47 results about "Feret diameter" patented technology

A corrugated tube clamp may includes a fixed portion capable of being connected to an attaching object, a movable portion hinged to the fixed portion, ribs respectively formed in the fixed portion and the movable portion, and at least one biasing member formed in at least one of the fixed portion and the movable portion. The fixed portion and the movable portion are shaped to clamp and hold each of corrugated tubes having different diameters therebetween. The ribs are respectively shaped to engage grooves formed in an outer circumferential surface of each of the corrugated tubes of different diameters. The at least one biasing member is shaped to be pressed back by an outer circumferential surface of at least the corrugated tube with the smallest diameter when it is clamped between the fixed portion and the movable portion.

A fastener system is constructed wherein the installation and removal drive surfaces intersect an enlarged core diameter in a transitional surface that extends between the installation and removal surfaces of adjacent wings. The transitional surface has a concave form that conforms to the core diameter. The projections of the driver in the system are formed in a blunt shape.

In a chain transmission a standard ISO roller chain meshes with a modified sprocket having a root diameter larger than the root diameter of a standard sprocket designed for use with the standard chain. The angular tooth pitches can be either of two kinds. In a first version, the sprocket has two irregularly distributed tooth pitches, θ−Δθ and θ+2Δθ, there being two tooth pitches θ−Δθ for each tooth pitch θ+2Δθ. In a second version, the sprocket has three angular tooth pitches, θ−Δθ, θ, and θ+Δθ, in equal numbers, also distributed irregularly.

A toner comprising a toner particle including a binder resin and a colorant and an external additive, wherein the external additive contains an external additive A having a Feret diameter of 60 to 200 nm, the external additive A is inorganic fine particles or organic-inorganic composite fine particles, adhesion index of the external additive A to the toner is 0.00 to 3.00, and penetration depth b and protrusion height c satisfy Relational expressions (1) and (2) below, where b (nm) denotes penetration depth of the external additive A, at a portion of the external additive A penetrating into the toner particle interior from the surface thereof, and c (nm) denotes a protrusion height of the external additive A at that portion, in an observation of an image resulting from image processing of a cross section of the toner using TEM;

60≤b+c≤200  (1),

0.15≤b/(b+c)≤0.30  (2).

The invention discloses a fruit size nondestructive detection method based on orthogonal binocular machine vision. Two industrial cameras with the orthogonal central axes are adopted to carry out image acquisition on an object; then an acquired image is subjected to preprocessing, characteristic quantity extraction and reasonable algorithm calculation through an MATLAB algorithm to obtain a top view standard contour graph and a side view standard contour graph; the side view standard contour graph is subjected to data processing to obtain the distance from the maximum fruit diameter surface tothe fruit bottom, which is called the height of the fruit diameter surface; the top view standard contour graph is subjected to data processing to obtain the calculated fruit diameter; by combining the height of the fruit diameter surface, a height proportion coefficient k is introduced for correcting the calculated fruit diameter to obtain the fruit diameter with a relatively small error; and then comparison is carried out based on the national fruit grading standard, so that the nondestructive measurement of the fruit size is realized. The method has the characteristics of standardization,high efficiency, high precision and damage detection, thereby having an important research significance.

The present invention provides a toner which enable to form a high quality image with achieving low-temperature fixability, high heat-resistant storage property and high blocking resistance, and moreover, achieving excellent hot off-set resistant property and high fold fixability. The electrostatic image developing toner is made of tonner particles containing a binder resin having a domain-matrixstructure and a colorant; wherein the toner particles have a volume-based median diameter of 4.3 to 7.0 [mu]m; a domain phase in the binder resin contains a polymer containing a structure unit derived from a diene monomer, the domain phase has a Feret diameter of 50 to 300 nm; and a glass transition temperature of the polymer composing the domain phase is -85 to +35 DEG C.

[Problem] To provide an optical film and a method for fabrication thereof, whereby it is possible to allow one orthogonal polarized light component to pass and to disperse another polarized light component. [Solution] Provided is an optical film, including an optically isotropic continuous phase and an optically anisotropic dispersion phase. The birefringence of the optically isotropic continuous phase is less than 1.5*10-4, and a ratio L1/L2, where L1 is an average Feret diameter of the optically anisotropic dispersion phase in one direction D1 of the planar direction of the optical film and L2 is an average Feret diameter of the optically anisotropic dispersion phase in a direction D2 which is orthogonal to the direction D1, is 2.5 or greater, and the average Feret diameter L2 is 0.5μm or less.

The invention relates to the field of a distance measurement device and particularly relates to a laser caliper and a method for measuring a tree diameter by the laser caliper. According to the method provided by the invention, a movable laser point on the diameter-measuring laser caliper correspondingly irradiates an object; when the laser point moves to an edge of the object, a laser degree exceeds a pre-set threshold value; the thickness of the object is obtained through measuring the movement amount of the laser point on the caliper; and the laser caliper can be applied to the aspects of measuring the thickness of the object, measuring the diameter of a cylinder and the like, and is particularly applied to the aspect of measuring the tree diameter. The laser caliper has the beneficial effects that the device is reasonable in structure, high in reliability, high in measurement precision, and simple and convenient to operate; a single person can operate when the laser caliper is used for measuring the tree diameter, the laser caliper can be used for automatically measuring when a measuring key is pressed, and then a liquid crystal screen is used for displaying in real time and automatically recording; the equipment cost is low so that the laser caliper can be popularized in a large range; the device can also be applied to measurement works of other fields; and when the laser caliper is used for measuring the tree diameter, data is stored into the cloud simultaneously, so that data backup is carried out and people of a far terminal can conveniently check the data.

