6results about How to "Eliminate test errors" patented technology

The invention discloses a preparation method of a standardized sheet for a thermoelectric test of minerals or mineral materials and alloys, belongs to the technical field of mineralogy, material science and prospecting prediction, and establishes a preparation process of a universal mineral or mineral material and alloy thermoelectric sheet. Covering all semiconductor mineral types or mineral material types such as pyrite, magnetite, graphite and sintered ore; accurate thickness control is achieved through a double-face polishing-loading sheet supporting structure, in-situ testing of the thermoelectricity of minerals or mineral materials and alloys is achieved, and the testing precision is improved; by adopting a conductive adhesive-copper plate composite structure, the interface resistance is reduced, the supporting strength is met, and the requirement of eliminating detection interference is met; residual colloid is thoroughly removed through ultrasonic cleaning, and the insulation effect is avoided; according to the standardized sheet, the hollow aminated phenolic resin nanosphere is used as a conductive substrate and is used for bonding a sample and a copper plate, the contact resistance between the sample and an electrode can be greatly reduced, and the accuracy of test data is improved.

The application provides a valve nozzle detection assembly, relates to the technical field of valve nozzle air leakage detection, and comprises a preliminary detection closed container, a pressure source and a detector. The preliminary detection closed container comprises a preliminary detection mounting plate and a preliminary detection pressure chamber. The preliminary detection mounting plate is uniformly provided with a plurality of preliminary detection mounting holes for mounting valve nozzles, a preliminary detection connecting hole for connecting the pressure source, and a preliminary detection detection hole for mounting the detector. One end of the preliminary detection pressure chamber is sealed, and the other end is provided with a sealing opening for connecting the preliminary detection mounting plate. A sealing element is arranged between the sealing opening and the preliminary detection mounting plate. The pressure source is used for pressurizing the inside of the preliminary detection closed container through the preliminary detection connecting hole. The detector is used for detecting the pressure change in the inside of the preliminary detection closed container through the preliminary detection detection hole. The application can detect a plurality of valve nozzles at a time, improves the detection efficiency, simulates the actual working environment of the valve nozzle, and the detection result is accurate.

The invention relates to a pressure system micro-leakage online monitoring method and device, equipment and a storage medium, and the method comprises the steps: obtaining the identity information of a to-be-monitored pressure system, associating the identity information with the monitoring process, and generating a bound monitoring task; performing pressure initialization; acquiring reference state data (reference pressure and reference temperature) of the to-be-measured pressure system and starting monitoring; in the micro-leakage monitoring process, actual state data of the to-be-measured pressure system at the current moment are circularly obtained and recorded at a preset time interval, and the actual state data comprise an actual pressure value and an actual temperature; according to the reference pressure, the reference temperature and the actual temperature, calculating a theoretical pressure value in a leakage-free state at the current moment; comparing the actual pressure value with the theoretical pressure value to obtain a pressure difference, and judging whether the pressure system leaks or not according to the pressure difference to obtain a monitoring result. The method has the effect of improving the accuracy of the micro-leakage monitoring result of the pressure system.

This utility model relates to the field of fabric testing technology, and in particular to a rapid tear resistance testing mechanism for rolled polyester fabric. The mechanism includes a frame on which a testing device is mounted for testing the tear resistance of the fabric. The testing device includes: a main component comprising a base plate fixed inside the frame, four circumferentially arranged grooves inside the base plate, a front slide frame slidably mounted inside the grooves, a cylindrical seat fixed in the center of the base plate, a rotating plate rotatably mounted on the lower outer wall of the cylindrical seat, connecting rods pivotally connected to the four corners of the bottom of the rotating plate, and the other end of each connecting rod pivotally connected to the bottom of the front slide frame; a driving component on the base plate for driving the rotating plate to rotate; and a clamping component mounted on the front slide frame for clamping and fixing the fabric. Synchronous radial movement achieves adaptive centering and uniform clamping of the fabric, and lever principle amplifies the clamping force, effectively preventing fabric slippage during testing and ensuring accurate and reliable test results.

The utility model relates to a kind of lightweight foaming shoe material testing devices in material testing technical field, comprising: rack;Rotary frame, rotation is connected in the rack front side by pivot, the circumferential of the rotary frame is evenly ringed and is equipped with at least two poking wheels;Annular mounting bracket, it is connected with rack and surrounds the outer periphery of the rotary frame, at least two radial extension installation sliding slot are evenly ringed on the mounting bracket;Clamping assembly, installation is in installation sliding slot, for clamping sample;Driving motor, fixed installation is in the rack, and output end is connected with rotary frame transmission, for driving rotary frame rotation, make poking wheel periodic poking sample and produce bending deformation;The utility model is matched by the cooperation design of multiple clamping assemblies of annular distribution and multiple poking wheels of coaxial rotation, realizes single driving synchronous test multiple groups of samples, and compared with traditional single sample test equipment efficiency has been promoted, and then short research and development verification period can be.

This invention proposes a method and apparatus for measuring ambient temperature based on a liquid antenna, belonging to the field of temperature measurement technology. The method includes: installing a liquid antenna in the environment to be tested; calibrating the correspondence between the resonant frequency of the liquid antenna and the ambient temperature; determining a first resonant frequency corresponding to a preset ambient temperature value based on the calibrated correspondence; measuring a second resonant frequency of the liquid antenna; calculating the difference between the second resonant frequency and the first resonant frequency; and determining whether the difference is within a preset limit range. If so, the ambient temperature is deemed acceptable; otherwise, the ambient temperature is deemed unacceptable. This invention, as a whole, can eliminate test errors introduced by sensor performance aging while ensuring test consistency and accuracy, significantly improving test efficiency and measurement accuracy, and reducing test costs.