1115results about How to "Accurate temperature" patented technology

An object of the invention is to calibrate an upper pyrometer for indirectly measuring a substrate temperature at the time of epitaxial growth in a comparatively short time and with accuracy to thereby improve the quality of an epitaxial substrate. After calibrating an upper pyrometer by a thermocouple mounted to a temperature calibrating susceptor, a measured value of a lower pyrometer is adjusted to a calibrated value of the upper pyrometer. Then, a correlation line between substrate temperature indirectly measured by the upper pyrometer at the time of epitaxial growth onto a sample substrate and haze of a sample substrate measured immediately after epitaxial growth is set to indirectly measure a substrate temperature by the upper pyrometer at the time of epitaxial growth onto a mass-production substrate. Moreover, substrate temperature at the time of epitaxial growth onto the mass-production substrate is estimated by applying the haze of the mass-production substrate measured immediately after epitaxial growth to the correlation line and then a measured temperature of the upper pyrometer is adjusted to the estimated temperature.

A controller for a rechargeable battery and a temperature estimation method and a deterioration determination method for a rechargeable battery enabling an accurate battery temperature to be obtained through calculation. The controller calculates a heat generation amount of Joule heat generated in the rechargeable battery and a heat generation amount of chemical reaction heat generated in the rechargeable battery to calculate the battery temperature of the rechargeable battery based on the calculated Joule heat generation amount and the calculated chemical reaction heat generation amount. When a cooling device is connected to the rechargeable battery, the controller preferably calculates the battery temperature of the rechargeable battery using the Joule heat generation amount, the chemical reaction heat generation amount, and a value indicating the cooling capability of the cooling device.

A battery housing structure, in an electric vehicle, is operable to regulate a temperature of a battery disposed between front and rear wheels of the vehicle. The battery housing structure includes a main housing body for receiving the battery, inlet and outlet ports for respectively supplying air to and discharging air from the main housing body; and a fan for discharging air from the main housing body. A bypass passage is provided in the battery housing structure for selectively connecting a downstream side of the fan with the inlet ports. First and second air flow control valves are also provided in the battery housing structure for selectively controlling and routing the flow of air within the battery housing structure.

A valve overlap period is increased as a desired torque of an engine increases by advancing an opening timing of an intake valve at a rate greater than that of retarding a closing timing of an exhaust valve in a low engine-torque area in which the desired torque of the internal combustion engine is relatively low (step S16). The valve overlap period is increased as the desired torque of the engine increases by retarding the closing timing of the exhaust valve at a rate greater than that of advancing the opening timing of the intake valve in a high engine-torque area in which the desired torque of the internal combustion engine is relatively high (step S17). Accordingly, the drivability can be improved by obtaining the proper torque and the smooth torque curve in the wide driving area.

The invention is a video frequency real-time displaying control device for infrared heat imaging image and visible image. The device includes a computer, an infrared heat imaging device, visible camera whose field angle can match with it; there has a video collecting card on the interface slot of the computer, the infrared image device and the visible camera are fixed on the same platform; there stores control, temperature measuring, image processing and displaying procedure model, it can remote control the platform, the infrared heat device and the visible light camera, they can be rotated synchronously, the field angles of the posterior two match, and makes the heat imaging image and the visible light image can coincided with the coordinate of the computer monitor. The invention can carry on real-time memorization, displaying, imaging, and playbacks the heat imaging image and the visible light image, it also can display the temperature valve and position coordinates of the object, it also has merits of infrared imaging and visible light image.

A cooking apparatus includes a bottomed-box-shaped container that contains an object; a discharging path through which at least part of hot air is discharged to the outside; an exhaust adjustment unit that adjusts the flow rate of discharge of the hot air through the discharging path; and a controlling unit that controls the exhaust adjustment unit, wherein the controlling unit controls the exhaust adjustment unit in such a manner that the flow rate of discharge of the hot air during a heating operation falls within a predetermined condition.

A battery pack includes at least one battery module comprising a plurality of unit cells stacked together; and at least one thermoelectric module on the at least one battery module, wherein the thermoelectric module may include a Peltier device having an input terminal configured to receive a polarity-convertible current.

A system for treating uterine disorders includes a catheter with a cannula having a proximal end and a distal end, and a degassing system in communication with the distal end of the cannula. The degassing system has a fluid insertion path having a first check valve and a gas filter, and a fluid extraction path that is separate from the fluid insertion path and includes a second check valve. The catheter may include an inflatable balloon secured to the distal end of the cannula with the degassing system in communication with the inflatable balloon. In one embodiment, a heating assembly is disposed inside the inflatable balloon for heating the fluid introduced into the balloon.

