30results about How to "Stable observation" patented technology

The invention discloses a peeping mechanical arm for a fusion reactor. The peeping mechanical arm comprises a semi-circular horizontal guide rail (1); one end of the guide rail (1) is connected with afirst base (31) through a first motor driving mechanism (21), and the other end is connected with a second base (32) through a second motor driving mechanism (22); the peeping mechanical arm furthercomprises a trolley (4) provided with a camera (5); and the trolley (4) is arranged on the guide rail (1) and can move along the horizontal guide rail (1). The peeping mechanical arm for the fusion reactor is stable and reliable in work and high in efficiency.

The exposure time for obtaining a bright image in an image-acquisition optical system can be reduced, and shifting of an image visually observed in an observation optical system is prevented, thus enabling stable observation. A microscope including an image-acquisition optical path for recording an image focused by an objective lens and an observation optical path for visually observing an image split-off from the image-acquisition optical path; and including an aperture stop, in the observation optical path, for stopping down the numerical aperture thereof to smaller than the numerical aperture of the image-acquisition optical path.

The invention discloses a GNSS-based radar height finding system and a using method thereof. The system comprises a signal hardware receiver and a server, wherein the signal hardware receiver is provided with three channels, respectively, a GNSS channel, a main radar channel and an auxiliary radar channel; each channel sequentially comprises an antenna assembly, a low-noise amplifier assembly, a frequency mixer assembly, a first-stage microwave signal source assembly, a band pass filter assembly, a power amplifier assembly, a second-stage microwave signal source assembly, a low pass filter assembly, a quadrature demodulator assembly, and an analog-to-digital converter assembly according to a signal passing direction. Signals of the three channels pass through the analog-to-digital converter assemblies and then together enter a data collector assembly. A data acquisition control software module, a signal pretreatment software module, a two-dimensional imaging software module and a coherent processing software module are loaded on the server. The system of the invention can solve technical limitations of single observation angle, expensive employment, long revisit period and the like in the current spaceborne radar height finding system.

The invention discloses a method for estimating the X-ray pulsar phase based on loop circuit tracking. The method comprises the following steps: (1) a pulsar is determined and observed, and the pulse period P0 and the standard outline s(n) of the pulsar under the static condition are recorded; (2) within the observation time quantum, the arrival time of all the observed pulsar quantum photons is recorded; (3) the quantum photon arrival time series within the first tau s duration are superimposed to generate a measured pulse outline c(n) according to the pulse period P0 under the static condition; (4) the phase difference estimated value phi- of s(n) and c(n) is evaluated; (5) a one-order filter and a three-order filter are selected and combined to perform filtration on the phase difference estimated value phi- to obtain the frequency and phase feedback update information delta f and delta phi; (6) the delta f is utilized to correct the pulse period P0 under the static condition to obtain the corrected pulse period P- and obtain a new measured pulse outline c-(n) within the next tau s duration; (7) the delta phi is utilized to correct the standard outline s(n) to obtain the corrected standard pulse outline s-(n); (8) according to the s-(n) and the c-(n), the new phase difference estimated value phi-^ is obtained.

The invention discloses an endoscopic robotic arm for a fusion reactor, comprising a semicircular horizontal guide rail (1), one end of the guide rail (1) connected to a first base (31) through a first motor drive mechanism (21), and the other One end is connected to the second base (32) through the second motor drive mechanism (22), and also includes a dolly (4) provided with a camera (5), the dolly (4) is placed on the guide rail (1), and can be moved along the The horizontal rail (1) moves. The endoscopic mechanical arm for fusion reactor of the present invention has stable and reliable operation and high efficiency.

Provided is a sample container and a thermal analyzer. The thermal analyzer allows reliable observation of a film-like sample by solving a problem in that the film-like sample undergoes thermal deformation such as shrinkage or warping when the sample is heated or cooled. Further disclosed is a sample container for a thermal analyzer that is used to measure thermal behaviors of a sample attributable to heating or cooling of the sample and to observe the sample. The container includes a main body having a cylinder-shaped bottom and an open cylinder-shaped top and a transparent or translucent pressure plate that is in contact with an inner surface of the opening of the main body and presses down at least the pressure plate placed on a sample placed on the bottom surface of the main body.

