35results about How to "Reduced operating proficiency requirements" patented technology

The invention discloses a micro thermoelectric module and a production method thereof. The production method includes the following steps: acquiring a thermopile with a sandwich structure, wherein the thermopile comprises a first electrode layer, a second electrode layer and a staggered P-N type thermoelectric sheet array sandwiched between the first electrode layer and the second electrode layer, and processing separating grooves on the thermopile to form multiple thermoelectric units of the array. Compared with the prior art, the micro thermoelectric module and the production method thereof have the advantages that integration of thermopile manufacture and electrode connection processing can be realized only through a precise gas cutting machine, and electrode micro-processing procedures in the prior art are omitted, so that needed equipment and process cost are reduced, requirements on worker operating proficiency are low, and convenience is brought to mass production.

The invention provides a gas chromatographic column and a preparation method used for the separation of volatile gas arsenic compounds, which belongs to the field of chemical detection technique and is used for solving the problem that the normal chromatographic column is not suitable for the separation of volatile gas arsenic compounds. The technical proposal of the invention is that the chromatographic column body is a flexible PTFE column body and the filling material is a power-shaped polysiloxane stationary phase of 80-100 meshes. The filling material is filled by a blowing positive-pressing filling method. The invention can meet the specific requirement of the separation of the gas arsenic compounds and has the advantages of strong plasticity, easy cutting, being convenient for being bent and good adaptability, can bear the low temperature of minus 196 DEG C and the high temperature of 200 DEG C, has outstanding performance of chemical corrosion resistance, and can realize the butting with collecting devices and detection devices conveniently. The blowing positive-pressing filling method provided by the invention has the advantages of convenience, simpleness, low requirementon the operation skillfulness, etc., with the filling density, column effect and repeatability completely meeting the separation requirement of the gas arsenic compounds.

The invention discloses a device for automatically unscrewing multiple screws on a switch. The device comprises a switch fixing base, a screw unscrewing device and a driving device. A fixing groove is formed in the switch fixing base. The screw unscrewing device comprises a support, a driving shaft and at least one driven shaft. The driving shaft is rotationally connected with the support through a bearing. The driven shafts are rotationally connected to the support and can move along the axes of the driven shafts. A driving gear is fixed to the driving shaft. Driven gears are fixed to the driven shaft and used for being engaged with the driving gear. The lower end of each driven shaft is provided with a screwdriver bit stretching into the fixing groove. The support is in sliding connection with the switch fixing base. The driving device controls the screw unscrewing device to operate. The device has the advantages that the purpose of unscrewing the screws arranged on the same face of one switch simultaneously is achieved, labor efficiency is effectively improved, the driving device controls the screw unscrewing device to move, and it is ensured that the numbers of rotating circles of the driven shafts are consistent, so that the unscrewing heights of all the screws are unified, and the requirement for the degree of proficiency of worker operation is also greatly lowered.

The embodiment of the present application discloses a graphics adjustment method, device, device and storage medium, which relate to the technical field of electronic whiteboards, and include: displaying graphics on a canvas; displaying a first writing track in response to a first writing operation received, The first writing track represents a target geometric attribute, and the target geometric attribute includes a length parameter and / or an angle parameter; the graphic is adjusted so that the target geometric attribute is the geometric attribute of the adjusted graphic. The above-mentioned method can solve the technical problem in the prior art that graphics cannot be adjusted accurately and simply.

The invention discloses a main hand operating wrist of a master-slave robot, relates to the main hand operating wrist, and aims to solve the problems that a mechanical arm of a main hand end in the prior art is relatively small in working space, not high in flexibility, lack of force and moment of force feedback information, great in mechanism, lack of sense of force, low in space utilization rate, limited in application occasion, not flexible to operate, complex to operate, incapable of realizing force balance of any position of the mechanical arm, great in load for a doctor to drive the main hand to operate, and fatigable. The main hand operating wrist comprises an arm connector, a first wrist joint assembly, a second wrist joint assembly, a third wrist joint assembly, a fourth wrist joint assembly and a clamping mechanism connector, wherein the first wrist joint assembly comprises a first driver, a first motor, a first shaft coupler, a first shaft, a first absolute type angle encoder, a first housing and two first bevel gears. The main hand operating wrist is used for the field of medical robots.

The invention relates to a method for quantitatively analyzing maleic anhydride, thiourea and thiomalic acid simultaneously. The method comprises the steps of: (1) taking by weighing maleic anhydride, thiourea and thiomalic acid standard substance, preparing a standard solution; (2) taking maleic anhydride, thiourea and thiomalic acid The mixture formed is the test sample, and the test sample solution is prepared; (3) get the standard solution and the test sample solution respectively for high-performance liquid chromatography analysis, conditions: C18 liquid chromatography column, column temperature 25~45 ℃, flowing Phase methanol and phosphoric acid aqueous solution, the flow rate is 0.5-2.0mL / min, the detection wavelength of the ultraviolet detector is 200-235nm, and the content is obtained by the external standard method; the sequence of steps (1) and (2) is not limited. The method can quickly and simultaneously quantitatively analyze the contents of maleic anhydride, thiourea and thiomalic acid, and has high sensitivity, accuracy, stability and reproducibility.

The invention relates to a HPLC (high-performance liquid chromatography) detection method capable of simultaneously detecting contents of six amino acids in a donkey-hide glue blood-supplementing preparation. The method comprises the following steps: providing a donkey-hide glue blood-supplementing preparation sample; providing an amino acid standard sample; respectively adding the donkey-hide glue blood-supplementing preparation sample and the amino acid standard sample into phenylisothiocyanate-acetonitrile solution; uniformly mixing and standing, and respectively adding n-hexane; uniformlymixing and standing once again, respectively extracting lower-layer solutions, and filtering to obtain a derivatized donkey-hide glue blood-supplementing preparation sample solution and a derivatizedamino acid standard sample solution; sucking the derivatized donkey-hide glue blood-supplementing preparation sample solution and the derivatized amino acid standard sample solution, and injecting into a liquid chromatograph to perform amino acid detection. According to the invention, the contents of six major amino acids in the donkey-hide glue blood-supplementing preparation are detected by adopting reversed-phase high-performance liquid-phase, the sample treatment method is simple, the detection method has good specificity, repeatability and accuracy, and the internal quality of donkey-hide glue blood-supplementing granules can be well controlled.

The invention discloses a device and method for punching holes, surface detection and processing of FPC raw materials. The invention can effectively complete the punching, surface detection and surface detection processing of FPC raw materials, saving time and high efficiency; effectively solving the edge warping and deformation during the punching process of FPC raw materials, high punching precision, and skilled operators The requirements of the degree are reduced; FPC raw material defect detection and defect detection processing can be carried out simultaneously.