摘要:
The invention is directed to a method of evaluating the signal of an infrared thermometer for measuring human body temperature, in which the infrared thermometer includes a probe adapted to receive thereon a probe cover or protective film sufficiently transparent to infrared radiation, and in which on a measuring operation performed with the probe cover or protective film in “installed” condition the signal is evaluated, so that a measuring operation is performed also when the probe cover or protective film is not installed, with an appropriate allowance being made for the consequently more intensive infrared radiation by different signal evaluation.
摘要:
A method of calibrating a radiation thermometer including a radiation sensor that is characterized by a sensitivity (S) and a temperature-responsive resistor that serves as an ambient temperature sensor, the temperature-responsive resistor having at a specified reference temperature a reference resistance (R0). The method includes the steps of using a first radiation standard having a known temperature TS(1); while the ambient temperature sensor is at a first ambient temperature TU(1), using the radiation thermometer to read the temperature of the first radiation standard; while using the radiation thermometer to read the temperature of the first radiation standard, measuring a first output signal U(1) of the radiation sensor; using a second radiation standard having a known temperature TS(2); while the ambient temperature sensor is at said first ambient temperature TU(1), using the radiation thermometer to read the temperature of the second radiation standard; while using the radiation thermometer to read the temperature of the second radiation standard, measuring a second output signal U(2) of the radiation sensor; and calibrating the radiation sensor and the ambient temperature sensor by using TS(1), TS(2) and the values obtained for U(1) and U(2) and without using any value for TU(1) that is derived from measuring an output of the ambient sensor, wherein the step of calibrating involves calculating at least one of the reference resistance (R0) of the ambient temperature sensor, the ambient temperature (Tu), and the sensitivity (S) of the radiation sensor.
摘要:
A method of calibrating a radiation thermometer including a radiation sensor and an ambient temperature sensor, the method including the steps of using a first radiation standard having a known temperature T.sub.S (1) and with the ambient temperature sensor at a first ambient temperature T.sub.U (1), using the radiation thermometer to read the temperature of the first radiation standard and while doing so, measuring a first output signal U(1) of the radiation sensor; using a second radiation standard having a known temperature T.sub.S (2) and with the ambient temperature sensor again at the first ambient temperature T.sub.U (1), using the radiation thermometer to read the temperature of the second radiation standard and while doing so, measuring a second output signal U(2) of the radiation sensor; and calibrating the radiation sensor and the ambient temperature sensor by using the values obtained for U(1) and U(2) and without using a value for T.sub.U (1) that is derived from measuring an output of the ambient sensor.
摘要:
The invention is directed to a process for manufacturing a protective cap which is adapted to be fitted to an ear canal temperature measurement probe of an infrared radiation thermometer and to be introduced into a body cavity. The protective cap (1) is formed of a base body (3) of plastic material having its one end open and its opposite end closed by a window film (7) transparent to infrared radiation. In a first step of the process, at least one hole (5) is made in a sheet-, film-, web- or plate-shaped base body material intended to form the base body (3). In a second step of the process, the perforated base body material (6) is covered at least in the area of the hole (5) with a window film (7) fabricated from a plastic material transparent to infrared radiation and joined to the base body material (6) in an immovable manner. Subsequently, this composite body is shaped into a protective cap (1) in a third step and, where applicable, said cap is processed to the final dimensions of the protective cap (1) in a fourth step. This enables a plurality of protective caps (1) to be manufactured as on a conveyor line very simply and in no time.
摘要:
The invention is directed to a protective cap (2) for a temperature measurement probe (30) of an infrared radiation thermometer (1) that can be introduced into a body cavity (31). The protective cap (2) is comprised of a base body (12) shaped to fit the body cavity (31) and having a window (15) transparent to infrared radiation. The base body (12) is provided with additional structures (13; 18, 20) at least in parts to improve heat insulation between the temperature measurement probe (30) and the body cavity (31). This heat insulation of the temperature measurement probe (30) prevents measurement errors by the infrared radiation thermometer (1).
摘要:
A protective cap (2) for a temperature measurement probe (30) of an infrared radiation thermometer (1) that can be introduced into a body cavity (31). The protective cap (2) includes a base body (12) shaped to fit the body cavity (31) and having a window (3) transparent to infrared radiation. The base body (12) is provided with additional structures (13; 18, 20) at least in parts to improve heat insulation between the temperature measurement probe (30) and the body cavity (31). This heat insulation of the temperature measurement probe (30) prevents measurement errors by the infrared radiation thermometer (1).
摘要:
A protective cap (2) for a temperature measurement probe (30) of an infrared radiation thermometer (1) that can be introduced into a body cavity (31). The protective cap (2) includes a base body (12) shaped to fit the body cavity (31) and having a window (15) transparent to infrared radiation. The base body (12) is provided with additional structures (13; 18, 20) at least in parts to improve heat insulation between the temperature measurement probe (30) and the body cavity (31). This heat insulation of the temperature measurement probe (30) prevents measurement errors by the infrared radiation thermometer (1).
摘要:
The invention is directed to an infrared radiation thermometer, in particular an ear thermometer, having a probe head (10) whose outer diameter and/or shape is variable by an elastic arrangement (4, 14, 24). This enables the probe head to conform itself automatically to the size and/or contour of the body cavity or to be conformed manually. The thermometer is therefore equally well suited for both children and adults, although their ear canals differ in diameter.
摘要:
The invention is directed to a probe tip (10) for a radiation thermometer in which the infrared radiation to be measured is directed through a waveguide device (12) to a radiation sensor (14) that converts the incident radiation into an electrical output signal from which the target temperature is determined by means of a downstream electronic measurement circuitry. To reduce temperature gradients in the sensor (14), the invention provides for the sensor housing (16) to be thermally coupled to the waveguide device (12) via a thermal coupling arrangement (24, 28, 30), such that the waveguide device is in direct thermal contact with the side of the sensor housing (16) close to the radiation and the opposite side thereof via the thermal coupling arrangement (24, 28, 30). Preferably, the thermal coupling arrangement (24, 28, 30) which is made of a material conducting heat well has substantially its entire surface area in abutting engagement with the corresponding sides of the sensor housing (16). Further, a suitable method for reducing temperature gradients in the housing (16) of the radiation sensor (14) is described. The probe tip (10) of the present invention enables the temperature to be determined accurately also in cases where inhomogeneous heating occurs. Still further, the probe tip is small, of light weight and compact, thus enabling easy-to-handle and user-friendly radiation thermometers to be built as they are conventionally used for measuring the temperature in a person's ear canal.
摘要:
A hair removal system includes a hair removal device with a hair removal area such as a razor cartridge, a dry shaving hair removal area, an epilating area, or a laser hair removal area, each having a fluid delivery system with at least one gradient foam having a fluid and a applicator surface area open to the environment such that the fluid is passively dispensed onto a skin surface independent of gravity through said applicator surface area while a user is shaving or epilating. The fluid delivery system may be integrated via pins, glue or other locking mechanism onto the hair removal area (e.g. razor cartridge). A cap covers the gradient foam to prevent the foam from drying out. A fluid reservoir may be integrated in the hair removal system in the hair removal area or in a handle. The fluid reservoir serves to replenish fluid in the foam. The fluid may be any oil, soap, moisturizer or other suitable liquid for shave preparation or for providing post hair management related benefits. The hair removal device may be a razor, a dry shaver, an epilator or a laser (light based system).