The invention especially relates to a hybrid crawling and swimming unmanned submersible and an application method thereof, belonging to the technical field of underwater equipment and system for oceaneering. According to a technical scheme in the invention, the hybrid crawling and swimming unmanned submersible is characterized by comprising an unmanned cruising device (1) and at least multi-joint mechanical legs (2). The hybrid crawling and swimming unmanned submersible can carry out both rapid cruising in an ocean via the unmanned cruising device (1) and stable crawling at a seabed via the multi-joint mechanical legs (2); the unmanned submersible has high-efficiency large-scale maneuvering capability as an autonomous underwater vehicle (AUV), precise moving and positioning capabilities as a remote operated vehicle (ROV) and anti-ocean current stabilizing power as a crawling robot; and the unmanned submersible has the characteristics of high stability, low energy consumption and good environment adaptability and meets application demands for close-distance accurate stable observation and sampling, salvaging, searching and rescuing and the like in a complex seabed environment.

The invention relates to a robot suitable for underwater cruising and seabed crawling. The robot comprises an underwater cruising module and a seabed crawling module; the underwater cruising module comprises a left wing panel, a right wing panel, a front horizontal sealed cabin, a rear horizontal sealed cabin, an electronic cabin, a vertical thruster, a left longitudinal suction and drain tank, aright longitudinal suction and drain tank and a horizontal differential thruster; the seabed crawling module comprises a support structure and a plurality of mechanical legs; the underwater cruising module is arranged on the support structure; and each mechanical leg surrounds the support structure, and one ends of the mechanical legs are rotatably connected with the support structure. The robot can cruise quickly in the ocean or crawl stably on the seabed, and integrates the high-efficiency and wide-range mobile abilities of a cruising type underwater robot and the precise mobile operation ability and the anti-ocean-current ability of a crawling type underwater robot.

The invention discloses an intracellular dialysis apparatus and a dialysis method thereof. The apparatus comprises an electrode dialysis unit and an electrode holder, wherein the electrode dialysis unit is provided with a first micro-cannula and a second micro-cannula, inside of the electrode holder is provided with a central pipe cavity, the electrode holder is provided with a negative-pressure suction side pipe and a micro-cannula sleeve in communication with the central pipe cavity, the first micro-cannula and the second micro-cannula are simultaneously inserted into the micro-cannula sleeve and communicated with the central pipe cavity. According to the invention, beneficial effects are that the intracellular dialysis operation are simple, a liquid changing efficiency is high and a long-term stable observation can be carried out.

The invention discloses a device and a method for detecting communication quality of an indoor unit and an outdoor unit of an air-conditioning unit. The device comprises a signal receiving module, a unit number setting module, a data storing module, a signal processing module and a display module, wherein the signal receiving module is connected to the signal processing module and is used for receiving communication signals of the indoor unit and the outdoor unit, converting communication signals and inputting communication signals to the signal processing module, the unit number setting module is connected to the signal processing module and is used for setting the number of indoor units, the data storing module is connected to the signal processing module and is used for storing data which are from the signal processing module, the signal processing module is used for analyzing the number of indoor units which are in normal communication each time and calculating the error rate, and the display module is connected to the signal processing module and is used for displaying the number of indoor units which are in normal communication and the error rate in real time. By the aid of the device, the communication condition of indoor units can be reflected in real time, the cause that the communication of units is unstable is determined, the communication quality can be reflected in real time, and the problem can be found out and solved timly.

