188 results about "Calorimeter" patented technology

The invention discloses a measurement method for accelerated calorimeter test based on in-situ electrochemical impedance spectroscopy. The measurement method comprises the following steps: applying excitation current to a battery to be detected; measuring the battery to be detected under the current condition through the EIS module to obtain real part impedance and imaginary part impedance under different frequencies; determining phase angles and impedances under different frequencies according to the real part impedances and the imaginary part impedances under different frequencies; the voltage of the battery to be detected at different surface temperatures is collected through the ARC module, and the corresponding temperature rise rate is determined; determining an impedance modulus deviation, a phase deviation, a voltage sharp change deviation and a temperature rise rate deviation according to the phase angles and the impedances under the different frequencies, the voltages under the different surface temperatures and the corresponding temperature rise rates, and generating an error signal; generating a corresponding sampling rate control instruction according to the error signal based on dynamic PID control; and the ARC module adjusts the sampling frequency according to the sampling rate control instruction so as to perform high-precision measurement.

One embodiment includes a respirator system that corrects oxygen sensor measurements, such as measurements derived from an oxygen sensor in a mixing chamber of an indirect calorimeter or oxygen consumption (VO2) monitoring device. In one example, an embodiment determines an inhaled oxygen fraction drift provided by a respirator and corrects a VO2 determination made by the system using a change or rate of change in the inhaled oxygen fraction over time.

Fluid meter, namely heat quantity meter (1) for recording the quantity of cold and / or heat of a fluid, for installation in a supply line (20) or return line (21) of a fluid piping system, comprising - a connection housing (2), - a measuring arrangement for determining flow rates, - a control and evaluation unit (3) as well as - a first temperature sensor (4) which is intended for installation in the flow line (20) and is intended there for determining the temperature in the flow line (20), - a second temperature sensor (5), which is intended for installation in the return line (21) and is intended there for determining the temperature in the return line (21), - wherein a means for determining the temperature of the connection housing (2) of the fluid meter is provided, - wherein a temperature difference between the temperature of the connection housing (2) of the fluid meter and at least one of the temperatures of the first (4) and second temperature sensor (5) can be determined, wherein the control and evaluation unit (3) determines, on the basis of the determined temperature difference between the temperature of the fluid meter and at least one of the temperatures of the first and second temperature sensors (4, 5), which of the temperature sensors (4, 5) is installed in the supply line (20) or return line (21), wherein the measuring arrangement for determining the flow rate is provided as a means for determining the temperature of the connection housing (2) of the fluid meter, where the temperature sensors (4, 5) are automatically assigned to the flow (20) or return (21), wherein the temperature of the connection housing (2) of the fluid meter is determined on the basis of a temperature-dependent transit time of an ultrasonic signal in the fluid, and wherein a look-up table is provided in which the transit times of the ultrasonic signal in the fluid are stored as a function of the corresponding temperature of the fluid and / or the connection housing (2) of the fluid meter and the temperature to be determined of the connection housing (2) of the fluid meter can be derived from the transit time of the ultrasonic signal and the look-up table.

The application provides a compressor performance test system and a test method thereof, wherein the compressor performance test system comprises a to-be-tested compressor, at least two condensers, at least two calorimeters and a control unit, a temperature sensor, a pressure sensor and an electronic expansion valve are arranged between the inlet of the calorimeter and the outlet of the condenser, and the outlet of the calorimeter and the liquid reservoir are spaced apart to arrange the pressure sensor and the temperature sensor. In the compressor performance test system and the test method thereof provided in the application, two or more sets of calorimeter systems are used to simultaneously obtain refrigerating capacity of two or more evaporation sides and heating capacity of two or more condensation sides, so as to meet the performance test requirements of the compressor with multiple evaporation temperatures and multiple condensation temperatures.

The present application relates to the technical field of secondary batteries and specifically provides a separator and a preparation method therefor, a secondary battery and an electric device. The separator includes a porous base film, where the porous base film includes a matrix phase and a filler phase distributed in the matrix phase; in a differential scanning calorimeter test curve of the porous base film, both a melting peak of the matrix phase and a melting peak of the filler phase are included, and a temperature of the melting peak of the matrix phase is higher than a temperature of the melting peak of the filler phase.

