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製品情報

Isotropic optical E-field sensor head/Optical probe head

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Optical E-field sensors perform signal measurement including accurate measurement of electric field intensity distribution and broadband frequency, which were not possible under conventional methods. This is because these sensors are based on the measurement principle of an independent Pockels effect and do not use metal coaxial cables.
In addition to primary applications in research and product development, optical E-field sensors are used for identifying and resolving the causes of EMC problems.
In recent years, companies have been studying how to achieve massive reductions in measurement costs by constructing detailed simulation models and conducting EMC design, the process by which EMC quality is built into the design stage. Completion of this process requires verification of a variety of theoretical constructs and simulation models.

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Standard models

Isotropic optical E-field sensor heads

It is possible to measure the electrical fields of individual components across 3 orthogonal axes by setting the sample in a jig.

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SH-03EX isotropic optical E-field sensor head (high-sensitivity model)
Item Brief specifications
Frequency 100k–3GHz
E-field intensity 0.002–100V/m
Isotropy ±1dB typ.
Sensor head size 30mm (dia.) x 90mm
Sensor head materials Foam body

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SH-10EX isotropic optical E-field sensor head (broadband model)
Item Brief specifications
Frequency 100k–10GHz
E-field intensity 0.01–500V/m
Isotropy ±1dB typ.
Sensor head size 40mm (dia.) x 90mm
Sensor head materials Foam body

Optical probe head

It is possible to perform a direct electro-optical conversion of the power output from a compact antenna and transmit a signal by optical fiber.

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Item Model Brief specifications
Frequency PH-0255 300k–2GHz
PH-0455M 300k–4GHz
PH-0655 300k–6GHz
Transmission loss PH-0255 5dB±5dB typ.
PH-0455M 10dB±5dB typ.
PH-0655 15dB±5dB typ.
Sensor head, metal section 10x10x20mm

Custom components

We will propose a solution that fits your needs, after meeting with you to determine the detailed specifications.

SH-10EL isotropic optical E-field sensor head

A compact triaxial optical E-field sensor head for measuring field intensity. It can be used for measuring field intensity in locations such as the interior of a microwave oven.

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Item Brief specifications
Frequency 100k–10GHz
E-field intensity* 0.5–25,000V/m
Isotropy ±0.5dB typ.
Sensor head size 12mm (dia.) x 80mm
Sensor head materials Resin
* Consultation required when measuring a strong electric field (values shown are actual measurements at 2.5GHz)


NLD head

An ultra-miniature, monoaxial optical E-field sensor.
It can be used for electric field measurement within the narrow space of metal housing, etc.

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Item Brief specifications
Frequency 100k–10GHz
Electric field intensity* CS-1403 0.5–25,000V/m
CS-1210 0.01–500V/m
Sensor head size 6x6x24mm
Sensor head materials Resin
* Consultation required when measuring a strong electric field (values shown are actual measurements at 2.5GHz)


Optical voltage probe head

Because the electricity is not absorbed at the point of measurement, an accurate waveform can be obtained. It is therefore possible to apply this instrument to such uses as analyzing the voltage on a circuit board in ESD testing.

  • Forward 2-pin type
    Forward 2-pin type
  • Horizontal 2-pin type
    Horizontal 2-pin type
  • SMA type
    SMA type
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Inquiry by telephone:+81-47-388-6197(Electric field products - Sales manager) Mon~Fri 8:30~17:30

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