32results about How to "Convenient collection and analysis" patented technology

The invention belongs to the technical field of physical and chemical test, and concretely relates to an apparatus for measuring the PCT curve of a material by using a solid state proton conductor, and a method thereof. The apparatus for measuring the PCT curve of a material by using a solid state proton conductor comprises a solid state proton conductor container, a DC source, a voltmeter, a transfer switch and an electric resistance furnace; when the material is measured, a DC voltage is applied to two electrodes of a proton conductor to measure the change curve of the current intensity of a circuit with the time, hydrogen in atmosphere electro-migrates to a material to be measured and capable of adsorbing hydrogen, and the hydrogen voltage can be calculated by measuring the electromotive force of a hydrogen concentration cell according to the principle of a conductor hydrogen concentration cell; and the content of hydrogen in the material can be calculated by measuring the change curve of the current according to a principle of charge conservation. The apparatus and the method enables the hydrogen pressure and the hydrogen content which are difficult to measure to be directly converted into electric signals, so it is easy to acquire and analyze data, thereby the apparatus and the method have the advantages of fast measurement, low cost and reliable data.

The invention discloses a liquid food quality fingerprint-based identifier. A computer is connected with a signal generation and acquisition controller; a first analog output end of the signal generation and acquisition controller is connected with a constant potential unit; the analog input end of the signal generation and acquisition controller is connected with a current-voltage conversion circuit; the INT end of an analog switch is connected with a second analog output end of the signal generation and acquisition controller; the EA end of the analog switch is connected with the digital output end of the signal generation and acquisition controller; the current-voltage conversion circuit is connected with the analog switch connected with a working electrode conversion device which is connected with a working electrode of a fingerprint collector; and a reference electrode of the fingerprint collector and an auxiliary electrode are connected with the constant potential unit respectively. The identifier has the advantages that: the circuit is simple in manufacturing and stable; the operation is simple and quick; and total liquid food information can be acquired effectively.

The invention discloses an ultrasound online measurement device for wearing capacity. The ultrasound online measurement device for the wearing capacity comprises a friction pair upper test piece, a friction pair lower test piece, an ultrasonic probe, an impulse transmission receiver, a digital oscilloscope and a computer; the friction pair upper test piece is located on the friction pair lower test piece, the ultrasonic probe is located on the bottom of the friction pair lower test piece and is connected with the impulse transmission receiver through a guide line, and the impulse transmission receiver is sequentially connected with the digital oscilloscope and the computer through the guide line; the impulse transmission receiver sends an electrical impulse to the ultrasonic probe to stimulate the generation of an ultrasonic wave, meanwhile, the ultrasonic probe sends back the received ultrasonic wave to the impulse transmission receiver, the ultrasonic wave is sampled and digitalized by the digital oscilloscope, and then self control and data storage in the sampling process are achieved through the computer to calculate the wearing capacity of a friction pair. The ultrasound online measurement device for the wearing capacity has the advantages that the device is non-destructive, the signal is stable, and sampling and the analysis are easy; the structure is simple, the operation is convenient, the effect is good, and the device has wide practicability.

This invention discloses one portable electron nose system based on USB interface, whose smell test and data collection system comprises gas sensitive sensor array with gas input end connected to two electrical valve through three-way tube and two electromagnetic valve; wherein, its signal output end is connected to the data collection card through signal adjust; the data collection card output end is connected to computer through USB interface; gas control system comprises data collection card with output end connected to gas pump of switch circuit; in work, the computer opens gas pump by data collection card according to program firstly to switch gas path to smell collection status to convert the smell into electrical signals by data collection card to computer for process; the collection time is to switch gas path to clear status to delete the smell molecule for next collection.

An SDN-based MPLS network control system and method. The SDN-based MPLS network control system includes: SDN controller, which is used to deliver IP forwarding table, label forwarding table and flow table to the switch. The flow table includes matching IP packets according to the destination IP and matching labeled packets according to the label. ;The switch includes a border switching router and a label switching router; the border switching router is used to receive the IP forwarding table, label forwarding table and flow table, and process the received message according to the flow table; the label switching router is used to receive the label forwarding table And the flow table, and process the received message according to the flow table. The technical scheme of the invention can make full use of the link resources of the whole network to achieve better network flow optimization.

The invention relates to a solid-phase extraction device. The solid-phase extraction device comprises a sampling pump, a pressure meter, a flow meter and a vertically arranged solid-phase extraction unit which are connected with one another in series, wherein the solid-phase extraction unit comprises a lower external adapter, an upper external adapter, a connector and two filtration tanks; the top of the lower external adapter is fixedly connected with the bottom of a first filtration tank; the top of the first filtration tank is detachably connected with the bottom of the connector; the top of the connector is detachably connected with the bottom of a second filtration tank; the top of the second filtration tank is fixedly connected with the bottom of the upper external adapter; the bottom of the lower external adapter and the top of the upper external adapter penetrate through a flow guide pipe; the first filtration tank, the second filtration tank and the connector are internally connected with one another; annular limiting slots are formed in the periphery of the inner wall of the connector; a non-return pressing sheet, a solid-phase extraction film and a support screen plate are arranged in sequence from top to bottom of each limiting slot. The solid-phase extraction device is easy to operate and convenient to transport, and is capable of preprocessing water samples on sampling sites.

The invention relates to a method for removing bitter substance from peony seed oil by adopting a supercritical CO2 extraction technology. The method comprises the specific steps that (a) peony seed oil is pumped into an extraction kettle first, then CO2 is pumped into the extraction kettle, the pressure in the extraction kettle is regulated to be 15-25 MPa, and then standing is performed at the 25-30 DEG C temperature for half an hour; (b) after standing, the pressure is reduced to be 12-18 MPa, continuous CO2 pumping is performed, the extraction process is performed under 12-18 MPa extraction pressure and at the 25-30 DEG C temperature, and oil is collected; (c), the operation is repeated for 5-6 times, and continuous extraction is performed to collect and extract residual oil in the kettle. The method has the advantages that the supercritical CO2 extraction technology is utilized to remove the residual bitter substance in the peony seed oil, the traditional high-temperature operation problem is avoided first according to the method, and no pollutant is left in a product; in addition, the method facilitates separation between the peony seed oil and residual oil and collection and analysis of the residual oil.