38results about How to "Raise the level of measurement" patented technology

A container for containing an amount material or another container. The container includes a support for engaging an arm of a user. The container also includes a handle. The apparatus also can employ an adjustable handle, adjustable from a first position to a second position. The container is particularly suited for drywall administrators and builders.

An optical fiber sensor which functions as a tactile sensor includes a plurality of shearing stress sensor sections including respective optical fibers and a plurality of gratings for reflecting light beams having predetermined wavelengths. The gratings are disposed in the optical fibers and arrayed along a plane parallel to the direction in which a shearing stress is applied from an object to the shearing stress sensor sections. The sensor also includes a perpendicular stress sensor section including an optical fiber and a plurality of gratings for reflecting a light beam having a predetermined wavelength. The gratings are disposed in the optical fiber and arrayed along a plane parallel to the direction in which a perpendicular stress is applied from the object to the perpendicular stress sensor section. Preferably, stress direction converting means such as elastic members for converting the direction of an applied stress are mounted on the optical fibers.

The invention relates to a device for measuring time-domain waveforms of ultrafast pulses. The device comprises a microwave signal source, a femtosecond pulse laser, a light guide probe, a coaxial-to-coplanar converter, a coplanar waveguide and a lock-in amplifier, wherein the microwave signal source provides a microwave signal source for an ultrafast pulse generator and the femtosecond pulse laser, so that the ultrafast pulse generator generates the ultrafast pulses; the coaxial-to-coplanar converter transmits the received ultrafast pulses to the coplanar waveguide to generate ultrafast pulse electric fields; and time-delay lasers stimulate the light guide probe to generate photosensitive currents under the effect of the ultrafast pulse electric fields, and sampling is conducted through the lock-in amplifier. The device has the advantages that the ultrafast pulses with the pulse width of sub-10ps can be measured, the ultrafast pulses transmitted coaxially can be measured, and the ultrafast pulses transmitted in a planar manner can also be measured, so that a new breakthrough in measurement of the time-domain waveforms of the ultrafast pulses is realized, and the level of measurement of instruments, equipment and devices, which can generate the ultrafast pulses, is raised.

A precipitation gauge including a clear elongated outer cylinder and an opaque or translucent inner member disposed longitudinally in the outer cylinder to define a tubular water receiver in the space between the cylinder and the inner member and markings disposed along either the outer cylinder or the inner member, the gauge indicating the amount of water collected in the water receiver with a sharp demarcation at the top surface of the water resulting from an optical illusion making it appear that the portion of the gauge below the demarcation is filled with a fluid of the color of the inner member.

The invention discloses a high-precision integrated explosion protection and detection device, which is an integrated device for detecting and determining existence of an explosive by use of a instantgamma-ray neutron activation analysis technology and with an explosion protection function. The device consists of an explosion protection system, a neutron source item system, a sample detection system, an energy spectrum analysis system, a shielding protection system and a mechanical power system, wherein a neutron source is used for activating a characteristic gamma ray of a detected object, adetector is used for gamma ray collection and energy spectrum measurement, the explosion protection system has a relatively good energy absorption cushioning function, the shielding protection systemis used for implementing dose protection over the environment and a human body and reducing harms of neutrons to the environment and the human body, and the mechanical power system has a convenient measurement function. According to the device, a signal to noise ratio is used as a design and evaluation criterion of the device and the whole device is optimized and designed on the basis of a noveldevice evaluation and optimization method, so that the device is endowed with a relatively high signal to noise ratio and the measurement level of the device is improved; in addition, an explosion protection function and a detection function are organically combined, so that the device is high in safety and convenient to operate.

The invention provides a calibration cable for geological exploration as well as a production technology and a calibration detection method of the calibration cable. The calibration cable for geological exploration comprises a cabled core formed by mixing a plurality of conductors and tensile components, a sheathing layer is extruded on the outer side of the cabled core, calibration rings with equal intervals L are arranged on the sheathing layer, the outer diameter of the sheathing layer is set as D, the inner diameter of each calibration ring is set as d, the surface of each calibration ring is set as red or other marking colors, and the calibration ring is made of rubber. When a product is produced according to an operation process of the production technology, the technical scheme that a section of the calibration cable is selected randomly from a finished cable for detection is adopted. The defects that the conventional exploration cable does not have calibration intervals, is not suitable for exploration of deeper geological condition, cannot finish a geological exploration task precisely, especially when the deeper geological condition is explored, design calculation on the cable length is required, the service life of the cable is influenced, and the exploration cost is increased are overcome, and the calibration cable is particularly suitable for an instrument and equipment for exploration of geological conditions with frequent natural disasters such as earthquake, debris flow, landslide and the like.

