49 results about "Cryometer" patented technology

The invention provides a method for compensating the temperature detected by a temperature sensor, belonging to the sensing measurement and control field. Firstly, a Chinese Standard No.1 mercury thermometer is taken as the temperature detecting standard, a mathematic model of the temperature sensor Pt100 is established, and a transfer function is determined; secondly, parameters of the transfer function of the temperature sensor Pt100 is determined through experiments, a third-order model is introduced to describe the temperature property of the temperature sensor, an MATLAB software is used to fit the experimental data, a penalty function is introduced, and a penalty algorithm is determined; and finally, a difference equation realized by computer language is transferred to fulfill the purpose of automatically detecting the temperature. The compensating method ensures that the dynamic property of the temperature sensor Pt100 approaches the dynamic property of the Chinese Standard No.1 mercury thermometer well, which is verified in the practical application well. The method is convenient and easy to implement and has accurate measurement result.

From a stage of preheating by a halogen lamp to irradiation with a flash by a flash lamp, a radiation thermometer is used for measuring the temperature of a back surface of a semiconductor wafer. A increased temperature ΔT is determined by which the back surface of the semiconductor wafer is increased in temperature from the preheating temperature by irradiation with a flash. The specific heat of the semiconductor wafer has a known value. Further, the increased temperature ΔT is proportionate to the magnitude of energy applied to a front surface of the semiconductor wafer by irradiation with a flash. Thus, a front surface attained temperature of the semiconductor wafer can be determined using the increased temperature ΔT of the back surface of the semiconductor wafer during irradiation with a flash.

The invention relates to a special auxiliary device for continuous measurement of molten iron temperature. The device comprises an air-cooling jacket, wherein an auxiliary tube of the air-cooling jacket is communicated with a first end part and a second end part of a main tube; the first end part is provided with an air inlet; a mounting position for an infrared radiation thermometer positioned between the first end part and the second end part is arranged in the main tube; and preferably, an air path which is communicated with the auxiliary tube and oriented to the mounting position of the infrared radiation thermometer is arranged in the second end part. The device also comprises a light shading tube which is inserted and fixed in the second end part, an adjusting device and an air supply component, wherein the adjusting device comprises a fixed link and an adjusting part; the first end part is fixed on the fixed link; the adjusting part is fixed with the fixed link and the second end part respectively; and an air outlet pipeline of the air supply component is connected with the air inlet. The invention also relates to a molten iron temperature continuous measurement system with the special auxiliary device. The special auxiliary device has smart design, and can accurately and continuously measure the molten iron temperature, thereby realizing real application of the infrared radiation thermometer in molten iron temperature measurement.

The invention belongs to the technical field of product testing and relates to a testing device for a long rod platinum resistance thermometer with a length over 700mm in particular. The testing device include a constant temperature water bath device and at least two standard thermometers; the constant temperature water bath device includes a water bath chamber which can be inserted into the long rod platinum resistance thermometer to be tested; the two standard thermometers are respectively inserted into the two ends of the water bath chamber as well. The testing device not only has a simple structure and is conveniently used, but also greatly reduces the testing cost. The invention also relates to a method for testing the long rod platinum resistance thermometer with the testing device; the method includes the steps as follows: firstly inserting the long rod platinum resistance thermometer into any end of the water bath chamber; then setting the temperature value of the constant temperature water bath device and waiting for a temperature field to be stable; then reading the values of each thermometer in turn and working out a standard temperature value by utilizing the values of the standard thermometers; then comparing the temperature value of the long rod platinum resistance thermometer to be tested with the standard temperature value and judging the measuring characteristic of the standard temperature value; resetting at least two temperature values to the constant temperature water bath device and repeating the steps.

The invention discloses a multi-group layered submerged impinging steam reactor and relates to a chemical reactor. The reactor is of a multi-group layered structure; top, middle and lower three layers of feed pipes are arranged on a reactor body; the feed pipes on the same layer are coaxially and oppositely arranged; the outlet end of each feed pipe is provided with a nozzle adjustable in structure, diameter and spacing; the reactor body is in the shape of a vertical cylinder; the upper end of the reactor body is provided with an elliptical head cover; a gas outlet, a pressure gage insertion hole and a temperature gauge insertion hole are formed in the elliptical head cover; the lower end of the reactor body is a conical reactor bottom, and a discharge hole is formed in the reactor bottom; an overflow outlet is formed in the side wall of the upper part of the reactor body, and can be used for leading out light components after reaction; the outer side of a column wall is provided with a jacket, and the jacket is used for heating or cooling. When the reactor works, fluid is sprayed through the nozzles of the feed pipes, and violently impinges in an impinging area in the reactor body so as to achieve the goals of full mixing and full reaction; the radial liquid flow of the impinging fluid can impinge for the second time, so that the reaction (mixing) efficiency is improved. According to the reactor, the feed pipes can be increased or reduced by groups according to the actual requirement, and therefore multiple working conditions can be adapted; the reactor is convenient to install and low in maintenance cost.

