30results about How to "Difficult to disturb" patented technology

A detector (110) for determining a position of at least one object (118) is disclosed. The detector (110) comprises:

• • at least one optical sensor (112), the optical sensor (112) being adapted to detect a light beam (150) traveling from the object (118) towards the detector (110), the optical sensor (112) having at least one matrix (152) of pixels (154); and
  • at least one evaluation device (126), the evaluation device (126) being adapted to determine a number N of pixels (154) of the optical sensor (112) which are illuminated by the light beam (150), the evaluation device (126) further being adapted to determine at least one longitudinal coordinate of the object (118) by using the number N of pixels (154) which are illuminated by the light beam (150).

The invention discloses a method for preparing gold nanorods and belongs to the field of nano material preparing. The method includes the following steps that firstly, a mixed solution of quaternary ammonium bromide, oleate, chloroauric acid hydrated, silver nitrate, an acid solution and ascorbic acid is prepared, and a growth solution is obtained; secondly, in a cetyl trimethyl ammonium bromide surface modifying solution, strong reductant sodium borohydride is used for restoring the chloroauric acid hydrated to obtain a gold seed solution; thirdly, the gold seed solution is injected into the growth solution for reaction for 3-15 hours, and the gold nanorods are obtained. The method for preparing the gold nanorods has the advantages that the requirement for equipment is low, the method is easy to operate, conditions are gentle, reproducibility is high, and large-batch preparing can be conducted; the obtained gold nanorods are high in yield which can reach 99 percent or higher, consistency is high, the variable coefficient of length and the variable coefficient of width are within 10 percent, the length-diameter ratio can be regulated in the large range of 1.5-8, and a solid foundation is laid for practical use of the gold nanorods.

The invention provides a drilling device of a pre-drilling type lateral pressure test. The drilling device comprises a cutting ring soil miller, a spoon-type drill, a drill bit, a locator, drilling rods, outer rods, a connecting rod and a baffle. A hole forming method for carrying out the pre-drilling type lateral pressure test through the device comprises the steps that 1, an instrument is assembled, wherein the drill bit and the wall of the spoon-type drill are connected, the wall of the spoon-type drill is connected with the connecting rod, and the connecting rod is connected with the drilling rods; 2, drilling is carried out, wherein drilling is stopped when the locator is in contact with the ground surface, the center of the cutting ring soil miller is aligned to the locator to be vertically pressed into the underground, the baffle is arranged on the corresponding outer rod at the upper end of the cutting ring soil miller, and the cutting ring soil miller is vertically pressed into soil by pressing the baffle through the gravity of a drilling machine or hammering the baffle through a heavy hammer; 3, testing is carried out; and 4, drilling continues to be carried out, and the lateral pressure test of different depths in the same drilled hole is carried out. The device is simple in structure, detachable, convenient to manufacture and maintain, safe, stable, easy to operate, low in manufacturing cost, high in drilling speed and high in hole forming quality, the construction period can be remarkably shortened, and the adverse effect of hole collapse and hole shrinkage to the result of the lateral pressure test is eliminated.

The invention discloses a sampling method for original state sandy soil. The method comprises the following steps: assembling a force applicator, a sampling sleeve and a soil taking cutting edge; for the sandy soil to be sampled, cleaning a soil layer covered above the sandy soil; carrying out freezing treatment on a sandy oil area to be sampled to solidify sandy oil in the area; pressing a sampling device for the sandy soil into the soil layer through the force applicator until the whole sampling device is full of a soil sample; clearing a soil body around the sampling device for the sandy soil, and forming an annular empty slot around the sampling device; slightly shaking the sampling device for the sandy soil to separate the sandy soil on the bottom end of the sampling device from the sampling device, and taking the sampling device out of the soil body; disassembling the force applicator, removing the residual soil body on the top end of the sampling sleeve, and installing an upper sealing cover; and disassembling the soil taking cutting edge, removing the residual soil body on the bottom end of the sampling sleeve, and installing a lower sealing cover. The method has the advantages that sampled sandy soil is less disturbed and is unlikely to become loose, and the original state sandy soil can be conveniently sampled, packaged, transported and transferred.