The invention relates to a built-in neutron elemental analysis device which comprises a neutron source item system, a sample detection system, a shielding protection system and an energy spectrum analysis system. The built-in neutron elemental analysis device has the advantages that detected industrial material elements can be stimulated by neutrons emitted from neutron sources, generated gamma rays can be collected and analyzed by the aid of a detector, industrial material component information can be obtained, production can be guided, and the shielding protection system is used for carryingout dose protection on environments and human bodies and protecting the detector; the built-in neutron elemental analysis device is designed by the aid of optimal design methods on the basis of signal interference ratio systems, signal interference ratios are used as design evaluation criteria for the built-in neutron elemental analysis device, accordingly, the integral signal interference ratioof the built-in neutron elemental analysis device which is a system device can be increased, the detection level of the built-in neutron elemental analysis device can be ultimately upgraded, industrial material production and utilization can be optimally guided, the built-in neutron elemental analysis device is integrally miniaturized, is low in cost and can be conveniently and quickly mounted, and only small mounting spaces are required by the built-in neutron elemental analysis device.

The invention provides an impurity detection method of clarithromycin. The method specifically comprises the following steps: preparing a crude drug test solution; preparing an evaluation solution; preparing a self-control solution; preparing a system sensitivity evaluation solution; preparing a system suitability solution; preparing a blank solvent; successively introducing samples and requiring that ratio of impurity D's peak height/principal component peak to impurity D's adjacent peak valley in the atlas is not less than 3.0; and finding out impurity position and peak area in the test object atlas referring to the system suitability atlas, and calculating contents of various impurities by a self-contrasted method so as to finish the detection. By the method, load of system and chromatographic column is reduced, impurity determination level is improved, and an ideal determination effect is achieved through system adjustment.

The invention provides a dairy herd improvement (DHI) determination standard substance, and a preparation method and applications thereof. The standard substance is obtained through orthogonal designaccording to components with the following mass percentage ranges and corresponding horizontal gradients: the mass percentage range of fat is 0.20-6.00%, and 12 horizontal gradients are designed; themass percentage range of protein is 2.00-4.50%, and 6 horizontal gradients are designed; and the mass percentage range of lactose is 4.00-5.00%, and 4 horizontal gradients are designed. The standard substance is uniform, stable, wide in component concentration range and low in leverage value, so that requirements of DHI measurement can be achieved, and the influences of the correlation between fatand protein content in natural milk samples on the calibration accuracy of the DHI standard substance can be reduced; and after a DHI standard substance calibration instrument is used, the accuracy of the instrument can be enhanced, measurement levels can be improved and maintain stable, and inter-laboratory consistency can be increased.

The invention relates to a double-body mechanical marine survey boat which comprises a boat body, a winch and a winch frame, wherein the winch and the winch frame are both mounted on the boat body. The double-body mechanical marine survey boat is characterized in that the lower part of the boat body is provided with symmetric double boat bodies; a forward-turning transducer bracket is mounted in the front of the middle part of the head of the boat body; a side-turning transducer bracket is mounted on one side of the boat body; and a moon well-type transducer telescopic bracket is mounted on the other side of the boat body. With the double-body boat type, the survey boat not only improves the storm resistance and stability, but also correspondingly improves the reliability of the data acquisition of the detection equipment, increases the science of the data and upgrades the survey level of the survey boat; and moreover, the forward-turning transducer bracket is mounted on the boat head, the side-turning transducer bracket and the moon well type transducer telescopic bracket are mounted on the two sides of the boat body respectively, and the brackets can be provided with different transducers respectively so as to realize synchronous survey on different positions and improve the efficiency and precision of the survey.

