39results about How to "Improve sampling productivity" patented technology

The invention discloses a portable biological sample storage device, and relates to the technical field of biological sample storage devices. The portable biological sample storage device comprises abox, a supporting plate, a first fixing plate and a second fixing plate are sequentially and fixedly connected between the two sides of the inner wall of the box from bottom to top, a containing holeis formed inside the second fixing plate, clamping grooves are formed in the portions, located on the two sides of the containing hole, inside the second fixing plate, springs are fixedly connected tothe inner walls of the clamping grooves, pushing plates are fixedly connected to the ends, away from the inner walls of the clamping grooves, of the springs, connecting rods are fixedly connected toone sides of the pushing plates, and the ends, away from the pushing plates, of the connecting rods penetrate through the containing hole and extend inside the containing hole. According to the portable biological sample storage device, biological samples can be conveniently stored, time of workers is saved, the sampling working efficiency of the workers is improved, and the protection effect on collected samples can be achieved.

The invention discloses a soil sampling device for monitoring soil environment. The device comprises a movable base body, wherein four corners below the movable base body are provided with roller fixing frames which are provided with roller shafts, the roller shaft is provided with a roller, the roller rotates to drive the movable base body to move, a driving device is arranged below the movable base body, the roller is driven by the driving device to rotate on the roller fixing frame through the roller, the movable base body is provided with an angle rotation adjusting mechanism, the angle isadjusted by rotating the angle rotation adjusting mechanism, a hammering drilling mechanism is arranged on the movable base body, the soil is sampled by the hammering drilling mechanism, the movablebase body is provided with a sampling extraction mechanism, soil is taken out through the sampling extraction mechanism, and the movable base body is provided with a controller. The soil sampling device for monitoring soil environment has the beneficial effects of simple structure and strong practicability.

The invention discloses a positive and negative pressure combined plug flow fixed-point sampling device, which includes a double-wall drill rod, a drill bit, a four-way connector, a three-way connector, a negative pressure generator, a gas-solid gravity separator and a sample collection tank, as well as an annular nozzle ejector disposed in the drill bit. The rear end of the double-wall drill rod is sleeved with a two-channel faucet on the outside. The first channel of the two-channel faucet is connected to a first interface of the four-way connector, and the second channel of the two-channel faucet is connected to a first interface of the three-way connector. The second interface of the four-way connector is communicated with the second interface of the three-way connector. The third interface of the four-way connector is connected to the first air inlet of the negative pressure generator. During sampling, a material plug with a section of a sample and a section of compressed air is formed in a double-wall drill rod in-inner wall channel, and has small motion resistance in the double-wall drill rod in-inner wall channel. Driven by a negative pressure, the sample moves fast, and the sampling work has high efficiency. No plugging or drilling is needed in a sampling process, and the process is simple. Sampling can be performed at any drilling point, thus realizing fixed-point sampling.

An automatic powder supply and trace detection device for extracting fingerprints by means of crime scene powder method and powder supply method thereof; an air pump (3) is in electrical communication with a battery (1), and an air outlet end of the air pump (3) is in communication with a powder bottle (7); an ultra-microporous fluidised bed (10) is installed inside the powder bottle (7), the trace detection powder in the powder bottle (7) being accommodated above the ultra-microporous fluidised bed (10); pressurised air outputted by the air pump (3) passes through the ultra-microporous fluidised bed (10) from below the ultra-microporous fluidised bed (10), forming a plurality of independent air streams acting on the bottom of the trace powder, and producing a mixed gas on the surface of the trace detection powder; one end of an outer shell (22) is provided with a nozzle (20) having a nozzle opening, and a brush head (13) surrounds the nozzle opening, a mixed gas pipe (8) being hermetically connected to the nozzle opening being arranged inside the powder bottle (7), the mixed gas produced in the powder bottle (7) being conveyed to the brush head (13) of the nozzle opening by means of the mixed gas pipe (8), and the trace detection powder in the mixed gas coming into contact with a fingerprint trace and attaching to the surface of the fingerprint trace to form a clear image. The automatic powder supply and trace detection device improves the working environment of police officers, reduces the amount of powder used, and increases the efficiency of sampling work.

