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Oil smoke concentration transducer, oil smoke concentration detector thereof, and detection method

A technology for oil fume concentration and detection devices, which is applied in the direction of measuring devices, instruments, scientific instruments, etc., can solve the problems that the influence of ambient light cannot be eliminated, the detection of oil fume concentration is not sensitive enough, and the value of oil fume concentration is not accurate enough, so as to eliminate the detection of light receiving devices The effect of improving sensitivity and precise concentration of oil fume

Pending Publication Date: 2017-12-15
NINGBO FOTILE KITCHEN WARE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This detection method is not sensitive enough to detect the oil fume concentration, and cannot eliminate the influence of ambient light on the detection light receiving device, and the detected oil fume concentration value is not accurate enough

Method used

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  • Oil smoke concentration transducer, oil smoke concentration detector thereof, and detection method
  • Oil smoke concentration transducer, oil smoke concentration detector thereof, and detection method
  • Oil smoke concentration transducer, oil smoke concentration detector thereof, and detection method

Examples

Experimental program
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Effect test

Embodiment 1

[0029] Such as figure 2 , 3 The oil fume concentration detection device shown includes a oil fume concentration conversion module 3 connected to the detection light receiving device, a compensation light source 4 installed near the detection light receiving device, aimed at the detection light receiving device, and connected with the detection light emitting device and The power supply control unit 5 which is connected to the compensation light source and supplies power to it is connected to the soot concentration conversion module.

[0030] The detection method of the above oil fume concentration detection device is: the power supply control unit supplies power to the detection light emitting device and the compensation light source respectively in the form of high-frequency pulses, and when the detection light emission device is turned on, the compensation light source is turned off, and when the compensation light source is turned on, the detection light The transmitting ...

Embodiment 2

[0035] Such as Figure 4 The oil fume concentration detection device shown includes the oil fume concentration conversion module 3 connected to the detection light receiving device, the power supply control unit 5 connected to the detection light emitting device and powered for it, and the compensation current module connected to the oil fume concentration conversion module 6.

[0036] The detection method of the above oil fume concentration detection device is: the power supply control unit supplies power to the detection light emitting device in the form of high-frequency pulses, and the compensation current module inputs the compensation current to the oil fume concentration conversion module in the following way: when the detection light emission device is turned on, the compensation When the current is turned off and the compensation current is turned on, the detection light emitting device is turned off, and the current signal output by the oil smoke concentration conver...

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Abstract

The invention relates to an oil smoke concentration transducer, an oil smoke concentration detector thereof, and a detection method. The oil smoke concentration transducer includes a detection light emitting device capable of emitting detection light and a detection light receiving device capable of receiving detection light, and is characterized in that an included angle is formed between the detection light emitting device and the detection light receiving device after installation, that is, a straight line, where the emitting direction of the detection light emitting device is, and a straight line, where the receiving direction of the detection light receiving device is, intersect and form the included angle, and an intersection point of two straight lines is located in a smoke area. Compared with an oil smoke concentration transducer in the prior art, the oil smoke concentration transducer allows the detection light emitting device and the detection light receiving device to be installed at an included angle. The detection light receiving device extracts a light signal in an oil smoke scattering manner, and the oil smoke detection sensitivity is effectively improved. Moreover, oil smoke concentration detection is carried out in a manner of a compensation light source or a compensation electric current, so that the effect of the environment on the detection light receiving device is eliminated, the detected oil smoke concentration is relatively accurate, and the oil smoke concentration at the present can be obtained in time.

Description

technical field [0001] The invention relates to an oil fume concentration sensor, in particular to an oil fume concentration sensor, an oil fume concentration detection device and a detection method thereof. Background technique [0002] With the development of intelligence, optical sensors are used more and more in the field of household appliances. Photoelectric sensors are sensors that use photoelectric elements as detection elements. It includes a detection light emitting device and a detection light receiving device. The detection light emitting device emits detection light, and the detection light receiving device receives the detection light. After the received detection light is refracted by the substance to be measured (such as oil smoke concentration), the light intensity Changes occur, and then the light intensity signal is further converted into an electrical signal by means of a photoelectric element. The photoelectric detection method has the advantages of hig...

Claims

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Application Information

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IPC IPC(8): G01N15/06G01N21/01
CPCG01N15/06G01N21/01G01N15/075
Inventor 徐钦龙戴九松刘戈茅忠群诸永定
Owner NINGBO FOTILE KITCHEN WARE CO LTD