The invention discloses an auxiliary test device specially used to study bending performance of small bars, the auxiliary test device includes a base with supporting function, both sides on the top of the base are provided with an I-shaped guide rails, load application mechanisms are arranged left-right symmetrically inside the guide rail on the upper part, bar clamping mechanisms are arranged left-right symmetrically at the middle of the guide rail, and vertical deflection measurement systems are arranged left-right symmetrically outside the guide rail; and the load application mechanisms and the bar clamping mechanisms can slide along the guide rail right and left. Advantages are that: 1) bars with different lengths, different heights of sections can be clamped, the bending performance of the small bars with different lengths, different heights of sections can be studied, and ideal fixed constraint can be formed at both ends of the bars; 2) a plurality of adjustable concentrated loads can be applied to any position in the upper end surface of a bending bar along the axial direction of the bending bar; 3) vertical deflection of multi points at any position in the upper end surface of the bending bar can be simultaneously detected by a vertical deflection measurement device along the axial direction of the bending bar.

The invention relates to a geotechnical investigation sampling device for architectural design, and relates to the field of geotechnical investigation engineering.The geotechnical investigation sampling device comprises a sampling support and a supporting barrel fixed to the sampling support, a rotary drilling outer barrel is arranged on the supporting barrel in a penetrating mode, a sampling inner barrel is arranged in the rotary drilling outer barrel, and a sampling opening is formed in the bottom end of the sampling inner barrel; a sealing mechanism is arranged between the sampling inner cylinder and the rotary drill outer cylinder, the sealing mechanism comprises a mounting ring plate, a plurality of sealing blades and a driving assembly, the mounting ring plate is fixed on the sampling inner cylinder, the plurality of sealing blades are arranged along the circumferential direction of the mounting ring plate, and every two adjacent sealing blades are arranged at intervals in a staggered manner in the axial direction of the sampling inner cylinder; all the sealing slices are connected with the driving assembly, and the driving assembly is used for driving the sealing slices to rotate towards the sampling opening so as to seal the sampling opening. According to the soil sampling device, a soil sample is not easily disturbed during sampling, and when the soil sample is taken out, soil in the sampling inner cylinder is not easily disturbed by the outside, so that the pollution of the soil sample is reduced, and the accuracy of a subsequent test result is guaranteed.

The purpose of the present invention is to provide a structure of a rare-earth magnet having high coercivity. In order to solve the problem, a rare-earth magnet according to the present invention comprises sheets of elements bonded with each other through a covalent bond 100 and layers comprising a transition metal element 200 laminated with the sheet 100, wherein a rare earth element is arranged within a plane of the sheets.

The invention relates to an anti-skid tunnel structure and a construction method thereof. The anti-skid tunnel structure comprises a tunnel structure passing through a slip mass, wherein multiple upper connecting beams and lower connecting beams are respectively arranged on an arch apex and an inverted arch of the tunnel structure; multiple upper-side anti-skid piles and lower-side anti-skid pilesare respectively arranged on two sides of the tunnel structure; and the upper connecting beams and the lower connecting beams are fixedly connected with the upper-side anti-skid piles and the lower-side anti-skid piles. The construction method comprises the steps of (1) excavating a pile well at a pile position of a predetermined anti-skid pile, and constructing an anti-skid pile retaining wall;(2) pouring concrete on the anti-skid pile to the design height; (3) excavating a tunnel and constructing preliminary bracing; (4) implanting first connecting reinforcement steel bars onto the anti-skid piles, binding connecting beam reinforcement steel bars on the first connecting reinforcement steel bars, binding secondary lining inner reinforcement steel bars, arranging second connecting reinforcement steel bars along a trend direction of the tunnel structure, and connecting the connecting beam reinforcement steel bars and the secondary lining inner reinforcement steel bars through the second connecting reinforcement steel bars; and (5) pouring a secondary lining, the upper connecting beams and the lower connecting beams through a vertical formwork.

The invention provides a device for wirelessly measuring the whole-age humidity of a concrete panel and a use method. The device is characterized in that the device comprises an acquisition device, arelay routing device, and a receiving terminal device, wherein the acquisition device comprises a waterproof shell, and an acquisition circuit board and a battery which are arranged in the waterproofshell; a humidity sensor, an acquisition circuit, a wireless module and a power supply module which are connected in sequence are integrated on the acquisition circuit board; the power supply module is connected with the battery; a probe of the humidity sensor extends out of the waterproof shell, and the extending part of the probe is covered with an e-PTFE film and is in water-tight connection with the waterproof shell through an organic silicon sealant; the relay routing device comprises a wireless gain module and a routing module; and the receiving terminal device comprises a wireless receiving module. The device is ingenious in design, high in precision and good in stability, can monitor the internal humidity of the concrete panel for a long time in a high-humidity environment, and isnot easily disturbed by external conditions.

