38results about How to "Reduce temperature measurement error" patented technology

The invention relates to an embedded type multipoint wireless temperature measurement method of a guide screw, which is characterized in that a wireless temperature measurement device is embedded inside the guide screw; temperature transmitters of the wireless temperature measurement device are distributed in the length direction of the inner wall of the guide screw in a multipoint manner; the peripheries of the temperature transmitters are filled by thermal conduction silicon grease; and the temperature transmitters arranged in a multipoint manner transmit measured temperature data to a Bluetooth receiver of a receiving and processing device through a Bluetooth transmitter. Compared with the prior art, the embedded type multi-point wireless temperature measurement method has the beneficial effects that as the wireless temperature measurement device is embedded inside the guide screw, and the measured temperature data is transmitted to the receiving and processing device through the Bluetooth transmitter, the temperature measurement error is small, the real-time online measurement can be realized, and the remote transmission can be realized; and the measurement error can be controlled within the minimum range, so that the precision of a machine tool is improved, and the product quality is improved.

The invention discloses a temperature indicator segmentation compensating device which comprises a temperature pointer (1), a compensation system and a Bourdon tube (3), wherein the compensation system consists a compensation strip i (2) and a compensation strip ii (4); the revolving shaft of the compensation system is fixedly connected with that of the temperature pointer (1); the compensation strip ii (4) is coaxially connected below the compensation strip i (2); a push rod (5) is arranged below the compensation strip ii (4); and the Bourdon tube (3) is arranged below the push rod (5). The compensation strip ii is arranged coaxially to the compensation strip I, and an eccentricity is arranged between the revolving shaft of the push rood and that of the compensation system and the temperature pointer, or a track groove plate or a cam plate is arranged to limit the rotating track of the push rod so as to realize segmentation compensation of temperature. The temperature indicator is effectively compensated by the segmentation compensating device, thus further reducing the temperature detection error; in addition, the compensating device has simple structure, easy manufacture and low cost, and is beneficial to popularization and application.

The invention supplies a heat pipe temperature measuring system. It includes one heat pipe temperature measuring device and one linear displacement control device. The former includes one setting part, at least one measuring component, at least one pressing board. The setting part is set one setting cavity and at least one inserting hole. Each measuring component includes one load-bearing block, one elastic component, and one thermocouple. One end of the elastic component is connected with load-bearing block. The thermocouple clung to one side of the load-bearing block far from the elastic component to measure heat pipe temperature. Each pressing board is connected with another end of the elastic component. The linear displacement control device is used to control the linear displacement for the pressing board.

The invention provides a temperature measuring device, comprising at least two paths of temperature sensors, a precise reference resistor group, a channel switching device, a precise constant-current source group, a low-pass filter, an analog / digital converter and a controller, wherein the temperature sensors and the channel switching device constitute a temperature measuring channel, and the low-pass filter and the analog / digital converter are connected to constitute a signal processing circuit; the temperature sensors, the precise constant-current source group and the precise reference resistor group are connected with the low-pass filter through the channel switching device; and the controller is respectively connected with the channel switching device, the precise constant-current sources and the analog / digital converter and used for controlling the selection of the precise reference resistors of the precise reference resistor group, the precise constant-current sources of the precise constant-current source group and temperature measuring channels and processing digital signals of the analog / digital converter.

The invention discloses a method for regulating and controlling an air-flowing environment of a heating furnace, which belongs to the field of combustion monitoring and controlling, is applicable to detection and optimal control over combustion of a heating furnace and solves the problems that a mode is needed to be retrained when actual operation work conditions are deviated from preset conditions of the model or when parameters for supporting model operation are detected to be abnormal because an empirical mode is applied in the internal combustion monitoring of the traditional furnace. Themethod comprises the steps of equipment arrangement detection, image number processing and control. According to the method disclosed by the invention, a radioactive energy signal is extracted from flame image in different arranged sections of the heating furnace and is combined with air-flowing environments in the different sections for detecting and calculating reasonable air / combustion ratio, thus the oxidation and burn of steel and furnace tubes caused by the improper air-flowing environments in the heating furnace are reduced and the irregularity of quality of products in different batches is prevented. According to the method, proper air-flowing environments in the furnace can be created, temperature measuring errors are reduced and operation optimization, energy saving and emissionreduction of the heating furnace are realized.

The invention discloses an intelligent sub-area temperature-controlled composite material laying mold and a control method. The control areas are separated by a heat insulation layer to reduce the heat transfer rate between each temperature control area; the circulating fluid is used to increase or decrease the surface temperature of the mold; the circulating pipeline is used to load the circulating fluid and set In the mold body; a temperature control adjustment component, which is used for splitting or merging of the circulating fluid after the temperature is raised or lowered to input different temperature control areas to adjust the surface temperature of the mold body in different temperature control areas; a temperature sensor, It is used to detect the mold surface temperature. The invention can meet the temperature process curve of the thermoplastic composite material member in the stage of laying and in-situ solidification and molding, and can guarantee the quality and performance of the final product.