44results about How to "Realize real-time regulation" patented technology

The invention relates to the technical field of optics. The invention concretely relates to an optical tweezer system based on vortex pair light beams. The system comprises a laser, a collimation andbeam expansion system, a spatial light modulator, a confocal beam shrinkage system, a sample table and an observation unit which are arranged according to a light path, the spatial light modulator continuously loads different vortex pair light beam phase diagrams in real time, and a single vortex pair light beam is used for controlling and rotating particles in real time. According to the opticaltweezer system, the accurate regulation and positioning of two particles at any position in a plane and any controllable rotation operation in a rod-shaped particle plane can be realized, so that theapplication objects of the optical tweezer system are more abundant, and the problems that an existing optical tweezer system is difficult to control rod-shaped particles and accurately and directionally rotate are effectively solved.

The invention provides a dynamic regulation and control system for a bidirectional steel supporting structure. The dynamic regulation and control system for the bidirectional steel supporting structure comprises the bidirectional steel supporting structure, axial force loading tools and a control center. The bidirectional steel supporting structure comprises flexible joints which are located at junctions of horizontal supports and vertical supports. Each flexible joint comprises an outer box, an inner box, a first connecting assembly and a second connecting assembly, wherein a first hole and a second hole coaxial with the first hole are formed in the surface of the outer box, and the inner box is arranged in the outer box; the first connecting assembly and the second connecting assembly penetrate through the first hole and the second hole correspondingly to be connected with the inner box; and elastic elements are arranged between the outer wall of the inner box and the inner wall of the outer box. The axial force loading tools are used for axial force loading of the horizontal supports or the vertical supports. The control center is used for controlling the working states of the axial force loading tools. By adoption of the dynamic regulation and control system for the bidirectional steel supporting structure, the problems that in the prior art, the additional bending moment of the bidirectional steel supporting structure is too large during axial force loading, and the bidirectional steel supporting structure cannot be regulated and controlled in real time are solved.

The invention discloses a method for detecting glutathione and / or hydrogen peroxide based on a colorimetric biosensor, comprising: (a), constructing a magnetic composite material h-Fe 3 o 4 @ppy; (b), h‑Fe 3 o 4 @ppy, TMB and different concentrations of H 2 o 2 Incubate the reaction, measure the UV absorption curve, and establish a hydrogen peroxide standard curve; (c), record the maximum UV absorption value of the sample to be tested according to step (b), and substitute it into the standard curve to obtain H 2 o 2 concentration. The present invention also includes (d), h-Fe 3 o 4 @ppy、H 2 o 2 , TMB and different concentrations of glutathione to incubate the reaction to separate h‑Fe 3 o 4 @ppy, add sulfuric acid to establish a glutathione standard curve; (e), measure the maximum UV absorption value of the sample to be tested according to step (d), and substitute it into the standard curve to obtain the GSH concentration. The invention can detect glutathione and hydrogen peroxide simply, quickly and sensitively.

The invention provides an axial force and displacement dual-adjustment system for a steel support. The axial force and displacement dual-adjustment system for the steel support comprises a control device, a power output device and an adjustment device which is arranged at an end part of the steel support; the adjustment device is used for loading axial force and adjusting displacement of the steel surface, and transmitting the loaded axial force value and displacement data of the adjustment device which acts on the steel support to the control device in real time; the power output device is connected with the adjustment device and provides power for the adjustment device; the control device is connected with each of the adjustment device and the power output device, receives the axial force value and the displacement data transmitted by the adjustment device, and controls the power output of the power output device. According to the axial force and displacement dual-adjustment system for the steel support provided by the invention, the axial force and the displacement of the steel support can be adjusted and controlled simultaneously, and the difficult problem that the axial force of the steel support changes because of the displacement of the steel support caused by the influence of external environment in practical construction is solved.

The invention discloses a control method for a cascade ultra-low temperature refrigerator, which includes: detecting the real-time temperature T in the refrigerator; The real-time temperature T controls the start and stop of the high-temperature compressor and the low-temperature compressor in the refrigerator, so that the real-time temperature T in the refrigerator reaches the set value of the temperature in the box; when the following conditions are met at the same time, the low-temperature compressor is started: the high-temperature compressor has been started and the working time is long ≥The shortest working time of the high-temperature compressor for the second-stage refrigeration; the real-time temperature value of the high-temperature evaporator ≤ the minimum temperature value of the high-temperature evaporator when the low-temperature compressor is turned on; the real-time temperature T of the refrigerator ≥ the set value of the temperature in the box + the upper deviation of the low-temperature compressor .