The invention discloses an anti-leakage connecting plate for steel bar truss floor support plates. The anti-leakage connecting plate comprises a main plate part (31), a first hook part (32) and a second hook part (33), wherein the first hook part (32) is connected with the first end of the main plate part (31) and used for being connected with a male buckle and a female buckle of the first steel bar truss floor support plate (1) in an attached mode, and the second hook part (33) is connected with the second end of the main plate part (31) and used for being connected with a male buckle and a female buckle of the second steel bar truss floor support plate (2) in an attached mode; and the included angle between the first hook part (32) and the main plate part (31) is equal to the bending angle of the male buckle and the female buckle of the first steel bar truss floor support plate (1), and the included angle between the second hook part (33) and the main plate part (31) is equal to thebending angle of the male buckle and the female buckle of the second steel bar truss floor support plate (2). The anti-leakage connecting plate is placed at the overlapped position of the steel bar truss floor support plates, and therefore the leakage phenomenon during concrete pouring can be effectively controlled.

The present disclosure relates to a lens assembly, comprising a lens module and a lens driving mechanism for driving the lens module to move relative to an image sensor, the lens driving mechanism comprising: a base fixedly mounted on the image sensor; a bearing structure which is used for mounting the lens module; a bearing structure which is mounted on the base in a sliding manner through the first sliding rail; a second sliding rail, wherein the extension direction of the second sliding rail is different from the extension direction of the first sliding rail, and the lens module is slidably mounted on the bearing structure through the second sliding rail; a first electromagnetic generating device which is used for generating electromagnetic induction and driving the bearing structure to move along the first sliding rail; and a second electromagnetic generating device which is used for generating electromagnetic induction to drive the lens module to move along the second sliding rail. The lens module always linearly moves along the slide rail and is supported by the slide rail, so that the lens module moves more stably and has higher movement precision, the optical axis of the lens is ensured not to deflect, and the imaging definition is improved.

The invention discloses a nuclear magnetic resonance test non-magnetized saturation test sample preparation device and a preparation method thereof, and belongs to the related field of geotechnical engineering indoor test devices. The device comprises a funnel device and a sample preparation-saturation tube. The funnel device is connected with the sample preparation-saturation tube in an overlapping manner; the sample preparation-saturation tube is made of a polytetrafluoroethylene transparent material with a scale on the side wall; the top of the sample preparation-saturation tube is providedwith a top permeable stone; a saturator hood reversely covers the top permeable stone and the upper part of the sample preparation-saturation tube; the bottom of the sample preparation-saturation tube is provided with a bottom permeable stone; the sample preparation-saturation tube and the bottom permeable stone are located inside a saturator base; clamping slots are formed in both the saturatorhood and the saturator base; a clamping belt is fastened in the clamping slots to fixedly connect the saturator hood, the top permeable stone, the sample preparation-saturation tube, the bottom permeable stone and the saturator base with one another. The device disclosed by the invention is simple in structure; the preparation method is easy to operate; the nuclear magnetic resonance test non-magnetized saturation test sample preparation device and the preparation method thereof are provided.

The invention relates to a float-process microalgae culture system. The float-process microalgae culture system comprises a culture unit, a buffering unit, a circulation unit and an aeration unit, wherein the culture unit comprises a plurality of flexible transparent cylinder bands which are arranged almost horizontally and are used for accommodating culture liquid and microalgae, a correspondingfirst base plate is arranged on the lower side of an inlet end of each flexible transparent cylinder band, a corresponding second base plate is arranged on the lower side of an output end of each flexible transparent cylinder band, the first base plates are higher than the second base plates, and disturbance devices are arranged between the first base plates and the second base plates; the buffering unit comprises a container, and the container is used for receiving the culture liquid and the microalgae which are discharged from the outlet ends of the flexible transparent cylinder bands; the circulation unit is used for transferring the culture liquid and the microalgae from the buffering unit to the inlet ends of the flexible transparent cylinder bands; and the aeration unit is used for inputting preset gas to the culture liquid.

The invention discloses a corner plate of a steel bar truss floor support plate and a cast-in-place concrete beam. The corner plate comprises a corner plate body (61) which is composed of a vertical plate and a transverse plate, and a hook portion (62) which is connected with one end of the corner plate body (61); the hook portion (62) can be buckled with a male-female buckle of the steel bar truss floor support plate (1); an included angle between the vertical plate and the transverse plate of the corner plate body (61) is equal to an included angle between the upper end surface and the sidewall of a beam side mold (4); and the vertical plate of the corner plate body (61) is fixed to the side wall of the beam side mold (4). By means of the corner plate of the steel bar truss floor support plate and the cast-in-place concrete beam, the problem that mortar leakage is prone to occurring at a joint between the steel bar truss floor support plate and the cast-in-place concrete beam duringconcrete pouring is effectively solved.