The invention provides a control method for realizing waste heat recovery of a circular cooler, which comprises the following steps of: calculating cooling air quantity required by a high-temperature section according to a waste gas temperature set value of the high-temperature section, a heat calculation value of a sintered ore block at a 1 # monitoring point, a heat calculation value of the sintered ore block at a 2 # monitoring point and a waste gas temperature of a low-temperature section; according to the waste gas temperature set value of the medium-temperature section, the heat calculation value of the sinter blocks at the second monitoring point and the heat calculation value of the sinter blocks at the third monitoring point, the cooling air volume needed by the medium-temperature section is calculated; and according to the heat calculation value of the sinter blocks at the 3 # monitoring point and the set average ore temperature and the heat set value of the sinter blocks at the 4 # monitoring point, the cooling air volume required by the low-temperature section is calculated. According to the system, full utilization of waste heat of the high-temperature section, the medium-temperature section and the low-temperature section and the normal cooling effect of the sinter in the circular cooler are achieved, and the triple purposes of controllable sinter cooling, waste heat recycling and frequency conversion electricity saving are achieved.

The invention relates to a differential calorimeter for detecting a thermodynamic characteristic variable of a sample, wherein at least one heating element (2) and at least one thermal element (3) as temperature sensor are formed in each case in the form of a coating on the surface of a planar substrate (1) which is formed from a glass, glass ceramic, glass carbon or ceramic material having a thermal conductivity of less than 20 W / (m K).

The present disclosure provides a multi-sample differential scanning calorimeter (DSC) that allows for simultaneous processing of samples to achieve high throughput sample processing. The multi-sample DSC includes a test chamber; a sample cartridge located within the test chamber, wherein the sample cartridge includes a plurality of sample wells arranged at a periphery of the sample cartridge; a plurality of temperature sensors, wherein each temperature sensor measures a respective temperature of a respective sample well; and a processor configured to selectively determine a temperature difference between any two or more of the plurality of sample wells.

The present invention addresses the problem of providing a PTC resistor in which the resistance value can be easily increased within a short time after reaching a certain temperature and the resistance value remains high after the temperature increase. A PTC resistor according to the present invention, which solves the problem described above, comprises conductive particles, a polyolefin-based wax, and a binder resin. With respect to the DSC curve of the polyolefin-based wax, obtained by increasing the temperature from 25°C to 150°C at a heating rate of 10°C / min using a differential scanning calorimeter, the number of melting peaks in the DSC curve is 1 or 2.

The invention discloses a calorimeter and method for FLASH radiotherapy rays. The calorimeter comprises a calorimetric core, a jacket layer and a shielding layer. The calorimetric core is an absorber of FLASH radiotherapy rays, and the calorimetric core is nested in a first space in the jacket layer in a manner that a first interval exists between the calorimetric core and the jacket layer and the calorimetric core and the jacket layer are not in contact with each other; the jacket layer is nested in a second space in the shielding layer in a manner that the jacket layer and the shielding layer have a second interval and are not in contact with each other; no non-gas filler exists in the first interval and the second interval. Through the arrangement, the calorimeter aims to meet the strict requirements of ultrahigh dose rate and millisecond irradiation of FLASH radiotherapy rays, the defects that solid filler hinders heat transfer and increases heat capacity in the prior art are overcome, through the design that three layers do not make contact with each other and are free of solid filling, heat loss and heat conduction lag are reduced, heat is concentrated on the calorimetric core, and the heat loss is reduced. Meanwhile, the overall heat capacity is reduced, the millisecond-level thermal response speed is guaranteed, and high accuracy and traceability of dose measurement are guaranteed.

The invention relates to the technical field of coal quality detection, in particular to a calorimeter software-assisted nested control module and a calorimeter, and the module comprises an identification unit which is used for identifying current time data of a system, time data set according to user demands, and working state data of the calorimeter; the analysis unit is used for determining the influence level of the maintenance operation on the heat capacity of the calorimeter according to the maintenance operation data and the working state data of the calorimeter, and generating a corresponding countdown reminding instruction according to the user configuration requirement and issuing the countdown reminding instruction to the management unit when the influence level is greater than or equal to a target level; and the management unit responds to the countdown reminding instruction, starts countdown from the target countdown moment set according to the user demand and recorded by the identification unit, and reminds the user to execute the corresponding target operation when the countdown is finished. Therefore, the problems that calibration period management depends on manual work and the misjudgment rate is high in the prior art are solved; and the quality control means are fragmented, and the tracing efficiency is low.

