30results about How to "Reduce sources of interference" patented technology

The invention discloses a method and device for achieving the positioning and shearing control of a flying shear by process software, solving the problem of high cost, unstable signal and the like in the prior art. In the invention, a speed presetting module, a position presetting module and a function switch module are self-defined in the process software or a programmable block carried in a transmission device; an approach switch is arranged at the clipped corner position of a flying shear; the function switch module completes the switch control between the speed presetting module and the position presetting module through receiving the shear command of an external system and a signal sent by the approach switch; and the correct control of the positioning and shearing of the flying shear can be completed by controlling inside the transmission device. The method and the structure greatly reduce control hardware, bear low interference degree of the external signal, save the cost, are simple in operation, and have low requirement on an operator.

This invention relates to a fourier spectrometer based on dynamic stable scanning technology<0}. Wherein, it comprises a white light and laser source, an optical system mainly with Michelson interferometer, a feedback module to detect and convert the weak optical signal into electric signal, an A/D control module, an actuator module to control the phase difference of two arms of the interferometer, and a measurement module to detect the feedback and actuator modules for locked phase condition. This invention overcomes the defects in prior art, and can large-stroke continual scan with high precision, resolution and SNR.

The present invention relates to a labeling machine for attaching handles to PET containers, in particular to a labeling machine for PET containers, the labeling machine has a container input, with a plurality of A transport unit of aligned rotating discs, a labeling unit and a container output, wherein a handle feeder for attaching handles to the containers is arranged on the periphery of the transport unit.

The invention relates to the technical field of communication antennas and in particular relates to a phase shifting assembly, a phase shifting device and a phase shifting system. The phase shifting assembly is used for adjusting a phase of a signal flowing through the phase shifting assembly and comprises an outer conductor and an inner conductor, which are coaxially arranged in a sleeving manner, wherein the outer conductor or the inner conductor is fixedly provided with a transmission block for conveniently controlling the outer conductor or the inner conductor to have relative displacement along the axial direction; and a movable path of the transmission block is set in a pre-set range, so that a containing space for containing the transmission block does not need to be designed on the cavity in the axial direction and the transmission block does not extend out of the cavity in the axial direction when the phase shifting assembly is mounted in the cavity. The phase shifting device provided by the invention has the advantages of miniaturization, simple structure, relatively low cost, relatively good passive intermodulation, convenience for structure layout, relatively low loss and relatively stable properties in all aspects; and meanwhile, related data indexes including shaping, gain and the like can be conveniently improved, so that the transmission and emission of ultra-wideband signals can be conveniently realized.

The invention provides an EMG (Electromyographic) signal collector, which comprises a central processing unit, a signal modulation circuit, a voltage detection circuit, a signal conversion circuit and a memory, wherein the signal modulation circuit, the voltage detection circuit, the signal conversion circuit and the memory are connected with the central processing unit; the signal modulation circuit is connected with an EMG collecting electrode; and the signal conversion circuit is also connected with a USB (Universal Serial Bus) interface. The EMG signal collector has the advantages that EMG signal reference resources are greatly reduced; the use convenience of the device is improved; the use is convenient and flexible; and the interference of the collected EMG signals is little.

The invention provides an SIR testing system, comprising a control box; a programmable high voltage power supply in connection with the control box to provide power supply to the control box; an industrial personal computer in connection with the programmable high voltage power supply to control the programmable high voltage power supply; a programmable switch in connection with the control box to realize the switching among a plurality of testing channels; a switchboard connected with the control box, the industrial personal computer and the programmable switch respectively to provide a signal channel; an externally provided box in connection with the programmable switch; an environmental test chamber in connection with the industrial personal computer and an ammeter in connection with the control box to measure. Compared with the prior art, the testing system of the invention has the following advantages: 1) simplifying repetitive testing procedures; 2) avoiding errors of manual measurement; and 3) conducting more advanced data analysis.

The invention discloses a surface electromyogram signal acquiring device, which comprises a central processor as well as a signal conditioning circuit, a voltage detection circuit, a signal conversion circuit and a memory which are connected to the central processor, wherein the signal conditioning circuit is connected to an EMG (electromyogram) acquisition electrode; and the signal conversion circuit is additionally connected to a USB interface. The surface electromyogram signal acquiring device disclosed by the invention can greatly reduce the interface source of an electromyogram signal and improve using convenience thereof, and the acquiring device is convenient and flexible to use and low in interference on the acquired electromyogram signal.

The invention discloses a device for preventing interference of an audio device, comprising an antenna and a voice circuit which are arranged on a printed circuit board PCB, wherein, the voice circuit consists of an audio processing IC or an audio module and an audio element; an inductance is connected in series between the audio processing IC or the audio module and the audio element and has an inductance size of 40 to 120 nH. The device for preventing interference of the audio device can reduce the affection of interference of an audio circuit and effectively raise the efficiency of the antenna under the condition that internal circuit structure and contour design of the prior device are not changed; moreover, the design flow method of a mobile telephone is improved; design processes of the mobile telephone and a mobile antenna are specified; the design difficulty is simplified. Furthermore, the device is characterized in convenient realization and concise structure.

The invention relates to a mobile medical equipment positioning system, which relates to the technical field of medical equipment positioning and comprises a plurality of mobile medical equipment, a medical equipment library, a monitoring module, a dispatching operation end and an analysis module. According to the invention, the medical equipment library is arranged to acquire and store the real-time position information of each piece of movable medical equipment, and the monitoring module is arranged to realize the accurate positioning of the use range of the medical equipment; the analysis module compares and judges the interference shielding range and the interference influence range of the reserved equipment with the interference shielding range and the interference influence range of the reserved equipment, and selects the equipment capable of being reserved, so that the use interference information of the equipment is ensured, other equipment in use is not influenced, and the use interference information of the equipment is ensured. The method is not affected by other devices which are in use, and achieves the positioning management and use of the medical device in a range according to the signal interference range generated during the use of the medical device.

The invention provides a clock phase discrimination method and device, and the method comprises the steps: generating a plurality of output clocks, determining a target output clock with the smallestphase deviation value with a reference clock from the plurality of output clocks, and recording a first deviation value between the target output clock and a to-be-discriminated phase clock; in two adjacent clock periods, sampling the target output clock according to the reference clock, and determining whether the target output clock is aligned with the reference clock or not according to a sampling result; if the target output clock is not aligned with the reference clock, adjusting the phase of the target output clock according to a preset phase value, sampling and judging again until it isdetermined that the target output clock is aligned with the reference clock, and recording a second deviation value between the adjusted target output clock and the target output clock; and if so, compensating the to-be-discriminated phase clock according to the first deviation value and the second deviation value. By applying the embodiment of the invention, the phase discrimination precision can be improved.