567 results about "Temperature response" patented technology

An on demand tankless water heater system that is capable of quickly delivering water within a desired temperature range. The tankless water heater provides a hybrid heating method that contains a primary heating system and a secondary heating system disposed in a buffer tank that cooperate to facilitate control of output water temperature during water usage. A pressure differential switch detects low flow demand and allows the secondary heating system to provide immediate heating to the water. This secondary heating system provides a faster temperature response and fine tuning of output water temperature.

A temperature measurement system capable of operating in harsh environments including a temperature sensor having an antenna, diode, and dielectric layer disposed on the object of interest is provided, wherein the antenna includes a buried portion that extends through and is electrically coupled to the object of interest, and an exposed portion disposed upon an outer surface of the dielectric layer and the diode is coupled between the object of interest and the exposed portion of the antenna. The antenna is configured to receive interrogating signals from a transmitter, and to transmit response signals corresponding to the resonant frequency of the temperature sensor and its harmonics, which are indicative of the measured temperature of the object of interest. A receiver detects the response signals and correlates the frequency to a known temperature response of the dielectric material. Methods of making and using the temperature measurement system are also provided.

An infra-red imaging camera comprises focusing optics for gathering infra-red energy from an external scene, and an uncooled and unshielded detector arranged to detect infra red energy. Internal temperature sensing together with approximation of the temperature response of the camera provides a time varying calibration that allows the infra-red energy received at the detector to be used as a temperature measurement for objects in the camera's field of view.

A lighting system includes one or more methods and systems to control the color spectrum of a lamp in response to both temperature and dim levels. In at least one embodiment, the lighting system includes a controller to control a correlated color temperature (CCT) and intensity of the lamp by independently adjusting currents to electronic light sources based on a dim level of the lighting system and temperature of the lighting system. The controller controls a first current to a first set of LEDs and a second current to a second set of LEDs. The control of the first current by the controller is jointly dependent on a dim level and temperature in the lighting system. In at least one embodiment, the control of the second current is dependent on the dim level or the dim level and temperature.

A methodology is provided for informing targeted Demand-Response (DR) and marketing programs that focus on the temperature-sensitive part of residential electricity demand. The methodology uses energy consumption readings collected from “smart” electricity meters, as well as hourly temperature readings. Individual consumption is decomposed into a thermal-sensitive part and a base load (non thermally-sensitive), a model of temperature response that is based on thermal regimes, i.e., unobserved decisions of customers to use their heating or cooling appliances. This model is used to extract useful benchmarks that compose a thermal profiles of individual customers, i.e., terse characterizations of the statistics of these customers' temperature-sensitive consumption. This knowledge may, in turn, inform the DR program by allowing scarce operational and marketing budgets to be spent on customers whose influencing will yield highest energy reductions at the right time. Methods are also provided for scheduling optimal, individual customer controls of the thermal appliance to achieve a desired profile of the aggregate energy reductions.

The invention discloses a method for calibrating and correcting temperature measurement of an infrared probe as well as a corresponding temperature measuring method. The temperature measurement calibration and non-uniform correction process is as follows: the non-uniform correction is carried out firstly; the temperature measurement calibration is carried out after a collection parameter sum is generated; however, the non-uniform correction is not stopped simultaneously; and in the non-uniform correction, a step of circularly judging whether an extrusion exists in a parameter or not is carried out; and if so, the parameter is corrected; otherwise, the judgment is continuously carried out. A temperature measurement calibrating process comprises the following steps of: carrying out the non-uniform correction once by using the calculated non-uniform parameter for each probe response of collecting a temperature; then recording the temperature and probe response data; repeating the processuntil collecting enough data; and fitting the data to obtain a probe temperature response function. By utilizing the method disclosed by the invention, the steps of non-uniformly correcting and calibrating the temperature measurement of the infrared probe are simplified into one step, so that the correction and the calibration which can be previously realized by the two steps are conveniently realized on one hand, and the precision of the temperature measurement can be improved on the other hand.

An on demand tankless water heater system that is capable of quickly delivering water within a desired temperature range. The tankless water heater provides a hybrid heating method that contains a primary heating system and a secondary heating system disposed in a buffer tank that cooperate to facilitate control of output water temperature during water usage. A pressure differential switch detects low flow demand and allows the secondary heating system to provide immediate heating to the water. This secondary heating system provides a faster temperature response and fine tuning of output water temperature.

A method for correcting frequency errors in the local reference frequency crystal oscillator of a GPS receiver begins with a step in which the ordinary temperature response of a crystal is characterized. A hardware circuit is incorporated with that crystal to mirror that same characteristic. A temperature sensor is used to control a compensation applied. The combination outputs a fairly flat temperature response, e.g., near zero delta-frequency change over the operating temperature range. But this flat response has an unknown offset from the true frequency. A next step finds a precision timing reference, such as when the receiver locks onto and tracks GPS satellites. The receiver then knows time precisely and a navigation software can compute the offset accurately. A value is stored for that offset in memory. Such value is thereafter recalled at each cold start and is used by software to remove the expected frequency offset.

