3 results about "Test series" patented technology

The utility model discloses a kind of urea nozzle test cleaning trolley, by setting test cleaning component, including L-type support, urea nozzle and collection container, the working condition of urea nozzle is simulated on trolley, external cleaning agent, and then realize the effect of quickly cleaning urea nozzle, by repeatedly simulating urea nozzle work, observe the injection state of collection container inner wall, judge whether urea nozzle is cleaned successfully or whether it needs to be replaced.Compared with prior art, the utility model is integrated by low cost design, so that maintenance personnel can efficiently complete urea nozzle cleaning+test series of work, it is convenient for on-site operation, shorten the repair time, improve fault handling rate, reduce the cost of spare parts replacement.

Data processing apparatus comprises a processing module to initiate data handling transactions, for transmission to a data handling module by a transaction interface, in response to successive processing instructions; a verification module connectable to the transaction interface and configured to detect test data, representing an ordered series of communications via the transaction interface generated in response to a test series of processing instructions; in which the verification module is configured to compare two or more instances of the test data generated in response to the same test series of processing instructions and to detect whether the two or more instances of the test data are identical.

Device and method for the non-destructive determination of the hardening state of concrete, wherein a) in a first step, the time course of the concrete hardening of at least one concrete mix is ​​determined by a series of compression tests and simultaneously an analysis of the light reflected from the concrete surface, wherein the analysis of the light reflected from the concrete surface is carried out by spectral analysis, wherein the spectral analysis is carried out for the time of each compression test, so that a concrete mix-specific, time-dependent compressive strength curve with the associated time-dependent spectral profile is determined and stored in a database (8); wherein b) in a second step, a spectral analysis of the light reflected from the surface of a freshly cast concrete component (20) is carried out;wherein c) in a third step the analyzed spectral profile is compared with the spectral profile stored in the database (8) from at least one test series; wherein d) in a fourth step the hardening state of the freshly cast concrete component (20) is determined from the comparison. Method for 3D printing of concrete, wherein a concrete filament (32) is applied to a building surface or a concrete structure (30) and subsequently the hardening state of the concrete is determined according to a method for non-destructive determination of the hardening state.;