8 results about "Test patch" patented technology

The invention discloses a monopole directional diagram reconfigurable antenna based on RF MEMS switch control, and belongs to the field of radio frequency front-end devices. The antenna is composed of a monopole radiation unit, parasitic units located on the left side and the right side of the monopole radiation unit, a composite beam ohmic contact type MEMS switch, a direct current bias line, a test patch bonding pad, a coplanar waveguide, a gradient microstrip line, a dielectric substrate and a metal ground backboard. When the MEMS switch on the parasitic unit is switched on, the length of the parasitic unit is slightly smaller than that of the monopole radiation unit, and the parasitic unit plays a role of a director. When the MEMS switch is turned off, the first-stage leading unit is divided into two parts from the fracture, the length of the first-stage leading unit is far smaller than that of the monopole radiation unit, and backflow is generated by the open circuit of the terminal, so that the effect of reducing and offsetting the second-stage leading unit is achieved. When the switch on one side is pulled down, a directional diagram generates beam deflection towards the side where the switch is closed, the adjustable deflection angle can reach 41 degrees, the gain can reach 6.14 dB, the beam width is about 90 degrees, when the switches on the two sides are both switched off, the beam deflection is 0 degree, the directional diagram points to the positive Z axis, and the gain is 5.15 dB.

The invention belongs to the technical field of geotechnical engineering, and provides a hole wall strain relief ground stress test patch device and a test method.The hole wall strain relief ground stress test patch device comprises an air bag, at least three sets of strain rosettes are arranged on the outer wall of the air bag in the axis direction of the air bag, and each strain rosette is composed of four strain gauges in different directions; the strain gauge is clamped in a bracket arranged on the outer wall of the air bag; the air bag is inflated or deflated through the air guide piece, so that the air bag is switched between a relaxed state and an expanded state; when the air bag is in a loose state, a gap exists between the outer wall of the air bag and the surrounding rock; when the air bag is in an expansion state, the strain gauge and the bracket are adhered to the surrounding rock through an adhesive. Measurement failures caused by various factors are effectively avoided, and the success rate and the result accuracy of single-point primary rock stress testing and the drilling utilization rate are greatly improved.

The invention relates to AI-based defect detection for non-destructive inspection. The present disclosure provides methods and techniques for anomaly detection using a feature matching model. A plurality of normal images are received. A plurality of patch features is generated by processing each of the plurality of normal images. A core set is generated that includes one or more core set samples, where the one or more core set samples are selected from a plurality of patch features. A test image is received. One or more test patch features are generated by processing the test image. An anomaly score is generated by comparing the one or more test patch features to the one or more core set samples.

The application provides a gas-solid two-phase erosion test device with an in-pipe patch, which comprises a control system, a gas supply system, a feeding system, a heating system and a gas-solid separator; the control system is connected with the gas supply system, the feeding system and the heating system; the heating system comprises a test pipe section, a heat tracing band, a temperature controller and a plurality of test patches; the temperature controller is on the test pipe section, the heat tracing band is wound on the outer wall of the test pipe section and is connected with the temperature controller; the plurality of test patches are arranged on the inner wall of the test pipe section, the plurality of test patches are distributed along the circumferential direction of the test pipe section, and the angle between each test patch and the inner wall of the test pipe section is the same or different. The minimum adjustable number of the device is 1°, the device can be used for small erosion angle experiments and the angle is easy to control, in addition, the test range is large, the test method is more accurate, and the temperature can be accurately controlled; the whole system is a semi-automatic system and is easy to operate.

A liquid discharge apparatus is provided that includes a liquid discharger that discharges a liquid onto a transfer base material, an imager, a heater that applies energy to the transfer base material onto which the liquid is discharged to heat the transfer base material, and circuitry. The liquid discharger forms a test patch, with ink as the liquid, on the transfer base material separately from a portion where an image is formed, the imager captures an image of the test patch, and the circuitry is configured to determine an amount of ink bleeding in the transfer base material based on the image captured by the imager, and controls the heater to perform heating based on the amount of ink bleeding.

The present invention discloses a monopole pattern reconfigurable antenna based on RF MEMS switch control, belonging to the field of RF front-end devices. The antenna comprises a monopole radiating element, parasitic elements located on its left and right sides, a composite beam ohmic contact MEMS switch, a DC bias line, a test patch pad, a coplanar waveguide, a gradient microstrip line, a dielectric substrate, and a metal ground backplane. When the MEMS switch on the parasitic element is on, the parasitic element is slightly shorter than the monopole radiating element and acts as a director. When the MEMS switch is off, the primary director element is split into two at the break, its length being much shorter than the monopole radiating element, and the terminal is open, generating backflow, which offsets the effect of the secondary director element. When one switch is pulled down, the radiation pattern undergoes beam deflection toward the side of the closed switch, with an adjustable deflection angle of up to 41°, a gain of up to 6.14dB, and a beam width of approximately 90°. When both switches are off, the beam deflection is 0°, the radiation pattern points toward the positive Z axis, and the gain is 5.15dB.

Dual-compartment sachet. Flexible sachet (10) containing at least one composition, comprising at least two walls (12, 13) welded together and delimiting a main compartment (16) and a secondary compartment (17) for a test patch, having a smaller capacity than the main compartment, the main compartment being filled with said composition and the two compartments communicating with each other by at least one passage (18; 18a) of reduced cross-section, the sachet having a first opening zone (30) to be opened to empty the secondary compartment (17), the first opening zone (30) being disposed downstream of the passage (18; 18a) of reduced cross-section, the secondary compartment (17) being arranged to contain a maximum volume of composition of between 0.2 mL and 2 mL, in particular between 0.2 mL and 1 mL. Figure for abbreviation: Fig. 1

A system and method for use in determining skin dryness by processing images of a test patch of the kind comprising a membrane impregnated with a moisture indicator which has a first colour in the dry anhydrous state, and which changes to a second colour at a certain moisture content which corresponds to normal skin moisture are disclosed. A user operable computer device having a camera, a processor, and an area of memory, a computer program stored in the memory of the user operable device, a scorecard having at least one colour reference target in which the computer program causes the user operable computer device to process an image of the scorecard with a test patch placed on it after the test patch has been applied to an area of skin, the processing determining a dryness of the area of the skin.