The invention discloses a testing device for an enthalpy-increasing compressor of a flash tank, and relates to the technical field of compressor testing. The system comprises a tested compressor, the head and the tail of the tested compressor are connected in series to a main path test assembly through a refrigerant pipeline, and an enthalpy increasing path test assembly is connected between an enthalpy increasing opening of the tested compressor and the refrigerant pipeline of the main path test assembly; a loop formed by the main path test assembly comprises a condenser, a liquid storage tank, a filter, a first subcooler and a calorimeter which are sequentially connected through a refrigerant pipeline, the condenser is connected with an exhaust port of the tested compressor through the refrigerant pipeline, and the calorimeter is connected with an air suction port of the tested compressor through the refrigerant pipeline. The system is compatible with the conventional performance test of the compressor and the performance test of enthalpy increase with the flash tank, and can independently measure and calculate the flow of an enthalpy increase path; the flash tank is provided with a floating ball liquid level meter for monitoring and measurement, automatic liquid level adjustment and control can be achieved, and when a conventional performance test is switched, liquid refrigerants in the flash tank can be automatically recycled.

The utility model provides a heat insulation acceleration calorimeter furnace body, which relates to the technical field of calorimeter furnace bodies and comprises a calorimeter furnace body, a heat insulation plate is embedded and fixedly connected in the inner wall of the calorimeter furnace body, and a heating plate is fixedly connected on the inner wall of the calorimeter furnace body and close to the top. The inner wall of the top of the calorimeter furnace body is embedded and fixedly connected with a heat flow sensor and a thermocouple temperature sensor, the top of the calorimeter furnace body is provided with a carrier gas pipeline, a reaction gas pipeline, a cooling liquid pipeline, an exhaust pipeline and a pressure balance pipeline at equal intervals, and the surface of the calorimeter furnace body is provided with a furnace mouth. According to the calorimeter furnace, the heat insulation plate is embedded and fixedly connected into the inner wall of the calorimeter furnace body, so that the heat insulation effect of the calorimeter furnace body can be achieved, the effect of reducing temperature dissipation can be achieved, the effect of positioning the whole system in a heat insulation state can be improved, and the accuracy of thermal decomposition thermodynamics and dynamics calculation results is further improved.

The utility model provides a crucible packaging tool for a differential scanning calorimeter, which comprises a fixed shell, the bottom end of the fixed shell is connected with a base in a sliding manner, a plurality of lower dies are arranged in the base, and a crucible is arranged on the surface of each lower die; the top end of the fixing shell is slidably connected with a pressing die, a plurality of fixing holes are formed in the pressing die, and upper dies are installed in the fixing holes. The upper die is in threaded connection with the first screw, and the top end of the first screw is clamped in the fixing hole; a rubber pad is mounted between the top end of the upper die and the pressing die; a stamping block is connected into the upper die in a sliding mode, and the stamping block extrudes a crucible cover. A first spring is installed in the upper die, and the two ends of the first spring abut against the first screw and the stamping block correspondingly. The crucible packaging tool for the differential scanning calorimeter has the advantages that a plurality of crucibles can be packaged at the same time, and the packaging effect is good.

The utility model belongs to the technical field of temperature control equipment, and discloses a constant-temperature circulating water tank for a calorimeter. The constant-temperature circulating water tank for the calorimeter comprises a main water tank and an auxiliary water tank, the auxiliary water tank is installed on the side wall of the main water tank, a plurality of first partition plates with holes are arranged in the main water tank from top to bottom, and a water injection opening and an overflow opening are formed in the top of the main water tank and the top end of the side wall of the main water tank respectively. A circulating water outlet and a circulating water inlet are respectively formed in the bottom and the middle of the side wall of the main water tank. According to the constant-temperature circulating water tank for the calorimeter, the auxiliary water tank is embedded in the main water tank, serves as a temporary storage space to store hot water discharged by the calorimeter and is only in small-range contact with normal-temperature water in the main water tank, the water temperature of the water in the main water tank is regulated and controlled by the refrigerating mechanism and the heating element, and cooling of the hot water and storage of the normal-temperature water are isolated; the water treatment efficiency is improved, the time interval between experiments is reduced, and the problems in the background technology are solved.

A computer-implemented method for obtaining a Q10 value for accelerated ageing tests of a product, comprising: obtaining at least one Q10 value of a first product; performing differential scanning calorimetry on the first product; determining the ratio of semicrystalline chain structure to amorphous chain structure present in the product, using the differential scanning calorimeter analysis data of the first product; determining the ratio of semicrystalline chain structure to amorphous chain structure present in a second product using differential scanning calorimetry; predicting the Q10 value of a second material using (i) the Q10 value of the first product, (ii) the determined ratio of semicrystalline chain structure to amorphous chain structure present in the first product, and (iii) the determined ratio of semicrystalline chain structure to amorphous chain structure present in the second product. The disclosure also relates to other inventive methods for determining Q10 values including a method for determining a Q10 value of a product comprising multiple materials, a method for determining a Q10 value by making a comparison with historical Q10 values in a database, and a method using time temperature superposition.

