摘要:
A meter for determining chill temperature and/or comfort index. This meter utilizes a composite sensor that is responsive to the environmental factors that produce a chill temperature as perceived by a person in that environment. Specifically, the sensor is responsive to the combined effects of wind velocity, real temperature, solar radiation and humidity. In the most general embodiment, the output signal from the sensor is fed to a programmed microprocessor wherein that signal is repetitively sampled, averaged and converted to an appropriate signal so as to be appropriately displayed. In order to prevent adverse affects upon the average by spurious large signals, the microprocessor is programmed to limit any sample signal to a value that differs from the average by only a selected amount. The normal signal from the sensor is proportional to the square root of the power, and the microprocessor first squares that signal prior to the averaging step. Since the sensor produces an analog signal, and the microprocessor uses digital signals, an analog-to-digital converter is used. In those instances where it is desired to accentuate the effect of a specific environmental factor, a complimentary sensor for that factor is used to produce a modification of the average value and thus cause the generation of a selected response for the meter.
摘要:
An enthalpy calculator unit outputs a value of enthalpy directly from two measured parameters, such as dry bulb temperature and relative humidity, and includes a humidity sensor 17 for converting a measured relative humidity into an electrical signal; temperature sensors for converting a measured temperature into electrical signals; and arithmetic units for calculating the enthalpy and for outputting electrical signal corresponding thereto after performiing a calculation based on the signals input by the sensors in accordance with the following equation:i=(ae.sup.bt -c)(t+d).psi.+mt+nwherea, b, c, d, m, and n are constants, and:t: dry bulb temperature (.degree.C.).psi.: relative humidity (%),and a, b, c, d, m, and n are selected so that .vertline.i-i.sub.0 .vertline..ltoreq.0.5 within a fixed temperture range if:i.sub.0 =0.240t+(597.3+0.441t)xx=0.622.multidot..psi..multidot.h/(P-.psi..multidot.h)whereP: atmospheric pressureh: saturated vapor pressure under the atomspheric pressure P.
摘要:
An apparatus for measuring thermal discomfort originating from an asymmetry in a thermal field comprises two blackened surfaces facing in opposite directions and maintained at a common temperature higher than that of the surrounding air. The difference in power required to maintain the same higher temperature of the two surfaces is measured and is an expression of the thermal discomfort. If the thermal influence varies with time the probe may have the same thermodynamic characteristics as the human skin or these characteristics can also be obtained by an electric filter.
摘要:
A first thermometer is conventionally calibrated and a second is calibrated to read a predetermined temperature lower than actual temperature and provided with a heater resistor in good heat transfer relation to its bulb. Switch means connects a battery to the resistor to heat the second thermometer until it is observed to read the same as the first. Then the switch is repositioned such that appropriate circuitry causes reduced heating such that the elevated temperature condition of the second thermometer is merely "held" at that position and the bulb of the second thermometer is exposed to the wind and after a predetermined time (on the order of 30 seconds) the second thermometer is read, its reading representing the effective temperature as the result of wind chill.
摘要:
The instrument comprises means for measuring the ambient air temperature and providing a first signal proportional to the temperature, means for providing a second signal proportional to the non-evaporative rate of body heat loss in K Cal./m.sup.2 hr, and means for providing a third signal representative of the thermal insulation resistance of still air outside of clothing. Means is also included for measuring the fraction of full sunlight intensity reaching a person wearing the clothing, and for providing a fourth signal representative thereof, and further means for providing a fifth signal representative of the absorptance of the clothing. Further means adds the first signal to the product of the second and third signals and to the product of 230 and the third, fourth and fifth signals and substracts the product of 0.18 and the second signal, and provides an output signal, which is representative of the still shade temperature.
摘要:
A control apparatus responding to enthalpy or "total" heat content, temperature and moisture content, of air wherein a moisture responsive element changes in length and is reset by a temperature responsive element to control a switch with means to limit the effect of the moisture responsive element above certain levels of moisture so the switch is controlled only by temperature.
摘要:
An air quality sensing apparatus for measuring, monitoring and controlling temperature and air relative humidity of air interior a room, including an apertured housing enclosing temperature and humidity sensing devices and an asperating tube fluidly interconnecting the interior of the housing and a return air system.
摘要:
Surface modification control stations and methods in a globally distributed array for dynamically adjusting the atmospheric, terrestrial and oceanic properties. The control stations modify the humidity, currents, wind flows and heat removal rate of the surface and facilitate cooling and control of large area of global surface temperatures. This global system is made of arrays of multiple sub-systems that monitor climate and act locally on weather with dynamically generated local forcing & perturbations for guiding in a controlled manner aim at long-term modifications. The machineries are part of a large-scale system consisting of an array of many such machines put across the globe at locations called the control stations. These are then used in a coordinated manner to modify large area weather and the global climate as desired. The energy system installed at a control stations, with multiple machines to change the local parameters of the ocean, these stations are powered using renewable energy (RE) sources including Solar, Ocean Currents, Wind, Waves and Batteries to store energy and provide sufficient power and energy as required and available at all hours. This energy is then used to do directed work using special machines, that can be pumps for seawater to move ocean water either amplifying or changing the currents in various locations and at different depths, in addition it will have machineries for changing the vertical depth profile of the ocean of temperature, salinity and currents. Control stations will also directly use devices such as heat pumps to change the temperatures of local water either at surface or at controlled depths, or modify the humidity and salinity to change the atmospheric and oceanic properties as desired. The system will work in a globally coordinated manner applying artificial intelligence and machine learning algorithms to learn from observations to improve the control characteristics and aim to slow down the rise of global surface temperatures. These systems are used to reduce the temperatures of coral reefs, arctic glaciers and south pacific to control the El Nino oscillations.
摘要:
A clippable air condition monitoring device detects air parameters inside an enclosed space below a canopy of an infant carrier. The clippable air condition monitoring device includes a generally U shaped flexible member configured to snap fit on an edge of the canopy, and one or more sensors positioned on the flexible member. The sensors are configured to detect one or more air parameters which determine comfort of an infant seated under the canopy of the infant carrier. In an embodiment, the flexible member is made of an elastic material. In an embodiment, the air parameters comprise one or a combination of temperature, relative humidity and heat index.
摘要:
A hand-held monitor (10) for monitoring environmental or physiological conditions affecting the user. The monitor (10) has a main housing (10a) and a sensor module (10b). The sensor module (10b) has a plurality of sensors (33-36) extending from it. The sensor module (10b) is generally cylindrical in shape and rests in a curved cradle (14c) of the main housing (10a). This permits the sensor module (10b) to rotate between a position in which the sensors are deployed and extend outwardly from the main housing (10a), and a position in which the sensors rest in the main housing (10a). The main housing (10a) contains processor-based electronics circuitry (50) for processing the data acquired by the sensors. The sensor module (10b) contains sensor electronics circuitry (60), including all circuitry unique to the sensors, and is easily detachable from the main housing (10a). This permits sensor modules having the same or different sensors to be easily interchanged.