57results about How to "To achieve the purpose of measurement" patented technology

The invention discloses a method for quantitatively analyzing enrichment and distribution of micro plastics in aquatic organisms and belongs to the field of environment pollutant detection. The method is a method for quantitatively analyzing micro plastics in aquatic organisms based on the fluorescence tracer technology. The method includes the steps that tested fluorescent micro plastics and mode aquatic organisms are selected for poisoning experiments; target tissue samples are acquired; tissue is decomposed through nitric acid, and the volume of obtained decomposition liquid is made constant; fluorescent micro plastics turbid solutions in different concentration gradients are prepared, and a standard curve is obtained through fluorescence values measured by a fluorescence spectrometer; the fluorescent value of a sample solution is measured, and the content of micro plastics in the corresponding tissue samples is obtained based on the standard curve. By means of the technical scheme, micro plastics ingested in aquatic organisms can be accurately and quantitatively measured, and the purpose of detecting enrichment and distribution of micro plastics in aquatic organisms is achieved.

The invention discloses a device for detecting rigidity of a gyration reduction gear. The device includes a foundation base, a connection base, a first driving mechanism, a second driving mechanism, a displacement testing device and a control center; the connection base includes a connection-base bottom base, a connection-base support column, a first actuating arm and a second actuating arm, wherein the first actuating arm and the second actuating arm transversely stretch out from two opposite sides of the top of the connection-base support column; the first driving mechanism includes a first driving part and a first retractable part, and a first force sensor is arranged on the joint between a free end of the first retractable part and the first actuating arm; the second driving mechanism includes a second driving part and a second retractable part, and a second force sensor is arranged on the joint between a free end of the second retractable part and the second actuating arm; the displacement testing device is used for testing displacement values of the tested gyration reduction gear under the effect of a testing load; the control center is in communication connection with the first driving mechanism, the second driving mechanism, the first force sensor, the second force sensor and the displacement testing device. According to the device for detecting the rigidity of the gyration reduction gear, the torsional rigidity of the gyration reduction gear and the flexible rigidity of the gyration reduction gear can be tested mechanically.

The invention provides an adjustable opening measuring scale. Two slip rotating bases of hollow cylindrical sleeve structures are arranged on a measuring scale main rod in a sleeving manner, the sliprotating bases can move front and back and rotate on the measuring scale main rod, locking nuts are connected to the slip rotating bases through threads, the locking nuts can be screwed to fix the slip rotating bases on the measuring scale main rod, a measuring head is connected to each slip rotating base through threads, the end part of the measuring head is conical, base limiting end covers forpreventing the slip rotating bases from sliding out from the measuring scale main rod are arranged at both ends of the measuring scale main rod, a long ruler is used for measuring the actual distancebetween tip locations of the two measuring heads, so as to measure the distance between any two points; and the the measuring head can slide back and forth and rotate with the slip rotating bases, itcan be ensured that the tip location of the measuring head coincides with the center point of a measured cross line, the measuring head can be replaced to achieve different measurement purposes, and the adjustable opening measuring scale provided by the invention has a simple structure and a good measurement effect.