62results about How to "Stable metering" patented technology

A Mersenne-Cassegrain telescope provided in a single block of glass in which opposed parabolic elements are precision milled through diamond turning of a glass boule, with the magnification power of the telescope determined by the differences in focal length between the two parabolas. The result is a volumetrically small telescope with pre-aligned surfaces that are maintained by the structural rigidity of the glass itself and in which thermal coefficients of expansion, vibration and the like have no effect due to the single glass element structure.

Disclosed herein is an automatic analyzer that can eliminate the generation of air bubbles of dissolved gas in a liquid circulating in a thermostat bath enabling stable photometry. A degasifier for removing the dissolved gas in the liquid and a bypass passage for ensuring a flow rate required for temperature control of the circulating liquid are provided in a passage for temperature-controlled liquid circulating in the thermostat bath. The automatic analyzer can reduce the dissolved gas concentration to a level at which air bubbles of the dissolved gas in the liquid do not appear while maintaining a flow rate required for temperature control of the liquid circulating in the thermostat bath, thus eliminating air bubbles passing through the light flux during photometry and accordingly enabling stable photometry.

The invention relates to a modular structure electronic belt weigher which consists of the following main components: a motor speed reduction unit, a material conveying belt, a weigher body frame, a driving module, a weighing platform module, a driven module and the like, wherein the driving module consists of a driving roller, an automatic correcting device, a guide rail, a fixed carrier roll and the like; the weighing platform module consists of a weighing sensor, a head amplifier, a weighing carrier roll, a guide rail, a weighing platform frame and the like; and the driven module consists of a driven roller, a stretch roll, a guide rail, a fixed carrier roll and the like. Therefore, the problem of stability of performance indexes when the belt weigher operates for a long time is solved. The modular structure electronic belt weigher has the characteristics of simpleness for maintenance and rapidness and convenience for assembly and disassembly and has functions of continuously and dynamically weighing, accumulating the flow, controlling the flow, correcting the deflection of a belt and the like. The modular structure electronic belt weigher can be used as a batcher scale on the production line and can also be used as a target metering scale in the trade settlement process.

The invention discloses a protective cap of a viscosity meter. The protective cap is formed by mixed connection of a cap base, a connecting base and a boss, wherein the cap base is cylindrical; a circumferential edge of a lower round surface of the cap base is turned into a circle of outer round angle; the connecting base is cylindrical and located above the cap base; a lower round surface of the connecting base is connected with an upper round surface of the cap base in a mixed manner; the boss is cylindrical and located above the connecting base; a lower round surface of the boss is connected with an upper round surface of the connecting base in a mixed manner; a lower round hole is dug upwards in the lower round surface of the cap base; a circumferential edge of a lower hole surface of the lower round hole is turned into a circle of inner round angle; a connecting hole is dug upwards in an upper hole surface of the lower round hole and communicated with the lower round hole; a middle round hole is dug upwards in an upper hole surface of the connecting hole and communicated with the connecting hole; and an upper round hole is dug downwards in the middle of an upper round surface of the boss and communicated with the middle round hole.

The invention discloses a switch support of a micro-balance. A support body of the switch support of the micro-balance is composed of a supporting board, a support board and a connecting board in a mixed connection mode. The supporting board, the support board and the connecting board are all cuboids. The rear surface of the supporting board is connected with the front surface of the support board in a mixed mode. A left installation hole is drilled downwards in the left portion of the upper surface of the supporting board and is a through hole. A right installation hole is drilled downwards in the right portion of the upper surface of the supporting board and is a through hole. The right surface of the connecting board and the left surface of the support board are connected in a mixed mode. A fillet is turned on the rear surface of the connecting board. A middle through hole is drilled leftwards in the middle of the right surface of the connecting board.