A secondary battery is provided for cycling between a charged and a discharged state, the secondary battery including a battery enclosure, an electrode assembly, carrier ions, a non-aqueous liquid electrolyte within the battery enclosure, and a set of electrode constraints. The set of electrode constraints includes a primary constraint system having first and second primary growth constraints andat least one primary connecting member, the first and second primary growth constraints separated from each other in the longitudinal direction, wherein the primary constraint array restrains growth of the electrode assembly in the longitudinal direction such that any increase in the Feret diameter of the electrode assembly in the longitudinal direction over 20 consecutive cycles of the secondarybattery is less than 20%. The set of electrode constraints further includes a secondary constraint system having first and second secondary growth constraints connected by at least one secondary connecting member, wherein the secondary constraint system at least partially restrains growth of the electrode assembly in a second direction upon cycling of the secondary battery.

The invention provides a touch pad sensor having advantages of good durability of load pressed from the vertical pressing, difficulty in breaking lines, ability of improving the resistance, and high reliability. The touch pad sensor is provided with a transparent conductive film and the wiring connected with the transparent conductive film. The wiring can be started from the substrate side, and is constituted by a metal film with a high melting point, A1 alloy membrane, and a metal film with a high melting point. The A1 alloy membrane contains a 0.05-5atom% rare-earth element having the 80-200GPa Young modulus. The maximum value tangent line diameter of the grain in the determined direction (the Feret diameter) is in a range of 100-350mm.

The invention discloses a square closed magnetic circuit chip inductor which comprises a base. The base comprises a plastic substrate or a left copper conducting piece and a right copper conducting piece which are in central symmetry. A plurality of bosses and a plurality of wire hanging hooks are arranged on the base. Magnetic cores are arranged at the inner diameters of the bosses. Magnetic covers are arranged on the outer diameters of the bosses. Locating grooves are formed in the bottom ends of the side walls of the magnetic covers. Substrate connecting, winding, tin soldering, dispensing, assembling, post-processing printing, and testing or packaging are carried out, winding, tin soldering and assembling are mainly carried out, full automation is achieved, the structure is reasonable, the full-automatic winding technology of various wire diameters can be achieved, machining cost is greatly lowered, the bosses are designed on the plastic substrate or the left copper conducting piece or the right copper conducting piece, the stability of electricity is guaranteed, the magnetic cores are located on the inner diameters, the magnetic covers are located on the outer diameters, the success rate of automatic assembling is greatly improved, the temperature resistance degree is greatly improved, and the adhesive force of the copper conducting pieces and the magnetic cores is greatly improved.

The invention discloses a preparation method for an optical fiber preform rod. The preparation method comprises the steps: forming a core rod coating on the surface of a core rod, wherein the core rod has first core rod parameters; extending the core rod, fusing auxiliary rods to the two ends of the core rod so as to prepare a start rod which has a first core diameter, calculating an outside diameter value of the start rod, and calculating the weight of the start rod according to the outside diameter value of the start rod; calculating outside diameter of the preform rod to be deposited, and calculating the weight of the preform rod to be deposited according to the outside diameter of the preform rod to be deposited; obtaining the weight of the deposited coating of the preform rod; and depositing loose bodies to the surface of the preform rod to be deposited, carrying out real-time monitoring on the weight of the deposited loose bodies until the weight reaches the weight of the deposited coating of the preform rod, and carrying out vitrification, thereby preparing the optical fiber preform rod. According to the preparation method for the optical fiber preform rod, the fluctuation of core coating ratio of the preform rod can be lowered, and the problem that fiber cutoff wavelength and zero dispersion wavelength are overproof is solved.

The invention relates to a shock absorber installation structure. The shock absorber installation structure comprises a shock absorber, a shock absorber installation shaft and a frame, wherein the shock absorber installation shaft is matched with the shock absorber, and the frame is used for fixing the shock absorber installation shaft. The shock absorber installation shaft is a stepped shaft and comprises a first diameter part, a second diameter part, a third diameter part and a fourth diameter part, wherein the diameters of the first diameter part, the second diameter part, the third diameter part and the fourth diameter part gradually decrease. A threaded section is arranged on the fourth diameter part and matched with a self-locking nut. The shock absorber installation shaft and the frame are connected and fixed by locking the self-locking nut. According to the technical scheme, by limiting the radial displacement and the radial rotation of the shock absorber installation shaft, the abnormal damage to installation rubber pads is avoided, the deformation of the first installation pad and the second installation pad in the disassembly and assembly process is avoided, the risk that a shock absorber installation support cracks is lowered, and the assembly efficiency of a shock absorber is improved.