The invention discloses a grain sampler. The grain sampler comprises a first stand column, a second stand column, a third stand column, a cantilever, a sampling vehicle and a sampling rod, wherein the first stand column is fixed on the ground; the second stand column is arranged on the first stand column in a manner of axially rotating; the third stand column sleeves the outer side of the second stand column in a retractable manner; the cantilever is horizontally arranged at the upper end of the third stand column; the cantilever is provided with a first guide rail along the self length direction; the sampling vehicle is arranged on the first guide rail and slides relative to the cantilever; the sampling vehicle is provided with a second guide rail along the vertical direction; the sampling rod is arranged on the second guide rail and slides up and down relative to the sampling vehicle; a grain pumping channel is arranged at the radial center of the sampling rod; a lateral hole connected with the grain pumping channel is formed in a side face of the sampling rod; and the upper end of the grain pumping channel is connected with a grain conveying pipe, and a negative-pressure draught fan communicated with the grain conveying pipe is arranged on the ground. The grain sampler is high in degree of freedom and accurate in sampling.

The invention discloses a system and a method for testing laser frequency noise power spectrum density based on a Mach-Zehnder interferometer. A laser central frequency is locked at an orthogonal point of an interference curve of the Mach Zehnder interferometer through a feedback loop, so the system works in a good linearity range, converts laser frequency noise into light intensity, and fulfills an aim of performing direct test through an electronic frequency spectrograph; and a frequency observation point avoids 1 / f noise of the test system through the frequency shift by an acousto-optic frequency shifter. The invention provides the stable testing method which is used for testing laser frequency noise power spectrum density, is applied to an electronic frequency spectrograph, provides a means for analyzing the influence of laser frequency noise on an optical system, and has significant scientific meaning and application value.

The invention relates to a steady-state circulation body for a vortex shedding flowmeter, which structurally comprises a body, wherein a flow channel for the measured liquid to pass and two probe mounting holes which are communicated with the flow channel are arranged on the body, a vortex generating body is arranged in the flow channel, the body is a square body with paralleled top and bottom surfaces and paralleled side surfaces, and the flow channel is a square hole which penetrates through the body from the front and the back surfaces. The steady-state circulation body for the vortex shedding flowmeter overcomes the technical defects of unsteady observation and metering and slightly bigger integral structural size of the existing vortex shedding flowmeter, the size of a breaking-in pipeline can be correspondingly reduced during the installation process, the turbulent flow and the disturbance of the measured liquid can be reduced when the measured liquid passes through the flow channel of the circulation body, so the flow stablization effect is realized, and the stabilization of the vortex and the detection is realized.

The present invention relates to a watch maintenance device, specifically a watch processing device, comprising a device base, an accessory fixing assembly, a watch fixing mechanism, an angle positioning mechanism and an amplifying assembly. The accessory fixing assembly is fixedly installed on the device base, and the watch The fixing mechanism is slidably installed in the groove provided on the device base, the angle positioning mechanism is fixedly installed on the device base, the magnifying component is fixedly installed on the device base, and the angle positioning mechanism is engaged with the magnifying component; it has the function of an adjustable magnifying glass, Avoid the damage to the eyes caused by the traditional loupe. It has the function of adjusting the angle of the watch to slow down the damage to the cervical spine. It has the function of fixing parts to avoid accidental dropping of parts.

Provided is an electron microscope with which a sample can be observed stably and with high accuracy. The electron microscope comprises: a sample stage; an electron optical system that scans an electron beam over a sample; a vacuum system that maintains the sample stage and the electron optical system in a vacuum; a secondary electron detector that detects secondary electrons emitted from the sample; transmitted electron detectors that detect transmitted electrons that have transmitted through the sample; and a control device that obtains a secondary electron image and a transmitted electron image on the basis of the secondary electrons and the transmitted electrons detected by the secondary electron detector and the transmitted electron detectors and stores the secondary electron image and the transmitted electron image. The sample stage is provided with cooling means for cooling the sample. The vacuum system is provided with a cold trap that sucks moisture from around the sample and a vacuum gauge that measures the degree of vacuum of the vacuum system.