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參數(shù)資料
| 型號： | M186E |
| 廠商： | Electronic Theatre Controls, Inc. |
| 英文描述： | Stainless Steel 18 mm Barrel-style DC Photoelectric Sensors |
| 中文描述： | 18毫米不銹鋼桶式直流光電傳感器 |
| 文件頁數(shù)： | 4/8頁 |
| 文件大?。?/td> | 179K |
| 代理商： | M186E |
EZ-BEAMM18 Series Fixed-Field Sensor Setup Tips
EZ-BEAM M18 Series Sensors
page
4
Banner Engineering Corp.
Minneapolis, U.S.A.
Website: http://www.baneng.com Tel: 888.373.6767
General
For highest sensitivity, the sensor-to-object distance should be such that the object
will be sensed at or near the point of maximum excess gain (see page 3). The
background must be placed beyond the cutoff distance. Following these two
guidelines makes it possible to detect objects of low reflectivity, even against close-in
reflective backgrounds.
In the drawings and discussion on this page, the letters E, R1, and R2 identify how the
sensor’s three optical elements (Emitter “E”, Near Detector “R1”, and Far Detector
“R2”) line up across the face of the sensor. In Figures 2, 3, and 4, these elements
align vertically; in Figure 5, they align horizontally. Note how the position of the tabs
on the front of the sensor helps to define the sensing axis of the sensor (Figure 1,
right). The sensing axis becomes important in situations like those illustrated in
Figures 4 and 5 below.
Background reflectivity and placement
Avoid mirror-like backgrounds that produce specular reflections. False sensor
response will occur if a background surface reflects the sensor’s light more strongly
to the near detector (R1) than to the far detector (R2). The result is a false ON
condition (Figure 2). Use of a diffusely-reflective (matte) background will cure this
problem. Other possible solutions are to either angle the sensor or angle the
background (in any plane) so that the background does not reflect back to the sensor
(see Figure 3).
An object beyond the cutoff distance, either moving or stationary (and when posi-
tioned as shown in Figure 4), can cause unwanted triggering of the sensor because it
reflects more light to the near detector than to the far detector. Remedy the problem
easily by rotating the sensor 90° (Figure 5) to align the sensing axis horizontally. The
object then reflects the R1 and R2 fields equally, resulting in no false triggering. A
better solution, if possible, may be to reposition the object or the sensor.
Unwanted triggering of the sensor from an object beyond the cutoff can also be
caused by attempting to sense a small object moving perpendicular to the sensor face,
or by an object moving through the off-center position shown in Figure 4. Making the
object larger, centering the sensor relative to the object, or rotating the sensor to place
the sensing axis perpendicular to the longer dimension of the object (Figure 5) will
solve the problem.
Figure 1. Sensing axis
As a general rule, the most reliable sensing of
an object approaching from the side occurs
when the line of approach is parallel to the
sensing axis.
Sensing
Axis
R2
R1
E
E
R2
R1
E
R1 = Near Detector
R2 = Far Detector
= Emitter
M18FF Sensor
Core of
Emitted
Beam
Cutoff
Distance
Reflective
Background
Strong
Direct
Reflection
to R1
Fixed Sensing
Field
Figure 2. Reflective background
–
problem
E
R2
R1
E
R1 = Near Detector
R2 = Far Detector
= Emitter
M18FF Sensor
Core of
Emitted
Beam
Cutoff
Distance
Reflective
Background
Strong
Direct
Reflection
Away From
Sensor
Fixed Sensing
Field
Figure 3. Reflective background
–
solution
E
R2
R1
E
R1 = Near Detector
R2 = Far Detector
= Emitter
Area of R1 Response
Area of R2 Response
Area of R1 and R2 Response
Reflective
Background or
Moving Object
M18FF Sensor
Cutoff
Distance
Fixed Sensing
Field
R1 Response
R2 Response
Figure 4. Object beyond cutoff
–
problem
E, R2, R1
E
R1 = Near Detector
R2 = Far Detector
= Emitter
Area of R1 and R2 Response
M18FF Sensor
Reflective
Background
or Moving
Object
Cutoff
Distance
Fixed Sensing
Field
Figure 5. Object beyond cutoff
–
solution
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PDF描述 |
|---|---|
| M186EQ | Stainless Steel 18 mm Barrel-style DC Photoelectric Sensors |
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| M18SN6DL | Stainless Steel 18 mm Barrel-style DC Photoelectric Sensors |
| M18SN6DLQ | Stainless Steel 18 mm Barrel-style DC Photoelectric Sensors |
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相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| M186EQ | 制造商:Banner Engineering 功能描述:EZ-BEAM M18 Series: Emitter, Range: 20 m, Input: 10-30V dc, Output: Not applicab |
| M18-6FB/SK | 制造商:3M Electronic Products Division 功能描述: |
| M18-6FB/SX | 功能描述:端子 BLOCK FORK NON-INS BTL BS-31-6S-W RoHS:否 制造商:AVX 產(chǎn)品:Junction Box - Wire to Wire 系列:9826 線規(guī):26-18 接線柱/接頭大小: 絕緣: 顏色:Red 型式:Female 觸點電鍍:Tin over Nickel 觸點材料:Beryllium Copper, Phosphor Bronze 端接類型:Crimp |
| M18-6FB/SX-BOTTLE | 功能描述:CONN FORK BLOCK UNINSUL #6 100PC RoHS:是 類別:連接器，互連式 >> 端子 - 鏟形 系列:Scotchlok™ 標準包裝:1 系列:Scotchlok™ 端子類型:彈簧，壓接式 接線柱/接片尺寸:10 接線柱 寬度 - 外邊:0.320"（8.13mm） 長度 - 總體:1.030"（26.16mm） 安裝類型:自由懸掛 端子:壓接 線規(guī):10-12 AWG 絕緣體:絕緣 特點:- 顏色:黃 包裝:散裝 觸點表面涂層:錫 觸點材料:銅，ETP 絕緣體直徑:0.250"（6.35mm） 材料 - 絕緣體:聚酰胺（PA），尼龍 長度 - 環(huán)心道末端:0.280"（7.11mm） 長度 - 末端:0.550"（13.97mm） 內(nèi)部舌簧打開:- 相關產(chǎn)品:TR-490-ND - HAND CRIMP TOOL RACHET 10-22 AWGTH-450-ND - TOOL HAND CRIMP 6-26AWGTR-482-ND - TOOL RATCHETING 10-22AWG CRIMP920099-R-ND - TOOL 10-22AWG SCOTCHLOK CRIMP 其它名稱:000511285879115112858791180611464373 |
| M18-6FBX | 功能描述:端子 NON INS BLOCK FORK BS-31-6-W RoHS:否 制造商:AVX 產(chǎn)品:Junction Box - Wire to Wire 系列:9826 線規(guī):26-18 接線柱/接頭大小: 絕緣: 顏色:Red 型式:Female 觸點電鍍:Tin over Nickel 觸點材料:Beryllium Copper, Phosphor Bronze 端接類型:Crimp |
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