A non-contact type infrared temperature measuring system based on a micromachine thermopile comprises a diaphragm, a ceramic damping piece, a sensor, a simulation circuit, a data collecting card and a computer. The non-contact type infrared temperature measuring system based on the micromachine thermopile is suitable for temperature measuring of a long-distance target, a high-speed moving target, an electrification target and other untouchable targets especially in some dangerous environments. Compared with a traditional thermocouple, a thermometer and other thermodetectors, the system does not need to be in contact with a measured object by infrared temperature measuring, long-distance temperature measuring can be achieved, and meanwhile tiny temperature fluctuation of the object can cause large changing of radiation energy, so that an infrared thermodetector is high in sensitivity, and the minimum measurable temperature difference of the micromachine thermopile infrared thermodetector can reach 0.01 DEG C. In addition, the system has the advantages of being reasonable and simple in structural design, low in cost, high in temperature measuring accuracy and the like.

A calibrating device of heat energy meter consists of temperature detecting system including the same two of temperature setting units prepared as connecting water box to warm field , placing silicone oil in warm field cavity ,setting temperature sensor and thermometer of heat energy meter in silicone oil and having water rising along spiral sheet in jacket of internal cavity ; flow rate detecting system prepared as connecting water box to flow stabilization tank and connecting said tank separately to two flow test piping with heat energy meter ; and computer processing system .

A method for calibrating a thermometer is disclosed. The thermometer comprises a primary temperature sensor for determining the temperature of a target. The thermometer also comprises a reference temperature sensor positioned proximate to the primary temperature sensor and being responsive to an extraneous temperature affecting the primary temperature sensor. One calibration method calibrates the reference temperature sensor. This calibration can utilize a non-electrically conductive liquid bath for temperature control. Another calibration method calibrates the reference temperature sensor and the primary temperature sensor.

A semiconductor wafer held in a chamber by a susceptor is heated by irradiating the semiconductor wafer with light directed through an upper chamber window and a lower chamber window. A radiation thermometer measures the temperature of the semiconductor wafer held by the susceptor. A temperature correction part corrects temperature measurement of the semiconductor wafer with the radiation thermometer, based on the value of temperature measurement of the upper chamber window, the value of temperature measurement of the lower chamber window, and the value of temperature measurement of the susceptor. Thus, the temperature of the semiconductor wafer is accurately measured irrespective of the temperatures of in-chamber structures including the susceptor and the like.

This invention discloses an infrared thermometer for ear or skin temperature. The infrared thermometer comprises a body, an infrared sensing element, and a heat dissipating means. The heat dissipation means is provided behind or below the infrared sensing element for urging the air flowing in and out of the body, so as to contribute better heat dissipation and air circulation around the infrared sensing element. Hence the accuracy and stability of the infrared thermometer are improved.

A kneaded material obtained by heating and melt-kneading a toner composition and a water-based medium containing water are put into a container of a granulating apparatus, and heated by a heater while agitating, to disperse the kneaded material into the water-based medium in its softened state. A temperature at which a loss tangent value of the kneaded material reaches a predetermined loss tangent value A, specifically, 0.5 or more and less than 5.0, is inputted to a granulating temperature input section as a setting granulating temperature T1. The heater is then controlled by a control section so that a granulating temperature as a temperature of the water-based medium measured by a thermometer reaches the setting granulating temperature T1 inputted to the input section. Accordingly, the granulating temperature as a temperature of the water-based medium, and thus a temperature of the kneaded material in the water-based medium is adjusted to T1.

The invention relates to a detecting device of a water temperature sensor and a detecting method thereof, comprising a transparent container, an approach slab, a heating device and a thermograph; wherein, a main body consisting of the transparent container and the approach slab is filled with water, the heating system and the thermograph are arranged on the approach slab and contacted with the water, an air outlet hole is arranged on the approach slab, and another hole is arranged on the approach slab and is used for installing the water temperature sensor. The invention can rapidly and accurately identify whether the water temperature sensor is invalid or not.

