30results about How to "Reduce human measurement error" patented technology

The invention relates to the technical field of rainwater drainage, in particular to a method of importing CAD data based on GIS into SWMM. The method includes the following steps: step 1, pre-processing CAD data, deleting and classifying the data before importing so as to be used by GIS; step 2, conducting data verification to verify whet that topological relationship between the node and the pipeline is correct; step 3, conducting GIS data extraction and calculation: including node data extraction, pipeline data extraction, catchment data extraction; step 4, importing that data into the SWMMmodel; step 5, carrying out result and parameter analysis: testing and simulating the imported model. The method has the beneficial effects of saving the SWMM modeling time of the CAD and GIS data sources, improving the model data precision, reducing the human error, realizing the lossless conversion and realizing the parameter determination of the node bottom hole elevation, the characteristic width of the catchment area, the average slope, the water storage quantity of the depression, the impermeability percentage and the like.

The invention discloses an automatic measuring device for a PLC planar lightwave circuit splitter. The automatic measuring device comprises a detecting signal generating module, a luminous power detecting module and a control display module, wherein the detecting signal generating module can provide an optical signal, the optical signal can pass through a component to be tested to enter the luminous power detecting module, the luminous power detecting module can test a power value of the optical signal, the control display module can record a luminous power reference value of the optical signal, the control display module can automatically measure and display an actual luminous power measured value through calculation, and the control display module can control work of other function modules and can read, calculate, store and display work states of all function modules and related parameters. Furthermore, the manual operation function and the computer communication function can be achieved. The automatic measuring device is simple in operation process, high in testing efficiency, capable of being combined flexibly and capable of achieving automatic measurement of multiple channels, multiple indexes and multiple wavelengths at one time.

The invention relates to a needle roller and roller diameter detector, which includes a base, a measuring platform and an instrument. The measuring platform has a concave structure and is fixed on the base; a lifting cylinder is arranged on the inner bottom surface of the measuring platform. A backing bracket is set on the lifting cylindrical rod, and a measuring backing is set on the backing bracket; a platform for placing the measured piece is arranged on the inner bottom of the measuring platform, and the platform for the measured piece is placed on the same side as the measuring backing and the instrument measuring platform. The heads are on the same center line; the upper plane of the measuring platform is equipped with a meter barrel, and a meter barrel fine-tuning nut is arranged below the meter barrel, and an instrument is placed in the meter barrel, and the meter measuring head is fixed on the meter; the present invention The beneficial effect is: it is convenient to detect the outer diameter of the needle roller and the roller, improves the measurement accuracy, reduces human measurement errors, and the measurement speed is five times that of the original lever micrometer.

A patient support and software evaluate spinal instability by controlled isocentric rotation of the spine and measurement of rotation among vertebra to detect damaged vertebra having disproportionately large rotations.

The invention discloses a method and device for measuring the drilling depth through water level. The method comprises the following steps that measurement is conducted for the first time, specifically, the height of a rock-soil sampling device is measured, and the height is defined as h1; measurement is conducted for the second time, specifically, slurry in a slurry pool is conveyed into the holethrough a drill rod by means of a slurry pump, the height from the slurry level in the hole to the ground is measured, and the height is defined as h3; and an instrument is installed, specifically, awater level gauge and a collecting device are installed on the drill rod. The method and the device have the advantages that technicians can be helped to master field operation conditions and measurement results in real time, real-time supervision is achieved, and meanwhile, manual measurement errors are reduced; the problems that according to a traditional measurement method, the number of drilled drill rods is counted manually, the workload of the technicians is increased, the working cost is increased, and the labor efficiency is influenced are solved; and the problems that manual errors and inaccurate measurement results are easily caused by fatigue of workers at present are solved, informatization of measurement can be achieved, and the real-time performance of measurement is improved.

The invention provides a combined positioning device and a positioning method. The combined positioning device comprises a bottom plate and a supporting part; the bottom plate is provided with a first guide rail; the first guide rail is parallel to a bottom plate; the first guide rail is provided with a first sliding block and a second sliding block; the first sliding block and the second sliding block are respectively provided with a first pointer-type dial indicator and a second pointer-type dial indicator; the supporting part comprises a transverse section and a vertical section; the transverse section is fixedly connected with the bottom plate; the vertical section is vertical with the bottom plate; the transverse section is provided with a positioning hole; the positioning hole is used for mounting a probe seat of a probe assembly; the vertical section is provided with a second guide rail; the second guide rail is vertical with the first guide rail; a third sliding block is arranged on the second guide rail; a positioning head is arranged on the third sliding block; the positioning head is parallel to the transverse part; and the positioning head is used for being limited at the center of a magnetic sucker positioning groove of the probe assembly. The combined positioning device and the positioning method have the advantages that the structure is simple, the positioning method is quick, artificial measurement errors are reduced, and the measurement efficiency and the application range of a three-coordinate measurement machine are further improved.

