Abstract:
PROBLEM TO BE SOLVED: To enhance a picture data processing speed and to enhance a resolution of an inspection system, and cutting down construction cost of crack inspection system. SOLUTION: After carrying out a monochrome picture processing of an original picture of a construct obtained through a camera or a product, several sorts of filtering operations are performed to measure the crack width by a crack analysis in order to extract only a crack. The crack analysis contains the process of measuring the crack width with a concentration value histogram of a pixel distributed in the cracks, using the concentration value in the crack part. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
The present invention relates to an optical frequency synthesizer and an optical frequency synthesizing method using femtosecond laser optical injection locking, which inject a femtosecond laser optical frequency comb into a diode laser, thus obtaining single-mode laser light, phase-locked to only a single mode in the optical frequency comb, and which change the optical frequency and interval, that is, the repetition rate, of a femtosecond laser, together with the frequency of a semiconductor laser, thus scanning optical frequencies while realizing a single desired optical frequency. The optical frequency synthesizer using femtosecond laser optical injection locking, includes a mode-locked femtosecond laser (110), which is a master laser, and a diode laser (120), which is a slave laser and into which laser light emitted from the femtosecond laser is injected.
Abstract:
In the present invention, time information is sent through a common power line in executing home automation devices or using various industrial equipments. In the power line broadcasting, a small amount of data, such as time information, is transmitted unidirectionally, and long-distance power line broadcasting can be possible using carriers of a low frequency band. time setting for various instruments is automatically performed in response to a power signal after a breakdown of electric current, making unnecessary a user's action to perform the time setting, and the existing power line can be used without change.
Abstract:
The present invention relates to a device for testing resist pressure of a vessel wherein gas is stored at a high compressed state, before the use of the vessel, and to a method for testing resist pressure of a vessel by using the testing device. The device includes: the vessel provided as an object to which a resist pressure test is carried out; an elastic tube placed in the interior of the vessel and adapted to fill a liquid into the interior thereof; a pressurizing means adapted to apply a predetermined pressure to the elastic tube to allow the elastic tube to be expanded; and a pressure gauge adapted to gauge the pressure in the interior of the vessel, wherein a gas is filled into the vessel to apply a predetermined pressure to the interior of the vessel by the expansion of the elastic tube.