30results about How to "Simple unit structure" patented technology

The invention discloses a phase-locked loop frequency synthesizer with a loop gain calibration function, including a phase-lock loop and a gain calibration unit. The phase-lock loop is composed of a frequency/phase discriminator, a charge pump, a loop filter, a voltage-controlled oscillator, and a frequency divider; the gain calibration unit is composed of a state machine, a comparator, two analog-digital converter, a reproductive charge pump current source, and a reproductive loop filter resistance R. the invention implements an automatic correction of the loop gain or bandwidth of the frequency synthesizer, the correction is dynamical, elements such as technique, temperature, voltage, longevity and the like are all corrected automatically, its unit structure is simple, a power consumption is low, and the invention is specially suitable for the wireless radio frequency requiring a stable loop gain.

The invention discloses an anti-Compton scattering detector, which comprises a main detector made of the sodium iodide material. The lower end of the main detector is connected with a photomultiplier. The main detector is nested into an auxiliary detector compounded of a plastic scintillator. The light guide material is arranged between the main detector and the auxiliary detector. The upper end of the auxiliary detector is connected with the photomultiplier. The lower end of the auxiliary detector is provided with a lead shielding ring. According to the invention, the background influence of natural gamma-ray scattered photons (Compton effect) is reduced to the maximum extent. Meanwhile, the accuracy of the in-situ environment gamma-ray detection result is improved. The structure unit of the detector is simplified and the power consumption of a complete machine is lowered.

The invention discloses a ferro-electric field effect transistor based on a structured carbon nano tube striped array and a manufacturing method of the ferro-electric field effect transistor. According to the unit structure of the transistor, a bottom electrode layer (1) is arranged on the bottom layer, a ferro-electric film insulated gate layer (2) and a structured carbon nano tube striped array channel layer (3) are sequentially arranged on the middle layer, and a top layer is arranged on the structured carbon nano tube striped array channel layer (3) and comprises a transistor source electrode (4) and a transistor drain electrode (5); carbon nano tubes are single-walled carbon nano tubes, or double-walled carbon nano tubes or multi-walled carbon nano tubes. According to the ferro-electric field effect transistor, the on-state current and the switch ratio are large, carrier mobility is high, the starting voltage is small, the storage window is wide, and meanwhile the ferro-electric field effect transistor has the advantages of being simple in structure and a buffering layer is not needed, interface contact between a ferro-electric layer and a semiconductor layer is good, and large-area soft devices are easy to obtain. The manufacturing method is simple in technology, convenient to operate and low in cost and dispense with expensive equipment, and large-area and large-scale industrial production is easy to realize.

The invention discloses a device and a method for generating spectral amplitude code marks based on a tunable optic filter. The spectral amplitude code mark generation device comprises a swept laser source, a random digital signal generator, a Fabry-Perot tunable optic filter and an electro-optic strength modulator; the swept laser source, the Fabry-Perot tunable optic filter and the electro-optic strength modulator are connected with one another; and the random digital signal generator is connected with the electro-optic strength modulator. The spectral amplitude code mark generation process can be finished only by one laser and one tunable optic filter, so that the sensitivity of the coding and marking speed of a spectral amplitude code mark exchange system is improved greatly, the structure of the spectral amplitude code mark generation unit is simplified and the marking speed is improved greatly; and meanwhile, the device and the method are simple and easy and have strong actual operability.

The invention relates to an advanced municipal sewage treatment process which comprises the flows of anaerobic pool, oxidation ditch pool, aerobic pool and MBR (membrane bioreactor) membrane pool. The process has two backflow paths: oxidation ditch pool-anaerobic pool and membrane pool-oxidation ditch pool. The pretreated municipal sewage flows through the anaerobic pool, the oxidation ditch pool, the aerobic pool and the membrane pool in sequence, and finally undergoes membrane filtration to obtain treated water. When the process is used for treating municipal sewage, extra addition of carbon source and phosphorous removal drug is not needed, the total nitrogen removal rate and the total phosphorous removal rate can be up to 95% at the same time, the total nitrogen concentration of effluent is less than 5mg/L, the total nitrogen concentration is less than 0.3mg/L, and the other indexes satisfy the national level-I A discharge standard. In the prior art, the total nitrogen removal rate is 62-80% in general, and the total phosphorous removal rate is 70-96.2% in general.

The invention discloses an integrated tap water purification system which comprises a total inlet valve, an ultrafiltration processing unit, an ultravoilet disinfection unit, a water storage unit and a plurality of user terminals arranged in a building and further includes a row of gutters. Before tap water enters a household, an ultrafiltration system is adopted to conduct first-level purification processing on the overall water quality, pollutants such as particles, suspended matter, colloid and bacteriovirus in water are removed, and the overall water quality for drinking is improved. After the tap water enters the household, water supply with different water qualities is conducted according to purposes, in other words, water for washing and cleaning directly adopts water output from the ultrafiltration system, and various household water equipment and elements are effectively protected; for direct drinking and cooking water, a home-entry direct water dispenser is mounted, water quality is further improved, the standard of direct drinking water is met, and the processed water is directly drunk by users. The integrated purification system is simple in unit structure, low in consumption and more convenient to maintain.

