45results about How to "Accurate temperature change" patented technology

A concentration determination apparatus may determine a concentration of a target component in an arbitrary layer of an observed object including a plurality of light scattering medium layers. The concentration determination apparatus may include an irradiation unit, light scattering medium layer selection unit, a light receiving unit, a light intensity acquisition unit, an optical absorption coefficient calculation unit, and a concentration calculation unit.

Provided is a natural convection-driven polymerase chain reaction (PCR) apparatus and method, which can periodically change temperature of a sample to make a natural convection-driven flow in a loop-shaped channel on a disposable polymer chip and contacting heating metal members maintained at different temperatures with channels. The natural convection-driven PCR apparatus includes: a polymer chip having a plurality of channels connected together to form a loop-shaped microchannel, a sample being filled inside the channels; a plurality of heating metal members contacting the loop-shaped microchannel of the polymer chip and transferring heat; a temperature controller connected to the heating metal members to maintain the heating metal members at different temperatures; a plurality of heaters connected to the heating metal members and the temperature controller to supply heat to the heating metal members; and temperature sensors connected to the heating metal members and the temperature controller.

A system and method for measuring a junction temperature of a power module junction temperature are provided. The method is capable of improving accuracy of temperature measurement by more accurately applying temperature change in a junction temperature rising section, capable of more accurately predicting durability life of a power module, and capable of increasing output power of the power module.

A method for reducing errors in the measurement of temperature by magnetic resonance, for use in magnetic resonance imaging-guided HIFU equipment, includes acquiring an MR phase image, as a reference image, before heating an area to be heated with the HIFU equipment; acquiring another MR phase image, as a heated image, during or after the heating by the HIFU equipment; and calculating the temperature change in the heated area according to said heated image and said reference image; and making compensation to said temperature change according to the change in the magnetic field caused by the position change of an ultrasonic transducer in said HIFU equipment. The method can reduce significantly the temperature errors resulting from the position changes of the ultrasonic transducer.

The invention provides a test system and method for a turbine blade integrated thin film temperature sensor, which solves the problem that the existing turbine blade integrated thin film temperature sensor cannot adopt an industrial thermocouple temperature measurement calibration mode. The system comprises a heating box, an instantaneous heating unit, an imaging unit, a standard thermocouple, a check meter and a control unit, wherein the instantaneous heating unit comprises a laser, a condensation unit and a rotary table; the condensation unit is located outside the observation opening in the side wall of the heating box and on an emergent light path of the laser; the condensation unit is arranged on the rotary table; the imaging unit is arranged outside the observation opening of the heating box; the number of the standard thermocouples is equal to that of the thin film temperature sensors on the turbine blade to be measured, and the positions are in one-to-one correspondence; the thin film temperature sensor and the standard thermocouple are respectively connected with the check meter; the control unit controls the emergent energy of the laser and is connected with the rotary table; and the control unit compares the temperatures obtained by the thin film temperature sensor and the standard thermocouple, and judges whether the performance of the thin film temperature sensor is qualified or not.

A hot runner nozzle structure includes a tubular nozzle and at least one temperature measurement component. The tubular nozzle has an outer wall surface and an inner wall surface defining a flow channel. The tubular nozzle has portions defining at least one thru-hole interconnected the outer wall surface and the inner wall surface. The temperature measurement component has a base and a sensor connected to the base. The base is fixed in the thru-hole. The sensor has a tip protruding beyond the inner wall surface and exposed in the flow channel.

Prior to recording/reproducing information to/from an optical disk rotationally driven by a spindle motor, an optical pickup is moved to a plurality of measuring positions set beforehand in a radial direction of the optical disk. A relative tilt between the optical disk and the optical pickup is detected with the spindle motor being rotated so that a linear velocity at each of the measuring positions equals a linear velocity upon actually recording or reproducing the information thereat. The tilt detected at each of the measuring positions is stored as tilt detection data corresponding to each of the measuring positions.

The present disclosure relates to an apparatus embodied in order to correct efficiently changing of measured temperature value in a temperature sensor according to influence of irradiance. A radiosonde related an exemplary embodiment of the present disclosure includes a first temperature sensor; a second temperature sensor having higher emission ratio than the first temperature sensor; and a measuring unit in order to calculate corrected temperature value, but the radiosonde and the third temperature sensor are installed in a chamber before flying of the radiosonde, a first temperature change detected by the first temperature sensor by output light in a sunlight simulator and a second temperature change detected by the second temperature sensor are induces, compensation factors may be derived using the first temperature change, the second temperature change, and temperature value measured by the third temperature sensor.

