors. This product will be available for sale starting in late April. ■ Main Features 1. Structure of OpECS - Composed of a sensor part with an optical probe and a control unit. - By connecting to an oscilloscope, the measured current can be confirmed as a waveform. 2. High-frequency and high-current measurements are possible through magneto-optical measurement using the optical probe. 3. The ultra-small sensor head allows for current measurements in confined spaces. 4. No noise interference, making it suitable for a wide range of applications. 5. Can also be utilized in the field of magnetic field measurement. Sales of OpECS in the domestic market will begin in late April 2024. In preparation for the launch in the domestic market, a sales agency agreement has been concluded with Iwasaki Communication Co., Ltd. (Headquarters: Suginami-ku, Tokyo; President: Shogo Kimura), a major manufacturer of measuring instruments. This partnership will enable sales to commence through Iwasaki Communication's distribution network.
