3results about How to "Improve response characteristics" patented technology

This invention provides a wireless, passive force-position implantable growth monitoring system and its fabrication method for early-onset scoliosis correction. The system includes: a connected compressible capacitive sensor and a flexible wireless antenna coil; the compressible capacitive sensor is connected to a self-growing early-onset scoliosis correction implant growth rod, and the flexible wireless antenna coil is disposed within the body. The compressible capacitive sensor and the flexible wireless antenna coil together constitute an LCR resonant circuit; the compressible capacitive sensor monitors the pressure changes caused by the elongation of the self-growing early-onset scoliosis correction implant growth rod during tissue or bone growth, thereby causing changes in capacitance and resulting in changes in the resonant frequency of the LCR resonant circuit; the resonant frequency change is detected and read out wirelessly via an external readout device. This system is designed to meet the needs of digital rehabilitation, requires no internal power supply, and has a stable structure, making it suitable for growth monitoring after early-onset scoliosis correction surgery.

The invention relates to a real-time vibration compensation device and method for a cold atom gravimeter. The device comprises a Raman laser, a rubidium atomic group, a reflector, an accelerometer, an optical phase-locked loop module, an analog-to-digital converter, a reference clock source, a heteronuclear FPGA, a direct frequency generation module and an upper computer. Two pairs of Raman lasers oppositely act on a rubidium atomic group in the vertical direction, the accelerometer and the reflector are in rigid connection, analog differential signals of the accelerometer enter the analog-digital converter, converted digital signals enter the heteronuclear FPGA for digital calculation, and the reference clock source serves as clock signals of the digital circuit. A signal calculated by the heteronuclear FPGA enters the direct frequency generation module and is output to the optical phase-locked loop to control the phase of the Raman laser, and the heteronuclear FPGA communicates with the upper computer through TCP connection. The vibration real-time compensation device for the cold atom gravimeter is fully digital, and has the advantages of large dynamic range, low noise and high-precision phase synchronization compensation capability.

The invention belongs to the technical field of photoelectric functional materials, and discloses a multi-acid-group photoelectric functional material with a reverse photoconduction programmable switching characteristic, and a preparation method and application of the multi-acid-group photoelectric functional material. The polyacid-based photoelectric functional material with the reverse photoconduction programmable switching characteristic is inorganic-organic hybrid polyniobium oxysalt, the chemical composition of the polyacid-based photoelectric functional material is [Ni (BTP)] 4 [Nb10O26]. 35H2O, BTP is a Bis-tris propane organic ligand, and the Bis-tris propane organic ligand is a Bis-tris propane organic ligand. When the multi-acid-group photoelectric functional material with the reverse photoconduction programmable switching characteristic is constructed into a photoelectric device and applied with external bias voltage and illumination, the photoconduction response polarity can be reversibly switched between positive photoconduction and reverse photoconduction, and reversible switching is regulated and controlled by excitation light wavelength and environment relative humidity. The method has important application value in the fields of photoelectric detection, environment sensing and multi-stimulus response optoelectronic devices.