The invention relates to a trace detection tool in the field of public security criminal investigation, in particular to an automatic powder trace detection device and a powder supply method for extracting fingerprints by powder method at a crime scene. The front cover and the rear cover and the base are respectively installed on the bracket , the air pump and the powder bottle are respectively housed in the inner space formed by the back cover and the bracket, the base and the bracket, and are installed on the bracket respectively, the spray tube is placed in the front cover, one end is hinged with the bracket, and the other end is installed with a fluffy brush; The fluidized bed is located below the powder contained in the powder bottle. The lower end of the powder bottle is connected to the air pump, and the upper end is connected to the spray barrel through the airflow conduit; the pressurized gas provided by the air pump is "boiling" the powder through the fluidized bed. The mixed gas with powder is sprayed onto the trace inspection working surface through the nozzle, the flowing powder touches the trace and is adsorbed on the surface of the trace to form a clear image. , the image after brushing is clearer and more stable.

The invention relates to a shipborne automatic water quality sampler, which mainly includes a sample collector and a sample storage box. The sample collector is composed of a support frame, a suspension device, a sample suction device, a sampling bucket and a controller. The sample storage box consists of a storage box body, a sample bottle and a sample splitter. The sample collector and sample storage box of the shipborne automatic water quality sampler adopts a split structure, can be suitable for installation and use by various manned and unmanned ships. Water quality samples of different depths can be collected into a designated sample bottle automatically, thus improving the automation level and sampling efficiency of water quality sampling work. The sampling bucket has a sampling way identical to manual sampling, a water sample at the position where the bucket is located can be acquired precisely, and the objectivity and accuracy of the sampling result can be effectively guaranteed.

The invention relates to a deep-trough ore pulp sampler. The deep-trough ore pulp sampler comprises a handle, a hollow pipe, a piston connecting rod, a tensioning spring, a piston-connecting-rod positioning block, a connecting body, a piston, a sampling barrel and a piston fixing block. The deep-trough ore pulp sampler is novel, unique, simple, convenient, rapid, and safe, flexible and reliable in operation and use, sampling working efficiency can be greatly improved, and the deep-trough ore pulp sampler is a great innovation in ore pulp samplers and ways; the problems that vertical positioning sampling in continuously-stirred ore pulp can not be achieved, consumed time is long, sample representativeness is poor, and potential safety hazards in sampling are large are effectively solved.

The invention provides an underground water sample collecting device and method for a multichannel monitoring well. The collecting device comprises N sample collecting and storing units and a multi-distributing valve; the sample collecting and storing units are used for containing N collected underground samples, and water inlets of the sample collecting and storing units extend to corresponding selected sampling positions of the multi-channel monitoring well; the multi-distributing valve is provided with N+1 ports, one port is connected with a pump, and the other N ports are connected with water outlets of the N sample collecting and storing units respectively; the water outlets and the water inlets of the N sample collecting and storing units are each provided with a water stop valve, wherein N is a positive integer larger than or equal to 2. According to the device, the sampling time of the nested multi-channel monitoring well can be shortened, and the outdoor underground water sampling working efficiency can be improved.

The invention discloses a lunar surface sampling trinity flight control collaborative work process optimization method, which compiles the fixed regular commands in the collaborative work program into a command chain. During the task implementation process, the task support center only needs to apply to the control center once, A series of actions can be completed, which greatly reduces the interaction between systems; the pre-established instruction library, in the process of task implementation, can quickly select the corresponding instruction from the instruction library to quickly form a temporary instruction plan when dealing with on-site decision-making problems. The number of on-site generated commands is greatly reduced; the command optimization method is adopted, which reduces the number of command injections during the lunar surface sampling period and improves the sampling efficiency; the comprehensive use of the above optimization methods makes the lunar surface sampling Trinity flight control collaborative work efficiency greatly improve.