The invention discloses a method for quickly detecting the temperature of a power device. The method comprises the steps of enabling a 0402 packaged temperature sensor to be welded on a flexible printed circuit (FPC), forming a very narrow groove in a radiator under a heat dissipation substrate of the power device, enabling the size of the flexible printed circuit to be equivalent to the size of the groove during the design of the flexible printed circuit, coating the flexible circuit board welded with the temperature sensor with heat conduction silicone grease and then extending into the groove, then covering the flexible circuit board with the ceramic chip with the two sides coated with the heat conduction silicone grease, and finally attaching the power device to the ceramic chip and locking through the elastic piece. The temperature change of the power device can be followed very quickly and accurately; strong and weak electricity isolation is realized between the temperature sensor and high voltage; the thermal resistance between the heat dissipation substrate of the power device and the radiator is not influenced; and the method is low in cost, convenient to install and rapidand accurate in detection.

The invention discloses an intelligent adjustable self-heating inoculator for microbial experiments. The inoculator comprises a head inoculating loop, a sliding rod and a handle which are connected in sequence, wherein the head inoculating loop comprises an inoculating needle and two spliced inoculating loops; the inoculating needle is mounted at the top of the sliding rod; a sliding block track and two sliding blocks are arranged in the sliding rod; the bottoms of the spliced inoculating loops are connected with the sliding blocks; a gear shifting mechanism comprises a push button, a guide rail sliding block and two connecting rods; the guide rail sliding block is arranged at the handle; the push button is assembled on the guide rail sliding block in a sliding manner; the handle comprises a constant-temperature heating device and a temperature controller which are connected with a battery through wires; the constant-temperature heating device is used for heating and adjusting the temperature of the head inoculating loop; and the temperature controller electrically connected with the constant-temperature heating device is used for monitoring the environment temperature and the overall temperature of the head inoculating loop. The inoculator is simple to operate and low in cost, and can meet the requirements of various microbial experiments.

A visible-light-image physiological monitoring system with thermal detecting assistance is disclosed. The system takes a visible-light image and a thermal image of a body at the same time. A processing unit identifies a body feature of the visible-light image and determines a coordinate of the feature. In a learning mode, an initial temperature of the body feature is determined from the thermal image according to the coordinate of the body feature. After then, a physiological status monitoring mode is executed to monitor the temperature changes of the body feature and output an alarm when the temperature is determined to be abnormal. Therefore, a monitoring accuracy of the visible-light-image physiological monitoring system is increased and avoids transmitting false alarms or no alarms.

The present invention provides a system and method of predicting the initial cooling of a superconducting magnet, which can predict the change in initial cooling temperature of a superconducting magnet when the superconducting magnet is cooled using an ultra-low refrigerator. In the system and method, the change in cooling temperature of a superconducting magnet can be accurately predicted by classifying influence factors related to the cooling of a superconducting magnet into a plurality of control volumes and inducing a governing equation with respect to each of the control volumes. Based on this system and method, the reliability of basic data required to design an apparatus for measuring a high magnetic field for forming an ultralow-temperature environment can be greatly improved.

The present invention discloses a pickled vegetables refrigerator. It includes the following several portions: external box formed into appearance of refrigerator; internal box placed in the interior of external box for storing various foods; refrigerant tube which is coiled on the external side surface of internal box and whose interior can allow the refrigerant to flow and make heat exchange; cooling unit formed from cooling sensor for detecting internal box coaling temperature; and heating unit which is coiled and set on lower side of cooling unit, in the heating unit interior are set a heater capable of releasing a certain heat quantity to raise internal box temperature and a heating sensor for detecting internal box temperature.

The invention relates to a building board with an automatic cooling function. The building board comprises a base board, and an annular side board capable of forming a cavity above the base board in a surrounding mode is arranged on the edge of the upper end of the base board. Cushion blocks are distributed in the cavity above the base board, and each cushion block is internally provided with a fastener used for being fixedly connected with concrete of a roof. An air pipe capable of exhausting air into the cavity is connected to the middle of the annular side board, and the air pipe is connected with an air pump. A thermistor is arranged in the cavity and connected between the power connection end of the air pump and a power supply in series. The bottom of the annular side board is connected with a drainage pipe. A waterproof layer is arranged on the lower surface of the base board, and a decoration structure layer is arranged under the waterproof layer. Compared with the prior art, a cement layer at the top can be quickly cooled, a comfortable indoor effect is achieved, the sound insulation effect is enhanced, and the using effect of the cement layer is extended.