[11a-C212-1~12] 3.7 Optical measurement, instrumentation, and sensor

10:15 AM - 10:30 AM JST(1:15 AM - 1:30 AM UTC)Presentation by Applicant for JSAP Young Scientists Presentation Award

[11a-C212-6] Implementation of a Variable Distance Measurement Range Function in a Frequency-Domain Interferometer

〇Kazuma Yamane¹, Kenta Arai¹, Toshiki Aizawa¹, Tatsutoshi Shioda¹ (1.Saitama Univ.)

Keywords:

Distance measurement,Frequency domain,Laser interferometry

Amid the growing demand for high-precision distance measurement in modern industry, Frequency-Domain Interferometry (FD-I) has been proposed as a method unaffected by optical path length fluctuations. This method achieves interference of light traveling along the same propagation path on the frequency axis, determining distance from the phase difference derived from wavelength variations. Notably, a key advantage of this approach is the ability to expand or contract the measurement range by adjusting the modulation frequency. In this study, we leverage this characteristic to experimentally demonstrate the capability of performing measurements across a wide range.