89results about How to "Correction bias" patented technology

The invention discloses a puncture trocar. The puncture trocar comprises an outer thimble with a needlepoint and needle cores hidden in the outer thimble. The puncture trocar is characterized in that the needle cores are made of elastic materials; the upper segments of the needle cores are arc-shaped; a side hole matched with the arc-shaped needle cores is arranged at the side, which is close to the needlepoint, of the outer thimble; and the side hole is communicated with the inner cavity of the outer thimble so that the puncture frequency is reduced, the puncture success rate is increased, the damage to channel tissues is reduced to the greatest extent, and operation of more bigger targets can be realized.

The invention discloses a control method under dynamic soft reduction and a determining method of a solidified tail end and a reduction interval. The control method comprises the steps of: simulating the position of the solidified tail end through a solidifying computing model; carrying out pressure control on a sector of a continuous casting machine, wherein the pressure control comprises same reduction quantity of reducing a plurality of continuous sector near the simulated position, obtaining the pressure value of the continuous sectors; determining the position of the solidified tail end according to the mutation of the pressure value in the continuous sectors, determining the reduction interval according to the position of the solidified tail end; converting pressure control into position control after the reduction interval is determined, determining the reduction quantity of each sector of the reduction interval; and carrying out reduction control on each sector of the determined reduction interval according to the reduction quantity of each sector. The invention corrects the deviation caused by the solidifying computing model, and can effectively avoid the damage caused byreducing the continuous casting machine in a fully-solidified area according to the pressure values required by different types of steel in different positions.

An optical receiver is described. This optical receiver has two operating modes: a calibration mode and a normal mode. During the normal mode, switches are used to electrically couple an input of a transimpedance amplifier (TIA) to an optical-to-electrical (OE) converter that receives an optical signal and provides a corresponding analog electrical signal. Moreover, during the calibration mode, the switches are used to electrically isolate the input of the TIA from the OE converter while maintaining a feedback path from an output of the TIA to the input of the TIA, thereby ensuring proper bias of the TIA during calibration. Furthermore, a frequency response of the TIA during the normal mode is substantially unchanged over an operating bandwidth of the TIA by the capability to electrically isolate the input of the TIA from the OE converter during the calibration mode.

In a connector fitted with a shorting terminal, both sides of an elastic member included in the shorting terminal are respectively provided with abutting parts to form one pair on the left and right, and each of the abutting parts can be independently elastically deformed and also biases two terminals to maintain a shorted state. When the connector fits with a mating connector housing, a short-cancellation member makes contact with a cancellation part and the abutting part is separated from the terminal to cancel the shorted state.