摘要:
A piezoelectric transducer for sending and receiving an ultrasonic wave and an FPC for applying current to the piezoelectric transducer is provided, the FPC is arranged oppositely to a side face of the piezoelectric transducer, and a soldering material for electrically connecting the piezoelectric transducer to the FPC is arranged in a corner portion formed by the piezoelectric transducer and the FPC.
摘要:
An ultrasonic probe includes piezoelectric elements each including grooves parallel to each other and arrayed in a direction substantially parallel to the grooves, and a mixed member which is to fill the grooves and obtained by mixing in a nonconductive resin member a nonconductive granular substance with a coefficient of thermal expansion of not more than substantially 10−5 K−1.
摘要:
An ultrasonic probe includes piezoelectric elements each including grooves parallel to each other and arrayed in a direction substantially parallel to the grooves, and a mixed member which is to fill the grooves and obtained by mixing in a nonconductive resin member a nonconductive granular substance with a coefficient of thermal expansion of not more than substantially 10−5 K−1.
摘要翻译:超声波探头包括压电元件,每个压电元件包括彼此平行并且基本上平行于凹槽的方向排列的凹槽;以及混合构件,其填充凹槽,并且通过在非导电树脂构件中混合非导电粒状物质而获得, 的热膨胀不大于基本上为10 -5 K -1以上。
摘要:
The optical frequency comb generating device having two optical modulation parts 41 and 42 independently modulating optical waves propagating in two branch waveguides and a phase regulator 43 controlling a phase difference between the optical waves includes amplitude adjusting means 22 for adjusting a voltage amplitude of the RF signal supplied to at least one of the optical modulation parts, monitoring means 21 for monitoring the intensity Pout of the output light beam, and a bias control circuit 20 that controls the amplitude adjusting means to change a difference in voltage amplitude between the RF signals supplied to each optical modulation part, that detects a variation of the output light beam corresponding to the variation of the difference in voltage amplitude from the output signal of the monitoring means, and that controls the phase regulator on the basis of the detection result to adjust the phase difference.
摘要:
The present invention provides a polyphenylene sulfide film which consists essentially of a resin composition containing polyphenylene sulfide as major constituent, in which fine particles with an average particle size of 0.05-3 .mu.m are dispersed, the fine particles having a single particle index of not less than 0.5. The polyphenylene sulfide film of the present invention is excellent in not only the slipping property but also the number of electrical insulation defects are extremely small, so that the film of the present invention is useful for the dielectric film of film capacitor with stable initial characteristics. Further, since the film of the present invention is excellent in the slipping property and surface smoothness, so that it is useful as a base film for magnetic recording media with excellent magnetic conversion characteristics and excellent drop out characteristics.
摘要:
A method for evaluating a characteristic of, especially, each of Mach-Zehnder interferometers (MZIs) of an optical modulator. The method includes a step of measuring the intensity of the output of the optical modulator containing MZIs and a step of evaluating a characteristic of each MZI by using the sideband. The output intensity measuring step is the one of measuring the intensity Sn,k of the sideband signal contained in the output light from the optical modulator. The characteristic evaluating step is the one of evaluating a characteristic of the MZIk by using the Sn,k.
摘要:
A machining apparatus includes a rotary machine tool for machining a workpiece. A nozzle jets a coolant for the rotary machine tool. Information which changes based on a position of the nozzle is obtained. The nozzle is moved based on the information obtained.
摘要:
A machining apparatus includes a rotary machine tool for machining a workpiece. A nozzle jets a coolant for the rotary machine tool. Information which changes based on a position of the nozzle is obtained. The nozzle is moved based on the information obtained.
摘要:
Photosensitivity of an inner core which is disposed in a central portion of a core is low. Photosensitivity of an outer core which is disposed close to a cladding is high. In the cladding, photosensitivity of the inner cladding which is close to the core is high and photosensitivity of an outer cladding which is outside of the inner cladding is low. A plurality of slant optical fiber grating having different optical characteristics by using the optical fiber having such photosensitivity so as to form a gain equalizing optical filter. By doing this, it is possible to provide an optical filter having a slant optical fiber grating which can maintain a filtering characteristics in a narrow bandwidth and enlarge loss area.
摘要:
A biaxially oriented polyester film with a substantially non-crosslinked polymeric coating containing styrene and acrylate, wherein the coating is highly thermally stable with a primary onset temperature of greater than about 350C, having a glass transition temperature between about 0C and about 50C, having a solubility in a low molecular weight organic solvent, and having a surface energy of greater than about 35 dyne/cm and less than about 40 dyne/cm.