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Non-contact infrared thermometer and its distance control method

An infrared thermometer and non-contact technology, applied in the field of temperature measurement, can solve the problems of difficult promotion and application, complex structure of the thermometer, many additional components, etc., and achieve the effects of easy industrialized mass production, simple structure and low cost.

Inactive Publication Date: 2008-05-07
简毅 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the positioning using light wave technology, the light beam or parallel light path emitted by the light source passes through the optical element, and the receiving element is also received after passing through the optical element, so that the structure of the thermometer is complex, with many additional components, large volume, high cost, and difficulty in popularization and application. larger

Method used

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  • Non-contact infrared thermometer and its distance control method
  • Non-contact infrared thermometer and its distance control method
  • Non-contact infrared thermometer and its distance control method

Examples

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Embodiment approach 1

[0023] Such as Figure 1~4 As shown, a non-contact infrared thermometer and a fixed distance control method thereof, the thermometer mainly includes an infrared radiation sensor 10, a fixed distance control device, a processing unit and a display device. The fixed distance control device mainly includes a light-emitting mechanism 2 and an observation mechanism 3, etc. The light beam emitted by the light-emitting mechanism and the observation light path of the observation mechanism must intersect in a specific area at a preset distance in front of the thermometer probe. The display device mainly includes a display circuit and LCD screen 6 etc. The housing 9 of this embodiment is a handheld type with a protruding head and an elongated lower end. The protruding head of the probe 11 is tapered. The infrared sensor 10 and the fixed distance control device are installed in the probe 11. The processing unit and the display circuit are installed in the probe 11. Set in the housing 9, the L...

Embodiment approach 2

[0025] Such as Figure 5 As shown, the main feature of the non-contact infrared thermometer and its fixed distance control method is that the observation mechanism of the fixed distance control device adopts a bent tube type and an optical element (such as a reflector) is added to it to change the observation mechanism of the observation mechanism. The light path makes the light path of the light emitting mechanism emit the light beam and the observation light path of the bent tube observation mechanism intersect in the specific area between C and B near the preset distance L in front of the probe 11, thereby realizing fixed distance control. The rest is the same as the first embodiment.

Embodiment approach 3

[0027] Such as Figure 6 As shown, the main feature of the non-contact infrared thermometer and its fixed distance control method is that the observation mechanism of the fixed distance control device adopts an optical fiber type to change the angle and position of the observation light path of the observation mechanism, so that the light path of the light emitting mechanism emits the light beam and The observation optical path of the optical fiber observation mechanism intersects in a specific area between C and B near the preset distance L in front of the probe 11, thereby realizing fixed distance control. The rest is the same as the first embodiment.

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Abstract

The invention is a noncontacting infrared temperature meter and the spacing control method. The thermometer includes infrared radiation sensor, spacing control device, processing unit and displaying device, the spacing control device mainly includes illuminant mechanism and observing mechanism, they are connected through circuit or wire. The method is: the beam transmitted by the illuminant mechanism and the observing path of the observing mechanism are crossed in the special region of the preset distance, only when the measured target is in the special region, the light spot or image projected to the measured object can be observed through the observation mechanism.

Description

Technical field [0001] The invention belongs to the technical field of temperature measurement, and particularly relates to an infrared temperature measurement device and a distance control method thereof. Background technique [0002] At present, glass mercury thermometers are widely used in my country to measure the body temperature of humans or animals. Although the glass mercury thermometer is cheap, it takes a long time to measure temperature, is inconvenient to read, and is not very safe to use. Once it breaks, it will be harmful to people, animals and the environment. Now there are also electronic thermometers. Although their readings are intuitive, they are mainly used to measure temperature through temperature sensing elements such as thermistors. The thermistor and its protective cover are slow to reach thermal equilibrium, leading to long measurement times and other shortcomings. [0003] In recent years, infrared thermometers that are convenient, fast and accurate for...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J5/08
Inventor 简毅洪雪飞程洪
Owner 简毅
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