The invention relates to a method for measuring explosive firing temperature, which comprises the steps of, (1) contacting the tested explosive with a selected temperature gauge, (2) heating-up temperature gauge through a heating arrangement, (3) recording the heating-up process of the explosive and interpreting the explosive ignition temperature. The method can facilitate the extensive use in the real world engineering.

Accurate temperature measurement during manufacturing a vitreous silica crucible is enabled. The present invention provides an apparatus for manufacturing a vitreous silica crucible including: a mold for forming a silica powder layer by supplying silica powder therein; an arc discharge unit having carbon electrodes and a power supply unit and for heating and fusing the silica powder layer by arc discharge; and a temperature measurement unit for measuring temperature of a fused portion in the mold, wherein the temperature measurement unit is an radiation thermometer for measuring temperature by detecting radiation energy of a wavelength of 4.8 to 5.2 μm.

The invention discloses a sealed constant temperature bath which comprises a bath body, a flange cover and a sealing ring. The bath body is made of materials which are resistant to corrosion and pressure and cannot react with oil products. The flange cover and the bath body are sealed. The sealing ring is arranged between the bath body and the flange cover. At least one installation hole is formed in the flange cover. A temperature gauge insertion tube is connected with the flange cover through the installation hole. According to the sealed constant temperature bath, the normal-pressure sealing structure is achieved, the open-type structure of a traditional constant temperature oil bath is improved fundamentally, and oil and oil steam are automatically recycled in the heating process, so that a sealed self-circulation system is formed, no pollution is caused to the environment, and green verification and calibration are achieved.

This invention relates to an embedded Pt thermal resistor wired in 8-shape used in a resistance thermometer for testing the temperature of the coil or the core of a motor including Pt wires and a carrier, in which, said carrier is a plate-type bracket, two circular slots are opened on it to surround two same inside tracks, the Pt wire is laid around the slot in a 8-shape and an insulating layer is set at the cross exchange place of the Pt wires between the two slots. When a Pt thermo-resistor is embedded in the core slot, the alternating leakage-flux in the slot will turn the interference voltage induced at the lead end of the resistor to drop to zero so as to ensure the normal operation of the resistor.

The invention discloses an internet of things digital thermometer suitable for an industrial field. The internet of things digital thermometer comprises a heat insulation connecting rod, a temperaturedetection part and a communication part, wherein the temperature detection part and the communication part are arranged at the two ends of the heat insulation connecting rod respectively; the temperature detection part comprises a base and a patch type temperature sensor; the base is arranged on the outer side of the heat insulation connecting rod, and comprises a fixing sleeve and a magnet placed in the fixing sleeve; the patch type temperature sensor is connected to the bottom of the heat insulation connecting rod through an elastic part, the distance between the patch type temperature sensor and the bottom of the heat insulation connecting rod is larger than the thickness of the magnet so as to ensure that the elastic part is in a compressed state when the magnet is adsorbed on the surface of an object to be measured, and the patch type temperature sensor is tightly attached to the surface of the object to be measured through the rebounding force of the elastic part. The digital thermometer can be rapidly attached to the object to be measured, so that rapid and firm installation can be realized; and active net searching and connecting can be realized without cooperation of an upper-layer gateway, a sensor network based on wireless communication can be rapidly established, and the extremely high market popularization value is achieved.

The invention relates to an integral temperature indicator. The temperature indicator comprises a field temperature indicator, a remote transmitting temperature indicator and a protection pipe which are formed into a whole body, wherein temperature sensing elements of the field temperature indicator and the remote transmitting temperature indicator are all arranged at the bottom of the protection type, the field temperature indicator adopts a bimetal temperature indicator, a bimetal strip is arranged at the bottom of the protection pipe, the remote transmitting temperature indicator adopts a thermal resistor temperature indicator or a thermocouple temperature indicator, and a thermal resistor or a thermocouple is arranged at the bottom of the protection pipe. The invention integrates the field temperature indicator and the remote transmitting temperature indicator into an integral temperature measuring instrument with the field display and signal remote transmitting functions. The invention has the advantages of compact structure, convenient installation and lower cost, and is widely applied to industries such as petroleum, chemical engineering, iron and steel, dye printing, pharmacy and the like.