The transmitter is aimed at the target emitting beam, and the emitted beam is generally derived from a semiconductor light source, a light emitting diode (LED), a laser diode, and an infrared emitting diode. The beam is emitted uninterrupted or the pulse width is varied. The receiver is composed of a photodiode, a phototransistor and a photocell. In front of the receiver, optical components such as lenses and apertures are mounted. Behind it is a detection circuit that filters out the valid signal and applies the signal.
In addition, the structural components of the photoelectric switch also include a launching plate and an optical fiber.
The triangular reflector is a structurally sound launcher. It consists of a small triangular pyramidal reflective material that enables the beam to be accurately returned from the reflector, which is practical. It can change the emission angle in the range from 0 to 25 with the optical axis, so that the beam returns from almost one emission line, after reflection, or from this reflection line.
Classification and working methods
(1) Slot-type photosensor A slot-shaped photoelectric is mounted on a side of a slot in which a light emitter and a receiver are mounted face to face. The illuminator emits infrared or visible light, and the optical receiver can receive light in an unobstructed condition. However, when the object to be detected passes through the slot, the light is blocked and the photoelectric switch operates. A switch control signal is output to cut or turn on the load current to complete a control action. The detection distance of the slot switch is usually only a few centimeters due to the limitation of the overall structure.
(2) If the illuminator and the illuminator are separated from the on-beam photoelectric sensor, the detection distance can be increased. A photoelectric switch composed of an illuminator and a light collector is called an off-beam split type photoelectric switch, and is simply referred to as an on-beam type photoelectric switch. Its detection range can be several meters or even tens of meters. In use, the illuminator and the light receiver are respectively mounted on both sides of the path of the detection object, and when the detection object passes, the light path is blocked, and the light receiver outputs a switch control signal.
(3) Reflective plate type photoelectric switch The illuminator and the light collector are installed in the same device, and a reflector is installed in front of it, and the photoelectric control function is performed by the reflection principle, which is called reflection plate reflection type (or mirror reflection type). Photoelectric switch. Under normal circumstances, the light emitted by the illuminator is reflected by the reflector and received by the light receiver; once the light path is blocked by the object, and the light receiver receives no light, the photoelectric switch operates to output a switch control signal.
(4) Diffuse reflective photoelectric switch. Its detector head is also equipped with an illuminator and a light collector, but there is no reflector in front. Under normal circumstances, the light collector emitted by the illuminator cannot be found. When the detection object passes, the light is blocked, and the light is partially reflected back, and the light receiver receives the light signal and outputs a switching signal.
Laptop power adapter charger for Dell:
| Laptop Model | Adapter Output |
| Latitude E5400 E5410 E5500 E5510 | 19.5v 4.62a, 7450 |
| Studio XPS 16 (1645)1640 1645 1647 | 19.5v 4.62a, 7450 |
| Studio XPS M1645 M1647 | 19.5v 4.62a, 7450 |
| XPS 14 15 17 L501x L502x L702x L702x | 19.5v 4.62a, 7450 |
| Inspiron 1464 1564 1764 | 19.5v 4.62a, 7450 |
| Inspiron 1525 1440 1526 | 19.5v 3.34a, 7450 |
| Precision M4600 M6600 | 19.5v 6.7a, 7450 |
| Inspiron N5050 N4010 N5110 | 19.5v 3.34a, 7450 |
| Inspiron 14Z-N411Z 13Z N311Z | 19.5v 4.62a, 7450 |
| Inspiron 1545 | 19.5v 3.34a, 7450 |
| Latitude E5420 E5530 E5430 E6420 | 19.5v 4.62a, 7450 |
| Inspiron 1440 1525 1526 1545 1750 | 19.5v 3.34a, Octagon tip |
| Inspiron 1300 B120 B130 | 19v 3.16a/3.42, 5525 |
| Inspiron 1525 1526 1545 | 19.5v 3.34a, 7450 |
| Studio 1440 1440n 1440z 14z 14zn | 19.5v 3.34a, 7450 |
| Latitude E4300 E4310 | 19.5v 4.62a, 7450 |
| Inspiron 13Z 13ZD 13ZR M301 M301z M301ZD M301ZR N301 | 19.5v 3.34a, 7450 |
| Inspiron N301Z N301ZD N301ZR | 19.5v 3.34a, 7450 |
| Studio 1535 1536 1555 1557 1558 | 19.5v 4.62a, 7450 |
| Latitude E5420 E5520 E6430 E6530 E6420 E6520 | 19.5v 4.62a, 7450 |
| Inspiron Mini 10 10v 1010 1010n 1010v 1011 1011n 1011v | 19v 1.58a, 5517 |
| Inspiron 14V 14VR M4010 N4020 N4030 | 19.5v 4.62a, 7450 |
| Inspiron N4110 N5110 N7110 M5010 | 19.5v 3.34a, 7450 |
| 630M 640M E1405 | 19.5v 4.62a, 7450 |
| Inspiron 15-3521 17-3721 | 19.5v 3.34a, 7450 |
| Latitude 120L | 19.5v 3.34a, 7450 |
| Vostro 1710 1710n 1720 1720n | 19.5v 4.62a, 7450 |
| Vostro 1500 1700 Inspiron 1520 1521 1720 | 19.5v 4.62a, 7450 |
| Vostro 1400 1420 PP26L | 19.5v 3.34a, 7450 |
| Latitude D410 | 19.5v 3.34a, 7450 |
| Inspiron 1120, 1121, M101 | 19.5v 3.34a, 7450 |
| Inspiron Mini 1012 1018 | 19v 1.58a, 5517 |
Our service:
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