112results about How to "Improve temperature detection accuracy" patented technology

A semiconductor device equipped with a primary semiconductor element and a temperature detecting element for detecting a temperature of the primary semiconductor element. The device includes a first semiconductor layer of a first conductivity type that forms the primary semiconductor element. A second semiconductor region of a second conductivity type is provided in the first semiconductor layer. A third semiconductor region of the first conductivity type is provided in the second semiconductor region. The temperature detecting element is provided in the third semiconductor region and is separated from the first semiconductor layer by a PN junction.

A semiconductor device provided with a temperature detection function having a high temperature detection accuracy for improving the ESD resistance of a temperature detection diode. The semiconductor device has a semiconductor element. A temperature detection diode is used to detect the temperature of the semiconductor element and an ambient temperature of the semiconductor element. A protection diode is connected between a cathode of the temperature detection diode and a ground side of the semiconductor element when the semiconductor element is activated.

A flexible board includes a base layer, a wiring conductor layer that is located on the base layer, and a cover layer that is stacked over the base layer and covers the wiring conductor layer. A portion of the wiring conductor layer defines connecting portions that connect each of split electrodes of a flexible thermistor. The cover layer includes an opening that exposes the connecting portions, and receives the flexible thermistor. The split electrodes of the flexible thermistor are mounted on the connecting portions of the wiring layer. The height of the exposed surface of the flexible thermistor from the opening is substantially equal to the height of the surface of the cover layer.

Provided is a semiconductor temperature sensor capable of enhancing accuracy of temperature detection. A constant current circuit (13) of a current supply circuit (10a) causes a constant current to flow. A current mirror circuit of the current supply circuit (10a) supplies a temperature detection current from an output terminal thereof according to the constant current of the constant current circuit (13). A temperature detecting circuit (10b) outputs an output voltage according to the temperature detection current and a temperature. A PMOS transistor (19) of a leak current absorbing circuit (10c) has the same size and conductivity type as those of a PMOS transistor (15), and absorbs a leak current included in the temperature detection current (drain current of the PMOS transistor (15)).

A temperature detector of the present invention includes a temperature sensor, a reference signal generation circuit, a level memory which rewritably stores therein a first signal level and a second signal level, a control circuit which controls the reference signal generation circuit so as to make a level of the reference signal change from the first signal level to the second signal level, a comparator circuit which compares the level of the reference signal and a level of the output signal, and a level rewriter which rewrites at least either one of the first signal level and the second signal level. When the level of the reference signal reaches the level of the output signal, the control circuit generates a detected temperature signal, and controls the level rewriter so as to change a range where a level of the reference signal changes.

The invention discloses a wireless temperature control system, and relates to the field of temperature detection. The wireless temperature control system collects temperature in a granary and other places through a receiving end and a transmitting end, realizes accurate collection of the temperature through an electric signal amplification circuit, a digital signal amplitude modulator circuit, a transmission tuning circuit, a first CPU control unit, a second CPU control unit and the like, and also can display the detected temperature in real time through a digital display tube. When a user finds that the detected temperature is not within a standard working range, the user can regulate the temperature of the granary and the other places in time so as to avoid over-wet or over-dry or other conditions. The wireless temperature control system improves temperature detection accuracy, saves manpower, reduces cost, and meets various requirements in practical application.

The invention provides an energy storage container temperature control system and a temperature control method. The temperature control system comprises an air inlet part, an air outlet part, a control part and an air duct part in a box body, and an external air inlet module and an air outlet of an air conditioner are jointly used as an air inlet part. The external air inlet module is composed ofa first electric shutter installed on the air inlet channel and a plurality of air inlet fans. An external air outlet module and an air inlet of each air conditioner jointly serve as an air outlet part, the external air inlet module is composed of a second electric shutter installed on an air outlet channel and a plurality of air outlet fans, an air outlet of each air conditioner is communicated with an air inlet of an air duct part, and an air inlet of each air conditioner is communicated with an air outlet of the air duct part. The system power consumption is greatly reduced while the battery operation storage temperature is ensured, the working efficiency of the energy storage system is effectively improved, and the product income is improved; and meanwhile, the air-conditioner utilization rate is reduced, and the air-conditioner service life is prolonged.

The invention discloses an intelligent motor control protector which comprises a microcontroller, a power supply module, a reset circuit and an RS485 communication circuit. The input end of the microcontroller is connected to a Hall sensor circuit, a voltage acquisition module, a data acquisition module, a three-phase phase sequence detection circuit, a temperature sampling circuit, an operation screen circuit and an anti-interference circuit. The output end of the microcontroller is connected to a voice output module, a relay operation module and a control indication lamp. The voltage acquisition module comprises a phase voltage detection circuit and a voltage conditioning circuit. The current acquisition module comprises a phase current detection circuit and a surge protection circuit. The voice output module comprises a power amplifying circuit and a loudspeaker reminding circuit. The relay operation module comprises a relay protection circuit and a motor module. The intelligent motor control protector has the advantages of novel design, simple structure, complete function and strong practicability, and a three-phase motor is protected through detecting voltage, current, temperature, phase sequence and bearing position information.

The invention discloses a human body temperature detection method, system and device and a thermal infrared image processor. The method comprises the following steps: acquiring a first image acquiredby thermal infrared image acquisition equipment; determining a first image area containing a specified human body part of a target object in the first image; and determining the temperature of the specified human body part according to the image information of the first image area. Temperature detection can be carried out on designated human body parts of multiple target objects at the same time,temperature detection is carried out on the designated human body parts of the target objects, the temperature detection precision is high, high-temperature individuals can be rapidly removed in timeat the same time, and centralized infection or secondary infection is avoided. Meanwhile, non-inductive detection is carried out by acquiring the first image acquired by the thermal infrared image acquisition equipment, and people crowd can be rapidly evacuated without staying. Moreover, temperature detection is carried out on the designated human body part of the target object, interference of anenvironment high-temperature object is avoided, and false detection and false detection are eliminated.

The invention discloses an online continuous detecting device of a butylbenzene rubber reaction converting rate. A section of vertical measuring pipe is arranged on an outlet material pipeline of a butylbenzene rubber device polymerization reactor by a pipe reducer and a rubber cement original pipeline; the large end of the pipe reducer is in seal communication with the vertical measuring pipe, and the small end of the pipe reducer is in seal communication with the rubber cement original pipeline; two pressure measuring points are extracted from the vertical measuring pipe, and a tiny differential pressure transmitter is used for measuring the pressure difference of the vertical pipeline between the two measuring points through which the rubber cement flows; a butylbenzene rubber cement temperature measuring point is arranged in the center in the vertical measuring pipe in the middle of the two pressure measuring points, and a temperature transmitter A is used for measuring rubber cement temperature; and an ambient temperature measuring point is arranged near the tiny differential pressure transmitter, and an ambient temperature transmitter B is used for measuring the ambient temperature. The three measured signal data are transmitted to a computer system for calculating. The invention adopts a conventional instrument and has the advantages of stable and reliable performance, less delay time, rapid response time, good closed loop control effect, convenient maintenance and long service life.