3 results about "Frequency of use" patented technology

The invention belongs to the field of production and processing of an attenuation sheet, and specifically relates to a manufacturing method for a 1dB attenuation sheet with power of 2W; the manufacturing method comprises the following steps of designing an attenuation sheet pattern through HFSS software in a simulation manner; sputtering a resistor and an electrode layer on an aluminum oxide ceramic substrate; electroplating a thickened gold electrode; obtaining electrode and resistor patterns through photoetching; dividing the attenuation sheet by a grinding wheel into independent attenuation sheet units; adjusting input and output impedances by a thermal oxidation impedance adjusting method; and coating the input end and the output end of the attenuation sheet with conductive silver paste. By adoption of the attenuation sheet manufactured by the invention, the operating frequency can achieve 18GHz; the attenuation precision within the operating efficiency is 1dB plus or minus 0.4dB; the standing-wave ratio is less than or equal to 1.3; and the input and output impedances are 50 plus or minus 1 omega.

A delay phase calibration method for an improved alpha-beta scanning method comprises steps of: performing scanning imaging on an orthogonal grid grating sample by using an alpha-beta scanning method,namely, using sinusoidal signals with the operating frequency is f and initial phases being respectively 0 and [Pi]/2 to control a galvanometric vibrating mirror system to deflect the laser beam to scan; confirming the scanning image rotation angle [Theta] according to the relative positional relationship between the scanned image reconstructed using the target trajectory and the target image, and converting the angle value [Theta] into the radian value [Phi], wherein [Phi] is the size of the delay phase when the frequency is f; repeating the above measurement processes to obtain the delay phase size [Phi]k at different frequencies fk; and finally, according to the plurality of sets of measurement results, fitting the f-[Phi] function relationship, namely, the relationship between the scanning frequency and the phase delay function, and completing the delay phase calibration for the improved alpha-beta scanning method. The delay phase calibration method provided by the invention accurately determines the phase delay size and corrects the phase delay due to the inertia of the vibrating mirror system in advance.

Equipment is realized which is capable of increasing the frequency of use of a deposition mask of an organic EL element and the recycle of an adhesive agent by efficiently cleaning the deposition mask with little damage and efficiently collecting the adhesive agent. A pulse laser is irradiated to a deposition mask to separate the deposition agent from the deposition mask. The separated deposition agent is sucked by a suction nozzle, and the deposition agent is separated from air by a cyclone and deposited on a bottom of the cyclone. Thereafter, a first valve is opened to collect the deposition agent in a deposition agent collection section. Then a second valve is opened to move the deposition agent to a deposition agent refining section to be refined. A third valve is opened to store the refined deposition agent in a deposition agent storage section. The deposition mask may be cleaned without being damaged to collect the deposition agent with high efficiency.