The present invention discloses a kind of magnetic RAM (MRAM). The MRAM unit has bit line BL and word write line WWL in the same side of magnetic film memory unit, and the magnetic film memory unit is connected to the drain of the transistor ART via the contact hole. MRAM unit has ground line GND and the word write line WWL configured in the identical metal wiring layer. This structure has the advantages of reduced metal wire layers and contact holes, simplified technological process, lowered manufacture cost and raised MRAM integration level.

The invention relates to a continuously electrically switchable transmissive electrooptical element ( 10 ) for a glass pane arrangement ( 11 ) for windows, doors, partitions, fabade displays and the like, provided with a liquid crystal layer ( 30 ) upon whose both sides a transparent electrode ( 27, 33 ) is respectively arranged; also provided with a respective carrier substrate ( 26, 34 ). In order to ensure that the light polarizators are protected against external influences and to enable the transmissive electrooptical element ( 10 ) to be produced in an economical manner, a respective light polarisation layer ( 25, 35 ) is provided inside the element ( 10 ) of the liquid crystal layer ( 30 ) in an directly or indirectly adjacent position.

The invention discloses a second valve cover transposition unit for electromagnetic valve cover machining equipment. The second valve cover transposition unit for the electromagnetic valve cover machining equipment comprises a valve cover transposition connecting plate. Two longitudinally parallel valve cover fixing frames are installed on the upper end surface of the valve cover transposition connecting plate. A first valve cover transposition linear guide rail is arranged on the upper end surface of each valve cover fixing frame. The front end of each first valve cover transposition linear guide rail is provided with a V-shaped oblique opening. Valve cover limiting assemblies are arranged in the positions, located on the outer sides of the two first valve cover transposition linear guide rails, of the valve cover fixing frames. A first valve cover transposition connecting plate is installed on sliding blocks of the two first valve cover transposition linear guide rails. A valve cover handle is installed on the left side surface of the first valve cover transposition connecting plate. A dust-proof plate is installed at the edge of the first valve cover transposition connecting plate. By means of the mode, a valve cover can be accurately positioned and clamped through the second valve cover transposition unit, so that the working efficiency is improved.

The invention relates to the technical field of biological medicine production, and particularly relates to a full-automatic sterile connection reactor sampling unit. The full-automatic sterile connection reactor sampling unit comprises a unit mounting bottom plate, wherein a peristaltic pump is mounted on the left upper side of the front surface of the unit mounting bottom plate; sampling pipelines are mounted on the front surface of the unit mounting bottom plate and are positioned on two sides of the peristaltic pump; an electromagnetic valve is mounted on the front surface of the unit mounting bottom plate and is positioned on the right side of the peristaltic pump; a sampling needle is mounted on the front surface of the unit mounting bottom plate and is positioned on the lower side of the electromagnetic valve; a pipe clamp is mounted on the left upper side of the front surface of the unit mounting bottom plate; a one-way valve is mounted on the left side of the front surface of the unit mounting bottom plate and corresponds to the sampling pipelines; a reactor tank connector is mounted on the left lower side of the front surface of the unit mounting bottom plate; a liquid storage bottle is arranged on the lower side of the front surface of the unit mounting bottom plate; and an air filter is mounted on the left side of an end of the liquid storage bottle. The full-automatic sterile connection reactor sampling unit is simple in integral structure, and data of a whole process can be acquired and stored.

The invention discloses a bionic snake-shaped robot and a control system capable of shifting and connecting. Each steering gear and two connectors at the head and the tail are combined to form a motion unit, and a gear inside the connector is used to cooperate with a spring-ball assembly. , so that the robot can freely switch between the orthogonal connection and the parallel connection; the gait code is based on the meandering motion, and expands a variety of gaits such as U-shaped flip, sideways motion, traveling wave motion, and spiral rise. The invention can realize gear switching and gait selection under the premise of small size, and is used to improve the overall efficiency of the robot.

The invention discloses a resistance loading square ring ultra-wideband wave-absorbing structure which comprises a surface skin dielectric layer, an impedance matching dielectric layer, a resistance loading square ring functional layer, a functional layer substrate, a structure supporting dielectric and a conductive reflecting layer which are sequentially arranged from top to bottom. The resistor loading square ring functional layer is composed of N * N square ring loops, each square ring loop is composed of a plurality of conductive square plates and a plurality of resistors, the conductive square plates are connected through the resistors to form a closed loop of the square rings, and the conductive square plates and the resistors are evenly distributed on the loop. The resistor loading square ring ultra-wideband wave-absorbing structure is simple in structure, wide in wave-absorbing frequency band and efficient in wave-absorbing performance, ultra-wideband high-performance electromagnetic wave absorption can be achieved, and the resistor loading square ring ultra-wideband wave-absorbing structure has wide application prospects in the fields of stealth technology, RCS reduction, electromagnetic compatibility design and the like.

A pump device (1) is provided comprising: a shaft (2), rotor means (3a, 3b) fixed to said shaft (2) in rotational direction, said rotor means (3a, 3b) having pressure chambers (5a, 5b) the volume of which varying during a rotation of said rotor means (3a, 3b), port plate means (15a, 15b) having a through going opening (16a, 16b) for each of said pressure chambers (5a, 5b) and being connected to said rotor means (3a, 3b) in rotational direction, and valve plate means (17a, 17b) cooperating with said port plate means (15a, 15b). It is intended to pressurize a high volume of fluid, in particular water, within a limited space.