This invention discloses a calorimetric and infrared (IR) coupled device and method capable of simultaneously detecting the strength and state of solid-gas (liquid) interactions. The device, combined with a calorimeter having a measuring channel and an infrared measurement module, can simultaneously measure the strength and state of solid-gas (liquid) interactions. This invention also discloses a method for studying and detecting the strength and state of solid-gas (liquid) interactions. The amount of gas or liquid involved in the interaction is obtained by subtracting the amount of gas or liquid after the interaction from the initial mass of the gas or liquid, and the amount of substance is quantitatively obtained through a mass spectrometer connected to the device. The calorimetric and infrared coupled device and method disclosed in this invention can simultaneously obtain the strength and state of solid-gas (liquid) interactions in a single experiment.

The utility model provides an acceleration calorimeter fast cooling device and equipment used for acceleration calorimeter test, which comprises a hollow spray ring arranged in a heat insulation acceleration calorimeter and a conduit detachably connected with the spray ring, the spray ring is provided with spray holes used for spraying cooling liquid, and the conduit is provided with a plurality of cooling holes used for cooling the cooling liquid. And the guide pipe is used for guiding the cooling liquid into the spraying ring. The rapid cooling device of the heat insulation acceleration calorimeter solves the problems that an existing cooling device is complex in structure, insufficient in applicability and high in cost. By means of the rapid cooling device for the heat insulation acceleration calorimeter, the cavity in the heat insulation acceleration calorimeter can be efficiently cooled, and the rapid cooling device for the heat insulation acceleration calorimeter is simple in structure, easy to install, good in flexibility and capable of remarkably improving the testing efficiency and safety.

The invention provides an adiabatic heat testing method for a room-temperature violent reaction system. The room-temperature violent reaction system comprises at least two components which are in contact with each other to react under the room-temperature condition. Comprising the following steps: S1, performing adiabatic scanning from a first temperature to a room temperature on an empty test pool by adopting an adiabatic acceleration calorimeter so as to provide test reference data; the empty test pool is cooled to a first temperature through liquid nitrogen in advance, and the first temperature is-196 DEG C to-50 DEG C; s2, in a liquid nitrogen bath temperature environment, cooling the room-temperature severe reaction system, so that the room-temperature severe reaction system is kept in a solid ultralow-temperature state, and components which are in contact with one another to react are isolated from one another in the test pool before cooling; and S3, keeping the test pool at a first temperature for at least 2 minutes, and then operating a temperature rising program of the adiabatic acceleration calorimeter to carry out an adiabatic heat test. According to the invention, accurate and reliable initial reaction temperature can be obtained, and an accurate and comprehensive adiabatic heat test result of a room-temperature violent reaction system can be obtained.

The invention relates to a thermal power frequency modulation capability optimization method and system considering transient heat flow and hybrid energy storage, and the method comprises the steps: constructing a transient heat flow model of a boiler three-stage superheater in a thermal power generating unit, and carrying out the calculation to obtain equivalent thermal resistances corresponding to a hot fluid and a cold fluid in the superheater; based on the equivalent thermal resistance, an energy state space model of the three-stage superheater is built, and the metal wall heat storage power of each superheater is calculated; constructing a steam turbine and speed regulation system model, and calculating the electric power increment of the thermal power generating unit as a first electric power increment by combining the metal wall heat storage power of each superheater and the heat generated by expansion of a working medium after a steam turbine high-pressure cylinder valve is opened; constructing a multi-time-scale combined frequency modulation power distribution model of the thermal power generating unit and the energy storage system, and calculating the electric power increment of the energy storage system as a second electric power increment; and summing the first electric power increment and the second electric power increment to obtain a combined frequency modulation power increment of the thermal power generating unit and the energy storage system. The method can be widely applied to the thermal power generating unit frequency modulation field.

The utility model provides a multichannel mixing and stirring tool for a microcalorimeter, which comprises a heat sink plug, a fixing rod is fixedly connected in the heat sink plug, and the top end of the fixing rod is fixed in a fixing cylinder; a plurality of injectors are clamped in the heat sink plug, and the interiors of the injectors are slidably connected with push rods; the interior of the fixed cylinder is slidably connected with a sliding cylinder, the bottom end of the sliding cylinder is fixedly connected with a heat insulation plug, the interior of the heat insulation plug is slidably connected with a compression rod and the push rod, and the top end of the push rod is clamped in the compression rod; a plurality of sliding grooves are formed in the side wall of the sliding cylinder, and protruding blocks are slidably connected into the sliding grooves. The protruding block is fixedly connected with the top end of the compression rod, and the compression rod is slidably connected with the interior of the sliding barrel. The multichannel mixing and stirring tool for the microcalorimeter provided by the utility model has the advantage that the injector is convenient to install.

