Photoelectric sensor

A technology of photoelectric sensor and light receiving quantity, which is applied in the sensor field

Active Publication Date: 2009-01-21
ORMON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0005] However, in the structure shown in this patent document 1, the threshold value displayed on the display part is fine-tuned by buttons or switches, and based on the fine-tuned threshold value result To display the margin of the detection object, so the above method is not a method for the user to directly control the margin that the user wants to obtain as a result of the feature value of the detection object

Method used

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Embodiment Construction

[0028] Embodiments of the present invention will be described in detail with reference to the drawings. In addition, the same or corresponding parts in the drawings are denoted by the same reference numerals, and descriptions thereof will not be repeated.

[0029] figure 1 It is a perspective view of the appearance of the photoelectric sensor according to the embodiment of the present invention with the upper cover opened.

[0030] refer to figure 1 , The photoelectric sensor 1 according to the embodiment of the present invention has a multiple (Multiple) type plastic casing 13 . A light-emitting optical fiber 14 and a light-receiving optical fiber 15 are inserted into the front portion of the housing 13 and fixed by operating the fixing lever 2 . The cable 8 is led out from the rear of the casing 13 .

[0031] The illustrated cable 8 has a core wire 18 for ground (GND), a core wire 17 for power supply (Vcc), and a core wire 16 for detection output.

[0032] The casing 13...

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PUM

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Abstract

The invention provides a photoelectric sensor with higher convenience to user capable of detecting the characteristic quantities of the detected object. The function of the sensor comprises: judging whether a key input is exist (step S0); while an input operation of the key (4) is detected, holding the margin display (margin display holding) for a while (step S1); judging whether the improved key of the first operation key (4) is kept in pressed for a preset long time (step S2); calculating the target margin or expected margin according to the key input (calculating target margin) (step S5); implementing a calculating processing to the threshold relative to the light income or achieving the calculated target margin value; and setting the calculated threshold and updating the displayed target for expected margin (step S11).

Description

technical field [0001] It relates to a sensor that detects the physical quantity of the detection object to detect the characteristic value of the detection object, and particularly relates to a sensor that projects light on the detection object and receives its reflected light or transmitted light, thereby detecting the detection object. Photoelectric sensor of characteristic quantity. Background technique [0002] The photoelectric sensor projects light such as visible rays and infrared rays from the light projecting part as signal light, and the light receiving part detects the light reflected by the object to be detected or the light transmitted through the object to be detected, thereby obtaining an output signal representing the characteristic quantity of the object to be detected . From this point of view, photoelectric sensors can detect objects without contact and can also be used in various fields where colors can be recognized. In addition, in recent years, fibe...

Claims

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Application Information

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IPC IPC(8): G01D5/34G01J1/42
Inventor 权藤清彦寺村笃
Owner ORMON CORP
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