The invention discloses a disk of a micro-balance. The disk is composed of a disk body and a connection base in a mixed connection mode. The disk body is a cylinder. A circle of 45-degree fillets are turned on the circumference of the front round face of the disk body. The connection base is a cylinder is located behind the disk body. A first round hole is dug rearwards in the middle of the front round face of the disk body. A second round hole is dug rearwards behind the first round hole. The second round hole is communicated with the first round hole. An upper round hole is dug rearwards over the first round hole in the middle of the front round face of the disk body. A lower round hole is dug rearwards under the first round hole in the middle of the front round face of the disk body. Three front threaded holes are drilled rearwards in the middle of the front round face of the disk body and located around the first round hole. A rear round hole is drilled frontwards in the middle of the rear round face of the connection base. The rear round hole is communicated with the second round hole, the upper round hole and the lower round hole. Four rear threaded holes are drilled inwards in the left round face, the upper round face, the right round face and the lower round face of the connection base respectively.

The invention discloses a simple type underground water constant compensation lysimeter, comprising a water supply metering device, a water level regulation and control device and a lysimeter testing tank, wherein the water supply metering device is connected with the water level regulation and control device through a guide pipe; the water level regulation and control device is connected with a water inlet of the lysimeter testing tank through a communicating pipe; the water supply metering device comprises a Marriotte bottle with scale marks, a water supply pipe and an overflow pipe; the upper end port of the overflow pipe is flushed with the highest scale of the scale marks of the Marriotte bottle; the upper end port of the guide pipe is flushed with the undermost scale of the scale marks of the Marriotte bottle; the water level regulation and control device comprises a water control bottle and an aeration pipe which communicates the water control bottle with the outside; a pressure regulation water line is arranged on the water control bottle; the lower end port of the guide pipe is flushed with the pressure regulation water line; and the upper part of the lysimeter testing tank is backfill, the lower part of the lysimeter testing tank is a water storage layer, and the junction of the backfill and the water storage layer is a constant water line. The simple type underground water constant compensation lysimeter can realize regulation and control of constant water level and metering of water supply and drainage, and has the advantages of stable regulation and control of water level, timely water compensation and high metering accuracy.

The invention relates to a metering device of an automatic analysis meter, which belongs to the technical field of automatic analysis metering. The device comprises a liquid flow driver, a first control valve and a second control valve, wherein liquid flow storage and transportation passages are connected between the two control valves, the number of respective paths of the two control valves is greater than or equal to the number of the liquid flow storage and transportation passages, ports at one side of the first control valve paths are externally connected with test specimens or devices through pipelines, ports at the other side of the first control valve paths are communicated with ports at one side of the liquid flow storage and transportation passages through first public passages,ports at the other side of the liquid flow storage and transportation passages are respectively and correspondingly connected with ports at one side of the second control valve paths, ports at the other side of the second control valve paths are connected with the liquid flow driver, and the volume of the liquid flow storage and transportation passages and the fist public passages is a fixed value matched with the specimen metering volume. Because the volume of the liquid flow storage and transportation passages and the fist public passages can be precisely processed into various fixed valuesaccording to the metering volume of various test specimens, the device of the invention can complete the precise, stable and efficient metering on various test specimens.

The invention discloses an auxiliary automatic conveying system which comprises an auxiliary conveying management device, a measurement distribution conveying control device, an auxiliary storage device and a plurality of dyeing machines. One input end of the auxiliary conveying management device is connected with each dyeing machine; one output end of the auxiliary conveying management device is connected with the measurement distribution conveying control device; the measurement distribution conveying control device is also respectively connected with each dyeing machine and the auxiliary storage device; and the measurement distribution conveying control device comprises an auxiliary distributor, a centrifugal pump, a mass flowmeter, a plurality of flow divider valves, a frequency converter, a PLC (Programmable Logic Controller) controller and an upper computer. The auxiliary automatic conveying system automatically conveys various auxiliaries according to the requirements of the dyeing machines, reduces dependence on people, accurately measures the use amount of each auxiliary and is stable to measure; and conveying requests of a plurality of dyeing machines can be simultaneously input, energy is saved, efficiency is improved, and product quality is improved. The frequency converter in the measurement distribution conveying control device can regulate pumping power of a centrifuge according to viscosities and use amounts of the auxiliaries so as to avoid blockage of an auxiliary pipeline; and the auxiliary automatic conveying system can also take an energy-saving effect.