6results about How to "Avoid sampling error" patented technology

This utility model discloses an anti-clogging dust sampler sampling rod device, belonging to the technical field of sampling equipment. It includes a dust sampler, a connecting pipe, a first mounting plate, a second mounting plate, and a chamber. One end of the dust sampler is fixedly connected to the first side of the first mounting plate. A threaded sleeve is fixedly installed on the second side of the first mounting plate, with the first and second sides of the first mounting plate facing each other. Both ends of the connecting pipe are fixedly connected to the third side of the second mounting plate and one end of the chamber, respectively. A threaded rod is movably installed on the fourth side of the second mounting plate, with the third and fourth sides of the second mounting plate facing each other. The threaded rod and the threaded sleeve are threadedly engaged. A rotatable toothed ring is installed on the surface of the connecting pipe, and a rotatable gear is installed on the third side of the second mounting plate. The gear meshes with the toothed ring, and the gear is fixedly connected to the threaded rod via a connecting rod, so that the rotation of the toothed ring drives the threaded rod to rotate synchronously through the gear. This structure balances assembly / disassembly speed with secure connection, meeting the requirements for continuous environmental monitoring.

The utility model discloses a kind of smoke sampling devices, belong to sampling equipment technical field.It include smoke sampler body, sampling pipe, sampling gun and support assembly, one side of the sampling pipe is fixedly connected with the smoke sampler body.The smoke sampling device of the application, by adjustable arc-shaped support, can adapt to sampling gun of different diameter or length, solve the problem that existing support cannot adapt to sampling gun of multiple specifications due to size fixed, so that the device is more flexible when facing different sampling needs, improve the versatility and practicality of device, through the design of tripod and support body, and the adjusting rod and locking mechanism slidingly connected in support body, the device can ensure the stability and positional accuracy of sampling gun during sampling process.This avoids sampling error caused by human hand holding or unstable support, improves the reliability of sampling data.

A kind of TMR sensor assembly for detecting urea tank liquid level, including PCB substrate and TMR magnetic control IC arranged on PCB substrate, patch resistance, one end of PCB substrate is provided with blank and narrower connecting end, and connecting end is electrically connected with corresponding connector crimping terminal in connector plastic shell by multiple connecting wires.The utility model has the advantages of smaller size, smaller gear interval can be set, higher resolution compared with traditional dry reed sensor, its life is much longer than the switch life of dry reed, and reliability is greatly improved.

The utility model relates to the technical field of soil sampling, and discloses a farmland soil quality stratified sampling device which comprises a supporting column, a baffle is fixedly connected to the lower end of the supporting column, a disc is rotatably connected to the outer surface of the supporting column, a plurality of lifting columns are slidably connected to the disc in a penetrating mode, and sampling cylinders are fixedly connected to the lower ends of the lifting columns. The initial positions of the sampling cylinders are all located on the upper end face of the baffle, each sampling cylinder can be driven to respectively collect soil at different depths for storage, so that each sampling cylinder collects soil at a specific depth, the problem of inaccurate sampling depth caused by insufficient artificial experience is avoided, a sample of a target soil layer can be more accurately obtained, and the sampling efficiency is improved. Compared with the prior art, errors caused by sampling instability and uncertainty are reduced, the accuracy and representativeness of samples are ensured, more reliable data support is provided for subsequent soil analysis and research, and the situation of wrong conclusions caused by sample pollution or confusion is prevented.

The utility model relates to new energy automobile electric control technical field discloses a kind of relays with sampling function, including shell and the static contact point of being set to the outside of shell, the inside of shell is extended with mounting contact point to static contact point, integrally setting on mounting contact point is the sampling contact point for obtaining sampling signal on static contact point, sampling contact point is electrically connected with the sampling harness for transmitting sampling signal, sampling harness extends to the outside of shell, a kind of relay with sampling function of the utility model, by setting sampling terminal and sampling harness in the shell inside of relay, the redundant harness of relay outside can be effectively reduced, to simplify the harness arrangement in BDU, to improve the heat dissipation performance of relay. By integrally setting sampling contact point on mounting contact point, both the connection stability of sampling contact point and static contact point can be improved, and sampling accuracy can be improved, while avoiding the sampling error caused by unreliable installation.

The utility model discloses a fixed full-automatic pulverized coal sampler which comprises a box body, a partition plate is fixedly mounted in the box body, a placement groove is formed in the partition plate, a through groove is formed in the placement groove of the partition plate, a fixing strip is movably sleeved with the through groove, one side of the fixing strip is fixedly connected with a filter screen, and the other side of the fixing strip is fixedly connected with a dust collector. And a wind chamber is fixedly installed at the upper end of the partition plate, an air outlet is fixedly formed in the upper end of the wind chamber, a turbine is movably sleeved with the wind chamber, and an adapter is movably sleeved with the sealing block. Through the above structure and the standardized design of the filter screen, the cost of spare parts can be reduced, the universality can be improved, sampling errors or equipment faults caused by blockage of the filter screen are avoided through a rapid replacement mechanism, the data accuracy is ensured, the requirement for extra cleaning equipment is reduced, the system complexity is reduced, high-pressure airflow reversely washes the surface of the filter screen, accumulated coal powder is automatically removed, and the working efficiency is improved. The problem that a traditional filter screen is easily blocked is solved.