An Ultrasonic Study of Some Optical Glasses

スポンサーリンク

概要

• 論文の詳細を見る

• Ultrasonic delay time in typical optical glasses was measured between -20°and 120℃ using superposition method at 5 MHz, which assured the precision of 1 in 10^4. It was found out that the temperature coefficients of delay time of measured glasses lie in the range of ±50 ppm/℃, and shift from negative to positive as SiO_2 content decreases. The frequency dependence of acoustic loss was also measured using pulse echo method up to 130 MHz, and was found to be in the range of 0.01∼0.03 dB per unit wavelength.

• 社団法人応用物理学会の論文
• 1967-07-05

著者

• Inamura Takahiro

  The Electrical Communication Laboratory N.t.t.

関連論文

• An Ultrasonic Study of Some Optical Glasses

スポンサーリンク