An ultrasonic measuring unit and a method for detecting ultrasonic signal run-times, in which the ultrasonic measuring unit has two ultrasonic transducers for coupling ultrasonic signals into a flowing medium. Analysis electronics are provided to be accommodated on or in a flow tube, in which a gaseous medium such as circulating air flows. A probe unit is accommodated in the flow tube, the probe unit being assigned a temperature probe having a flow around it, whose measured value is used for correcting a temperature signal detected by ultrasound.

The invention provides an electric cooker and a control method thereof. The control method comprises the following steps: after the electric cooker is started, the electric cooker is controlled to be heated at the first average power; when the temperature in the electric cooker reaches a first preset temperature, heating of the electric cooker is controlled to be stopped temporarily; first preset time later, the electric cooker is controlled to be continuously heated at the first average power; when the temperature in the electric cooker reaches a second preset temperature, the electric cooker is controlled to be heated at the second average power, wherein the first preset temperature is larger than the second preset temperature, the power regulation ratio of the second average power is smaller than that of the first average power and the power regulation cycle of the second average power is larger than that of the first average power; when the temperature in the electric cooker reaches a boiling balance temperature point, the electric cooker is controlled to be heated at the third average power so as to keep boiling; and second preset time later, heating of the electric cooker is controlled to be stopped. According to the electric cooker and the control method thereof, the fact that the electric cooker reaches boiling temperature and material in the electric cooker does not overflow can be guaranteed and temperature control is more accurate.

A method and apparatus for predicting junction device temperature of at least a first switching device in a power conversion module that includes the first switching device and at least a second switching device, the method comprising the steps of identifying a cross thermal impedance value indicative of how the temperature of the second switching device effects the first switching device temperature an using the cross thermal impedance value to predict the temperature of the at least a first switching device.

Disclosed are a process and apparatus for selective catalytic reduction of NO_x. The process is enabled by passing a heat exchanger section, such as an economizer, of the boiler in advance of an SCR unit at low load conditions to enable NO_x reduction even at low loads using urea instead of ammonia. In a preferred form, under high load conditions, the bypass can be almost fully closed and the economizer can be operated normally without excessively cooling the combustion gases, using only a portion of bypassed gases which are hot enough to decompose the urea into its active components including ammonia.

An electrostatic chuck which is built in a heater and can change, at a high speed, the temperature distribution of a wafer being processed by a plasma is provided at low cost. Also, there is provided a processing method which realizes uniform etching by suppressing CD variations in the plane of the wafer even when etching conditions change. The electrostatic chuck includes a base material in which multiple coolant grooves are formed, a high resistance layer which is formed on the base material, multiple heaters which are formed by thermally spraying conductors within the high resistance layer, multiple electrostatic chuck electrodes which are formed similarly by thermally spraying conductors within the high resistance layer, and temperature measuring means, and adjusts outputs of the heaters on the basis of temperature information of the temperature measuring means.

A nonvolatile memory is accessed by a memory control circuit and stores temperature information indicating a temperature measured by a temperature sensor. A power supply control circuit supplies a first power supply voltage to the temperature sensor in response to a request for temperature measurement received via an antenna, and supplies a second power supply voltage to the nonvolatile memory and the memory control circuit after the temperature sensor measures the temperature. While the temperature sensor is measuring the temperature, the nonvolatile memory and the memory control circuit do not operate and thus do not generate heat. Therefore, the temperature sensor can accurately measure the temperature without being influenced from the heat generation caused by the operation of circuits in an RFID transponder.

The invention discloses a refrigerator and its temperature control method. The method comprises the following steps: detecting the current temperature of a variable-temperature chamber; judging whether a difference between a shutdown temperature of the variable-temperature chamber and the current temperature is not lower than a first difference temperature; if yes, detecting an ambient temperature of the refrigerator, and judging whether the ambient temperature is not higher than a preset ambient temperature; and if yes, controlling a temperature compensation heater in a first preset mode to heat the variable-temperature chamber, otherwise controlling the temperature compensation heater to operate in a second preset mode. The refrigerator temperature control method of the inventive embodiment can precisely control the temperature compensation heater to carry out temperature micro-adjustment on the variable-temperature chamber in different modes when the set temperature of the variable-temperature chamber is relatively high (usually used for a refrigerating chamber), to make the temperature of the variable-temperature chamber quickly reach the set temperature, and has advantage of high control accuracy, thus contributing to food storage in the variable-temperature chamber and improving practicability of the refrigerator.