The invention discloses an automatic acquisition device for stator positioning rib welding deformation measurement data. The automatic acquisition device comprises a probe, a probe fixing support, a signal acquisition device, a terminal computer, automatic analysis software, output equipment, an alarm device and monitoring supports, wherein each monitoring support is composed of a support fixing frame, a support base and a support walking mechanism and is fixed to a lower annular plate of a stator annular plate; the probe fixing support comprises a supporting block, an adjustable cushion blockand a probe frame, the supporting block is welded and fixed to the support fixing frame, the adjustable cushion block is installed on the supporting block, the probe frame is welded and fixed to thefront end of the adjustable cushion block, and the probe is fixed to the probe frame; the signal acquisition device and the alarm device are fixed on a support base and are connected with the terminalcomputer through signals; the signal acquisition device is connected with the probe; and the terminal computer is provided with the automatic analysis software. The automatic acquisition device can perform automatic measurement, automatic recording, automatic analysis and real-time alarm, and can perform real-time monitoring when a stator positioning rib of a hydro-generator is welded.

The invention relates to a device and a method for testing hydrogen sulfide stress corrosion resistance of an oil well pipe. The device comprises a stress ring test device, a laser detector, a detector moving device, a horizontal calibration device and a control system, wherein the laser detector is composed of a laser source and a detector rotating device; the horizontal calibration device is composed of a lifting base and a horizontal rod, a detector moving device is arranged on the corresponding rod section, stretching into the liquid storage tank, of the horizontal rod, and the laser detector is installed on the detector moving device and can horizontally move along the sliding way; the laser source in the laser detector can rotate up and down around a horizontal axis under the actionof the detector rotating device; the horizontal rod can be driven by the lifting base to vertically ascend and descend. The stress corrosion performance of the sample can be evaluated by observing thestress ring loading test in real time and measuring the elongation of the sample in the loading process so as to further analyze the non-failure sample without adding extra test and equipment.

The invention discloses a one-dimensional water tank for measurement of a radiotherapy machine. The water tank comprises a first box body, an ionization chamber adapter, a drainage hose and a water level device. The ionization chamber adapter is arranged in the first box body; the ionization chamber adapter is provided with an accommodating cavity penetrating to a side wall of the first box body;the accommodating cavity is used for accommodating an ionization chamber; a drainage hole is formed in the side wall of the first box body, the first end of the drainage hose is connected with the drainage hole, a water outlet platform is arranged at the second end of the drainage hose, a plurality of grooves are arranged in a water level indicator, each groove has a preset height, and the groovesare used for containing the water outlet platform so that the upper surface of the water outlet platform has a preset height. According to the one-dimensional water tank for measurement of the radiotherapy machine, limitation of water surface height measurement in the first tank body is solved, an operator does not need to observe a water surface height through eyes when the one-dimensional watertank is used, measurement time is shortened, and manual measurement errors are reduced.

The invention discloses a combined mold for a static slag resistance test of a machine-pressed brick. The combined mold comprises a magnetic base, a first round table and a reducing screw, wherein thereducing screw is used in cooperationwith the magnetic base and the first round table; the first round table is locatedon the magnetic base; four smallbulging tables are fixedly connected to the position close to the edge of the upper surface of the magnetic base; a base through hole is formed in the center of the upper surface of the magnetic base in a penetrating manner; a second round table isfixedly connected to the center of the top of the first round table. According to the combined mold, the round tables can be fixed in the specific positions of a bottom plate of a machine-pressed brick mold by the arranged magnetic base, overturning or rolling of the slag resistant mold due to material pouring can be avoided, and after the slag resistance test, the diameter position of a cruciblecan be determined on the basis of traces left by the small bulging tables on the magnetic base, so that cutting along the center line of the crucible can be ensured, and data measurement accuracy isensured.