Abstract:
A detector comprises a housing (1), a pyroelectric array sensor (2) mounted within the housing, a heater (4) associated with the pyroelectric array sensor, and control means (6) for varying the power supplied to the heater to control the temperature of the pyroelectric array sensor relative to the ambient temperature in order to minimise the rate of change of temperature of the pyroelectric array sensor and to keep a predetermined difference between the temperature of the pyroelectric array sensor and the ambient temperature.
Abstract:
An ear-type thermometer which measures body temperature using a temperature detection element 21 that detects ambient temperature and an infrared detection element 22 that detects infrared radiation from a measurement site within the aural cavity, the 2 elements housed in a probe 3, wherein the ear-type thermometer comprises a probe cover 10 which can be detachably provided with the probe, a detection switch 60 which detects that the probe cover is attached or detached to the probe, and two temperature conversion coefficients 52a and 52b which corrects body temperature based on the detection result from the two detection elements. Further, the thermometer comprises a detection switch 60 which detects that the probe cover is attached or detached to and from the probe, a temperature conversion coefficient 52a which corrects body temperature based on detection results from the two detection elements, a control unit 50 which determines whether the probe cover has exceeded the usage count limit or not using an actual usage count, a speaker 12 or a liquid crystal display unit which alerts need to replace the probe cover when the usage count limit has been exceeded.
Abstract:
A first thermosensitive element including a temperature detecting unit that outputs a voltage corresponding to a temperature to which the unit rises from ambient temperature (temperature of surrounding environment) due to incident infrared, and a second thermosensitive element including a temperature detecting unit that outputs a voltage based on ambient temperature are formed above/on a silicon substrate. The temperature detecting unit of the first thermosensitive element is thermally insulated from the silicon substrate by a clearance (space). The temperature detecting unit of the second thermosensitive element is formed on a first sacrifice layer made of deposited diamond like carbon, and thermally connected to the silicon substrate by the first sacrifice layer. The infrared sensor detects an amount of incident infrared based on the difference between output voltages of the first and second thermosensitive elements.
Abstract:
A component for detecting electromagnetic radiation comprises: a housing defining a chamber placed under a vacuum or underpressure, one of the faces of the housing including a window which is transparent to the radiation to be detected and the chamber including at least one detector which is used to detect the radiation in question and is arranged inside said chamber essentially against the transparent window, a pump for pumping the residual gases or getter in order to maintain the vacuum or underpressure in the chamber at an acceptable level, and a thermal stabilisation device for ensuring regulation of temperature of the detector(s). The thermal stabilisation device consists of a heating resistive element which is integrated into the mass of one of the walls defining the housing.
Abstract:
A probe cover having a portion that operates as a blackbody. The blackbody is a combination of a stretchable film and a metal. The blackbody rapidly heats to equilibrium with the body tissue. An infrared thermometer using the probe cover may view the blackbody to acquire the temperature of the body tissue temperature being measured.
Abstract:
A first thermistor 8 and a second thermistor 9 are arranged forwardly and rearwardly of a thermopile sensor 5. A thermopile chip 55 is arranged and interposed between the first thermistor 8 and an integrated thermistor 57. A sensor cover is mounted in contact with front and side portions of a can portion 59 of a thermopile casing 56. A temperature or a radiant quantity of infrared rays on the front portion of the can portion is estimated from a temperature change of the integrated thermistor per second.
Abstract:
The invention provides a sensor including a first sensor element formed in a first substrate and at least one optical element formed in a second substrate, the first and second substrates being configured relative to one another such that the second substrate forms a cap over the first sensor element. The cap includes a diffractive optical element and an aperture stop which collectively determine the wavelength of incident radiation that is allowed through the cap and onto the at least one optical element.
Abstract:
A method and apparatus for measuring the core temperature of an animal or human. Thermal black body emissions from the eyeball are detected, at one or more wavelengths selected on the basis of various factors, including the ability of that wavelength to reach the interior of the eyeball. An illumination marker shines a spot of light on the eyeball, such that the spot corresponds to the area from which emissions are being detected.
Abstract:
The invention provides a thermal sensor having a first and second temperature sensing elements each being formed on a thermally isolated table in a first substrate.
Abstract:
An IR camera for recording and presenting a thermal image of an object comprises optical receiving means for focusing infra-red radiation received from the object onto a focal plane array and processing means for receiving and processing the data from the focal plane array to form a thermal image, presentation means for presenting the thermal image and storage means for storing the thermal image. According to the invention the IR camera further comprises receiving means for receiving from at least one humidity sensor arranged to provide humidity information, information about the humidity in at least one measuring point on the object, and forwarding said humidity information to the processing means, said processing means being arranged to include said humidity information in the thermal image. In this way the camera can directly identify any points on the object where there is risk for damp.