Provided is a filament for three-dimensional molding with which three-dimensional molding with fused filament fabrication is possible. Provided are a three-dimensional molded article using the filament for three-dimensional molding and a method for producing the same.The filament for three-dimensional molding contains a polyacetal resin, wherein a difference between a melting point Tm2 and a crystallization temperature Tc (Tm2−Tc) measured by a differential scanning calorimeter is 22° C. or higher and 40° C. or lower, and a melt flow rate measured at a temperature of 190° C. and a load of 2.16 kg is 0.8 g / 10 min. or more and 8.0 g / 10 min. or less.

A method for determining enthalpy includes placing a reactive sample within a sealable vessel, sealing the sealable vessel, placing the sealable vessel within a vacuum chamber, causing a vacuum to be formed within the vacuum chamber, causing the sample to react after causing the vacuum to be formed, measuring a temperature parameter during the reaction of the sample, and determine an enthalpy via the measured temperature parameter.

The invention relates to a method for detecting the content of insoluble sulfur in insoluble sulfur masterbatch, which comprises the following steps: S1, pretreatment of a masterbatch sample to be detected: sampling from a plurality of different parts of the masterbatch to be detected, accurately weighing, and placing in a sealed crucible to prepare a test sample; s2, testing the test sample by using a differential scanning calorimeter (DSC) to obtain a DSC curve, analyzing the DSC curve, and calculating to obtain a melting peak area; and S3, inputting the melting peak area into a preset insoluble sulfur content calculation model, and calculating to obtain the insoluble sulfur content of the masterbatch particle sample to be detected. The method has the advantages that the detection efficiency is high, the period is short, tedious steps such as solvent extraction and filtration are not needed, compared with a traditional solvent extraction method, the efficiency is improved, real-time quality monitoring on a production line can be achieved, and unqualified masterbatch particles are prevented from flowing into subsequent procedures.

Provided is a sensor device disposed in a semiconductor manufacturing apparatus, the sensor device including a sensor array configured to be in a flow path of a gas supplied to the semiconductor manufacturing apparatus, the sensor array including a first calorimeter and a second calorimeter, and a controller configured to identify a pressure of the gas based on a temperature of the first calorimeter, an ambient temperature, and a first amount of heat transfer in the first calorimeter, and identify a flow velocity of the gas based on a temperature of the second calorimeter, the ambient temperature, a second amount of heat transfer in the second calorimeter, and the pressure.

The utility model relates to a sample cell for a large-sample three-dimensional calorimeter, which belongs to the technical field of thermal analysis and comprises a support, an accommodating bottom plate and a cover plate. The bracket is fixedly connected with the accommodating bottom plate; the bracket is used for hanging the accommodating bottom plate in the large-sample three-dimensional calorimeter; a to-be-tested sample is placed on the accommodating bottom plate and is fixed through the cover plate. According to the sample cell specially suitable for the large-sample three-dimensional calorimeter, the sample cell can be hung in the large-sample three-dimensional calorimeter through the support, that is, when a to-be-measured sample is placed in the sample cell, the to-be-measured sample does not make contact with the bottom or the side wall of the large-sample three-dimensional calorimeter, and therefore the to-be-measured sample is prevented from being damaged. Therefore, the direct contact between the sample to be measured and the internal plate surface of the calorimeter is isolated, the sample to be measured can be exposed in a peripheral uniform environment, the measurement of the overall heat effect is facilitated, and the measurement accuracy is improved.

A pressure measuring device for an oxygen bomb type calorimeter relates to the field of combustion heat detection equipment and comprises a sleeve seat and a plug rod, the plug rod is matched with the sleeve seat for use, a sleeve seat upper hole is formed in the sleeve seat, a sleeve seat lower hole is formed in the lower portion of the sleeve seat, a sleeve seat side hole is formed in the side face of the sleeve seat, an external thread is arranged on the plug rod, and the sleeve seat upper hole and the sleeve seat lower hole are matched for use. A sealing groove is formed in the plug rod, and a rod needle is arranged at the lower end of the plug rod. The pressure measuring device can solve the problem that a pressure measuring device matched with an oxygen bomb calorimeter does not exist at present in the background technology.

This adhesive film for a metal terminal is interposed between a metal terminal electrically connected to an electrode of a battery element and a wrapping material sealing the battery element and is provided with at least one resin layer having a polyolefin backbone. When the adhesive film for the metal terminal is measured with a differential scanning calorimeter, a melting peak is observed within the range of 120° C. to 156° C.