Lamp luminance detecting device
A technology for illuminance detection and lighting, which is applied to measuring circuits, using electrical radiation detectors for photometry, etc. It can solve problems such as high price and achieve the effects of good reliability, compact circuit design and small size.
Inactive Publication Date: 2013-10-30
OCEANKING DONGGUAN LIGHTING TECH +2
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Problems solved by technology
When testing the illuminance of lamps, a special illuminance meter is usually used for detection, but this kind of illuminance meter is expensive, ranging from several thousand yuan
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[0012] A lamp illuminance detection device of the present invention, its circuit includes a phototransistor Q2, a light switch Q1, an ammeter V1, a first adjustable resistor R1, a second adjustable resistor R2, and a DC power supply BT1; wherein,
[0013] The ammeter V1 is connected in series between the input end of the light-on tube Q1 and the positive pole of the DC power supply BT1; the second adjustable resistor R2 is connected in series between the output end of the light-on tube Q1 and the negative pole of the DC power supply BT1; the control terminal of the light-on tube Q1 is connected to the photosensitive The input terminal of the triode Q1 is electrically connected, and the connection point is electrically connected to the positive pole of the DC power supply BT1 through the first adjustable resistor R1 connected in series; the output terminal of the phototransistor Q1 is electrically connected to the negative pole of the DC power supply BT1.
[0014] In the lamp il...
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The invention discloses a lamp luminance detecting device. A circuit of the lamp luminance detecting device comprises a phototransistor, a switch tube, an ampere meter, a first adjustable resistor, a second adjustable resistor and a direct-current power source. The ampere meter is connected between the input end of the switch tube and the positive electrode of the direct-current power source in series, the second adjustable resistor is connected between the output end of the switch tube and the negative electrode of the direct-current power source in series, the control end of the switch tube is electrically connected with the input end of the phototransistor, the first adjustable resistor connected with a connecting point in series is electrically connected with the positive electrode of the direct-current power source, and the output end of the phototransistor is electrically connected with the negative electrode of the direct-current power source. The lamp luminance detecting device has the advantages of being small, exquisite and simple in circuit design, good in reliability and the like, is composed of only several small components, is quite small in size, can be carried with people and is low in cost. The cost of the lamp luminance detecting device is only less than ten Yuan.
Description
technical field [0001] The invention relates to a device for detecting illuminance of a lamp. Background technique [0002] Before the luminaire leaves the factory, it is generally necessary to check its illuminance to know whether the illuminance of the luminaire meets the specified requirements or customer requirements. When testing the illuminance of lamps, a special illuminance meter is usually used for detection, but this kind of illuminance meter is expensive, ranging from several thousand yuan. Contents of the invention [0003] The problem to be solved by the present invention is to provide a lamp illuminance detection device with simple design and low cost. [0004] Technical scheme of the present invention is as follows: [0005] A lamp illuminance detection device, the circuit of which includes a phototransistor Q2, a light switch Q1, an ammeter V1, a first adjustable resistor R1, a second adjustable resistor R2, and a DC power supply BT1; wherein, [0006] T...
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IPC IPC(8): G01J1/44
Inventor 周明杰郑平
Owner OCEANKING DONGGUAN LIGHTING TECH