BSO/fibre-optic voltmeter with excellent temperature stability

Kuhara, Y.; Hamasaki, Yuji; Kawakami, Akira; Murakami, Yukio; Tatsumi, Masahiro; Takimoto, H.; Tada, Kohji; Mitsui, Takahisa

doi:10.1049/el:19820721

Cited by 16 publications

(12 citation statements)

References 1 publication

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“…An integrated optical electric-field sensor is developed based on the Pockels effect [17][18][19]. In this optical sensor, an optical waveguide is fabricated on a LiNbO 3 substrate by titanium diffusion.…”

Section: Sensormentioning

confidence: 99%

Application of Integrated Optical Electric-Field Sensor on the Measurements of Transient Voltages in AC High-Voltage Power Grids

Xie¹,

Yang

et al. 2019

Applied Sciences

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Transient voltages in the power grid are the key for the fault analysis of a power grid, optimized insulation design, and the standardization of the high-voltage testing method. The traditional measuring equipment, based on electrical engineering, normally has a limited bandwidth and response speed, which are also featured by a huge size and heavy weight. In this paper, an integrated optical electric-field sensor based on the Pockels effect was developed and applied to measure the transient voltages on the high-voltage conductors in a non-contact measuring mode. The measuring system has a response speed faster than 6 ns and a wide bandwidth ranging from 5 Hz to 100 MHz. Moreover, the sensors have the dimensions of 18 mm by 18 mm by 48 mm and a light weight of dozens of grams. The measuring systems were employed to monitor the lightning transient voltages on a 220 kV overhead transmission line. The switching transient voltages were also measured by the measuring system during the commissioning of the 500 kV middle Tibet power grid. In 2017, 307 lightning transient voltages caused by induction stroke were recorded. The characteristics of these voltage waveforms are different from the standard lightning impulse voltage proposed by IEC standards. Three types of typical switching transient voltage in 500 kV AC power grid were measured, and the peak values of these overvoltages can reach 1.73 times rated voltage.

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Section: Sensormentioning

confidence: 99%

Application of Integrated Optical Electric-Field Sensor on the Measurements of Transient Voltages in AC High-Voltage Power Grids

Xie¹,

Yang

et al. 2019

Applied Sciences

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“…We adopt an electro-optic (EO) sensor module [14][15][16][17][18][19][20][21][22][23][24][25] for our communication system since it is the key component in terms of realizing a high rate in near-field intrabody communication.…”

Section: Introductionmentioning

confidence: 99%

Electrooptic sensor module fabrication for near-field intrabody communication

Furuya¹,

Sasaki²,

Morimura³

et al. 2014

OPT REV

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In this paper, we describe how to obtain a low cost electrooptic (EO) sensor module for the mass production of nearfield intrabody communication devices. In our previous study, we used a bulk cleavage technique to fabricate EO modulators without the need for any optical polishing or washing processes. In this study, we fabricated EO modulators as a miniaturized chip sensor without a base portion, and clarified the feasibility of assembling optical components by only a passive alignment technique with a compact housing. #

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“…Since the 1970s, several electric corporations have applied the Pockels Cell to voltage measurement [23,24]. Additionally, the Pockels Cell is also used to detect E-fields [25].…”

Section: Introductionmentioning

confidence: 99%

Development and Application of Integrated Optical Sensors for Intense E-Field Measurement

Zeng

Wang

Niu

et al. 2012

Sensors

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The measurement of intense E-fields is a fundamental need in various research areas. Integrated optical E-field sensors (IOESs) have important advantages and are potentially suitable for intense E-field detection. This paper comprehensively reviews the development and applications of several types of IOESs over the last 30 years, including the Mach-Zehnder interferometer (MZI), coupler interferometer (CI) and common path interferometer (CPI). The features of the different types of IOESs are compared, showing that the MZI has higher sensitivity, the CI has a controllable optical bias, and the CPI has better temperature stability. More specifically, the improvement work of applying IOESs to intense E-field measurement is illustrated. Finally, typical uses of IOESs in the measurement of intense E-fields are demonstrated, including application areas such as E-fields with different frequency ranges in high-voltage engineering, simulated nuclear electromagnetic pulse in high-power electromagnetic pulses, and ion-accelerating field in high-energy physics.

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BSO/fibre-optic voltmeter with excellent temperature stability

Cited by 16 publications

References 1 publication

Application of Integrated Optical Electric-Field Sensor on the Measurements of Transient Voltages in AC High-Voltage Power Grids

Application of Integrated Optical Electric-Field Sensor on the Measurements of Transient Voltages in AC High-Voltage Power Grids

Electrooptic sensor module fabrication for near-field intrabody communication

Development and Application of Integrated Optical Sensors for Intense E-Field Measurement

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