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US 6,742,927 B2Granted
Infrared thermometer
AssigneeLa Tecnica S.r.l.
InventorFrancesco Bellifemine
Life of this patent
Estimating the term…
Abstract
The invention relates to an infrared thermometer wherein control means signal or determine a correct positioning of the intensity transducer tasked with measuring the infrared radiation emitted by the patient whose temperature needs to be known.
Claims11
Infrared thermometer (1) comprising:
- at least one intensity transducer (3), set to detect an infrared radiation emitted by an area to be measured of a patient and to generate at its output a corresponding measuring signal;
- a processing unit (4) operatively associated with said transducer (3) to receive the measuring signal and compute a corresponding temperature of the area to be measured;
- control means to define a correct positioning condition of said transducer (3) at a pre-set distance (D) from said area to be measured;
- wherein said control means comprises:
- at least one emitter (10) of an undulatory signal (11) meant to be incident upon the area to be measured to create a corresponding return undulatory signal (12);
- at least one receiver (13) set to detect the return signal (12);
- the processing unit (4) being set to compute a time delay between the return signal (12) and
- the incident signal (11) to determine an actual distance between the intensity transducer (3) and the area to be measured;
- and
- signaling means commanded by said processing unit (4) to signal to a user the substantial coincidence of the actual distance with said pre-set distance (D) and hence the reaching of the condition of correct positioning of said intensity transducer (3).
7 more elements
Infrared thermometer (1) comprising:
- at least one intensity transducer (3), set to detect an infrared radiation emitted by an area to be measured of a patient and to generate at its output a corresponding measuring signal;
- a processing unit (4) operatively associated with said transducer (3) to receive the measuring signal and compute a corresponding temperature of the area to be measured;
- control means to define a correct positioning condition of said transducer (3) at a pre-set distance (D) from said area to be measured;
- wherein said control means comprises:
- at least one emitter (10) of an undulatory signal (11) meant to be incident upon the area to be measured to create a corresponding return undulatory signal (12);
- at least one receiver (13) set to detect the return signal (12);
- the processing unit (4) being set to compute a time delay between the return signal (12) and the incident signal (11) to determine an actual distance between the intensity transducer (3) and the area to be measured;
- and
- said processing unit (4) performs the computation of the temperature a plurality of consecutive times obtaining a plurality of values and assigning as the actual value of the temperature of the measured area the mean of the computed temperature values.
6 more elements
Infrared thermometer (1) comprising:
- at least one intensity transducer (3), set to detect an infrared radiation emitted by an area to be measured of a patient and to generate at its output a corresponding measuring signal;
- a processing unit (4) operatively associated with said transducer (3) to receive the measuring signal and compute a corresponding temperature of the area to be measured;
- control means to define a correct positioning condition of said transducer (3) at a pre-set distance (D) from said area to be measured;
- wherein said control means comprises:
- at least one emitter (10) of an undulatory signal (11) meant to be incident upon the area to be measured to create a corresponding return undulatory signal (12);
- at least one receiver (13) set to detect the return signal (12);
- the processing unit (4) being set to compute a time delay between the return signal (12) and
- the incident signal (11) to determine an actual distance between the intensity transducer (3) and the area to be measured;
- and
- said processing unit (4) assigns a pre-set differential defining an interval (D-Δ, D Δ) the actual distance being deemed to correspond with said pre-set distance (D) when the actual falls within the interval.
7 more elements
Dependencies are inferred from the claim text.