The invention designs a preparation method and application of a polymer hollow microcapsule. The method comprises the following steps of using nano cellulose as an emulsifier of a Pickering emulsion,adding an initiator, a monomer and a cross-linking agent into a discontinuous phase of the emulsion, afterwards, using the Pickering emulsion as a template, and preparing the polymer hollow microcapsule through the polymerization and cross linking reactions, in a liquid drop of the emulsion, of the monomer. The nano cellulose used in the method has advantages of being good in biocompatibility, wide in source, low in cost, green and environmental friendly, and the like; the range of a polymer to which the method is applicable is wide; hydrophobic and hydrophilic polymer monomers can be selectedand used; an environmental stimuli-responsive polymer or a polymer with a special function, such as a pH (potential of Hydrogen)-response, temperature-response or conducting polymer and the like, canbe selected and used; moreover, the method is simple, convenient and quick; reaction conditions are simple; the polymer hollow microcapsule is adjustable in particle size, low in cost and easy in quantity production and the obtained polymer hollow microcapsule can be used for the entrapment and the controlled release of a medicine and can be widely applied to the fields of medicines, agricultureand the like.

A system and method for detecting breakage, rupture or malfunctioning of a pipe or cable structure, including sensing elements for monitoring the structure and placed in, on or around the structure for monitoring the breakage, rupture or malfunctioning of the structure. The sensing elements provide sensing data regarding events related to breakage, rupture or malfunctioning and are placed near the structure so as to perform a breakage, rupture or malfunction detection function, and within a distance sufficient to obtain a measureable strain, tension, torsion, vibration, acceleration, and/or temperature response signal based on the breakage, rupture or malfunctioning of the structure. One of the sensing elements is based on Coherent Rayleigh Noise (CRN) sensing techniques, and the system is configured to interpret the sensed data for determining the breakage, rupture or malfunctioning of the structure.

The invention discloses a constant-temperature-type gas water heater control system and with a rapid and accurate temperature-regulating characteristic and a control method. The control system is characterized by comprising a singlechip, an ignition control loop, a flame detection loop, a fan rotation speed control loop, a gas main valve control loop, a gas proportional valve control loop, a water flow pulse signal input loop, a water temperature signal input loop of cold-hot water temperature, a fan rotation speed feedback loop, a temperature setting loop, a temperature display loop and the like, wherein the water flow pulse signal input loop, the water temperature signal input loop of cold-hot water temperature and the temperature setting loop respectively transmit the water flow rate, the actual temperatures of inlet and outlet water and the set temperature to the singlechip in real time; and a gas main valve is used for the opening and closing control of a gas passageway, a gas proportional valve is used for achieving the dual closing of the gas passageway or the flow rate regulation and temperature control, and a fan control loop is used for achieving the air volume regulation function through controlling the rotation speed of a motor. The system and the method provided by the invention aim to overcome the defect that the existing gas water heater control system and the method can not combine the temperature regulation accuracy and response speed simultaneously, and aim to provide the control system and the method with high temperature regulation accuracy and rapid temperature response.

The invention discloses a hepatic targeted temperature sensitive microsphere and a preparation method therefor, and belongs to the functional polymer material field, and especially relates to a drug sustained release and targeted drug delivery material and a preparation method therefor. The temperature response range of the material is 25 DEG C-37 DEG C, and the particle size of the microsphere is about 500nm. The microsphere can be prepared through the following method: glycyrrhetinic acid (GA) is modified by ethylene diamine and acrylic acid (AAc) and vinyl monomers are generated; ammonium persulfate (APS) is employed as an initiator, N,N-methylene bisacrylamide (MBA) is employed as a cross-linking agent, hepatic targeted temperature sensitive microspheres are prepared through a semicontinuous soap-free emulsion polymerization method. The preparation method has simple technological processes, and mild experiment conditions, needs no special devices, has a low investment cost, and has good operability. The reagents are all common reagents. The reaction residues are easy to remove. The preparation method is convenient for industrial implementation.

The present invention provides an unbalanced polarization maintaining fiber dual-interferometer temperature strain simultaneous measurement device and method. A polarization-maintaining fiber coupler,a phase modulator, a polarization-maintaining fiber and a polarization-maintaining fiber reflector form an unbalanced polarization-maintaining fiber interferometer. A light source injects light intoa fast axis and a slow axis through a polarizer at the same time for transmission, coaxial transmission signal interference is achieved in the interferometer, interference signals are detected by a polarization beam splitting difference detection device formed by a polarization-maintaining circulator, a polarization beam splitter and a photoelectric detector, and finally, a signal collection and demodulation and record device processes the interference signals. Parameters of the fast axis and the slow axis of the polarization maintaining fiber are different to allow fast-axis signals and slow-axis signals to have different responses for the same temperature and the same strain, and an unbalanced interferometer structure is employed to construct an orthogonal response matrix and measure temperature response coefficients and strain response coefficients of two paths of interference signals to achieve simultaneous measurement of temperatures and strains. The unbalanced polarization maintaining fiber dual-interferometer temperature strain simultaneous measurement device and method solve the intersection sensitivity problem, the measurement result is accurate and stable, and the sensitivity is high.