The invention provides a calibration cable based on geological detection and application of the cable. The cable comprises a cabled core composed of multiple conductors and a tensile strength component. A sheath layer is arranged outside the cabled core in an extruded mode, calibration rings are arranged on the sheath layer at an equal interval of L, the outer diameter of the sheath layer is D, the inner diameter of each calibration ring is d, and the surfaces of the calibration rings are red or of other marking colors and are made of rubber. According to the technical scheme, products are manufactured according to operation procedures of a manufacturing process, and a segment of the calibration cable is selected from the finished cable at will for detection. The calibration cable overcomes the defects that an existing detection cable has no calibration distance, and is not suitable for deep geological condition detection or cannot precisely finish geological detection tasks, the length of the cable needs to be designed and calculated when geological conditions of a certain depth are detected, the service life of the cable is influenced, and detection cost is increased. The calibration cable is especially suitable for being used on instruments and equipment for geological condition detection in places where earthquakes, debris flow, landslide and other natural disasters frequently occur.

The invention provides a multifunctional hardware hammer. The multifunctional hardware hammer comprises a hammer tip, a hammer body, a hammer surface, a hammer lever, horizontal liquid, a hanging port, a grasping layer, a connecting port and a screwdriver. The hammer body is arranged under the hammer tip, the hammer surface is arranged under the hammer body, the hammer lever is arranged at the right side of the hammer body, the horizontal liquid is arranged at the left side of the hammer lever, the hanging port is arranged at the right side of the horizontal liquid, the grasping layer is arranged at the right side of the hammer lever, the connecting port is arranged in the right part of the hammer lever, and the screwdriver is connected with the hammer lever through the connecting port. According to the invention, a level measuring function is increased, when an installation worker needs to use a plurality of tools, the multifunctional hardware hammer can be carried conveniently, when being not used, the multifunctional hardware hammer needs to be placed appropriately to prolong the service life of the multifunctional hardware hammer, the manufacture cost is reduced, and the user can use the multifunctional hardware hammer conveniently.

The invention relates to the technical field of low-current grounding capacitance current measurement, and specially relates to a low-current grounding capacitance current online measurement system. Aiming at two states that whether a neutral point of a small-current grounding system is grounded or not, an improved maximum displacement voltage method and a signal injection method are respectivelyadopted to measure and calculate the grounding capacitance current, so that the measurement efficiency of the capacitance current of the system and the all-working-condition operation capability are improved; secondly, by establishing a displacement voltage method control theory based on the arc suppression coil, a method of a capacitive current hybrid algorithm is provided by the system, the problems that errors exist in a traditional capacitive current calculation method and the compensation effect of the arc suppression coil is affected are solved, and the technical effect of improving thecompensation precision of the arc suppression coil is achieved; and aiming at the problem of large zero-sequence current and voltage change range, a displacement voltage dual-channel and high-precision measurement method is provided, and the technical effect of improving the measurement level of the displacement voltage and the capacitance current is achieved by adopting a high-range and low-rangemode.

The invention relates to an up-and-down symmetrical thrust bearing base for a small waterplane catamaran, which comprises an upper base and a lower base which are oppositely arranged at an interval, wherein a thrust bearing is arranged in the interval between the upper base and the lower base; the two sides of the outer wall of the thrust bearing extend outwards to form footings; the footings areconnected with the upper base or the lower base through vibration isolators; an upper platform is installed at the top of the upper base; shells are installed on the two sides of the interval betweenthe upper base and the lower base; the upper ends and the lower ends of the shells are fixedly connected with the upper base and the lower base respectively; each shell is of an arc-shaped outwards-protruding structure; and a plurality of reinforcing ribs are fixedly installed on the inner wall face of each shell. The up-and-down symmetrical thrust bearing base is used for static thrust transmission and dynamic excitation force control of the propulsion shafting of the small waterplane catamaran, and provides powerful technical support for radiation noise control of the small waterplane catamaran.

A flow cell includes: a flow channel through which a sample solution flows; an inlet section which communicates with the flow channel and to which the sample solution is supplied; a transfer section which includes a plurality of opening sections, one end side of which communicates with the flow channel and an other side of which opens to outside air, and which communicates with the flow channel, and draws in and guides the sample solution supplied into the inlet section to the flow channel; a detecting section which faces the sample solution in the flow channel; and a sealing member which unsealably seals at least either one of the opening section or the inlet section.