4results about How to "Adjustable frequency" patented technology

This invention belongs to the field of new energy vehicle charging cable technology, specifically an adjustable power millimeter wave therapy device, probe control assembly, and method. It includes: a body 1, which controls various electrical components; the body 1 serves as the main structure of the millimeter wave therapy device, providing electrical control and millimeter wave output; two ends 2 located on one side of the body 1 for millimeter wave therapy on the patient; the ends 2 contact the patient for millimeter wave therapy; and a wire 14 located between the body 1 and the ends 2 for electrical connection. The wire 14 connects and conducts the millimeter wave, ensuring that the millimeter wave generated by the body 1 can stably reach the ends 2 for patient treatment. The probe control assembly of this adjustable power millimeter wave therapy device is simple to operate, safe, stable, facilitates millimeter wave therapy on the patient, has strong adaptability, good treatment effect, and high treatment efficiency, meeting actual treatment needs.

The utility model relates to sample collection device technical field, concretely for water sample automatic continuous sampler, including rustproof shell, collection subassembly, collection subassembly includes trace peristaltic pump, trace peristaltic pump fixedly connected in the inside of rustproof shell, one side of trace peristaltic pump is fixedly connected with sampling hose, one side of sampling hose is provided with anti -blocking filter head hole. The water sample automatic continuous sampler, through installing collection subassembly, can realize that the front end of sampling hose is connected with screen filter and 50 -mesh filter head, is used to pretreat water sample, prevents impurity and blocks sampling system, and trace peristaltic pump is equipped with LED display screen, and the sampling frequency and sampling cycle can be adjusted, so as to adjust sampling mode and cycle according to actual demand, ensure accurate sampling, and the collected sample will enter the sampling bottle from the other end, adopt this kind of structure to make the whole sampling system can be safely and stably maintained in rustproof shell, and then it is convenient to sample under complex environment.

The utility model provides an ultrasonic oscillation integrated device for a laboratory. The ultrasonic oscillation integrated device for the laboratory comprises an equipment frame and four base supports, the four base supports are fixedly connected to the bottom of the equipment frame, an ultrasonic module is installed at the position, close to the front face, of one side of the equipment frame, and a vibration module is installed at the position, close to the back face, of one side of the equipment frame; and a socket is installed on one side of the equipment frame through a fixed base, and a drainage pipe is installed on one side of the equipment frame. According to the ultrasonic oscillation integrated device for the laboratory, through the design, the structure is simple, operation is convenient, ultrasonic oscillation integration and frequency and amplitude adjustment can be achieved, the ultrasonic oscillation integrated device is suitable for the ultrasonic and oscillation requirements under different experiment conditions, and a sample is firm and reliable on the fixing plate through the fixing device; the sample container is prevented from falling off or shifting in the oscillation process, and the accuracy of an experimental result is ensured.

The application discloses a frequency-adjustable non-reciprocal transmission system based on a PT symmetry principle and a detection method thereof, and the circuit system comprises a loss resonance module of inductance-capacitance-positive resistance parallel resonance, an adjustable coupling module and a gain resonance module of inductance-capacitance-negative resistance parallel connection; wherein the loss resonance module and the gain resonance module are connected through the adjustable capacitance coupling module to form a PT symmetric system; signal transmission from the loss resonance module to the gain resonance module is forward transmission, and vice versa is reverse transmission. By changing the adjustable capacitance coupling module, the coupling coefficient between the loss module and the gain module is changed, so that the transmission frequency of the system is changed. The amplitude of the transmission signal is adjusted, the saturation property of the negative resistance in the gain resonance module is utilized to realize the difference between the forward transmission coefficient and the reverse transmission coefficient, and non-reciprocal transmission is realized. The system has the advantages of high non-reciprocal ratio, low insertion loss and the like.