Datasheet

Microphotonic Devices (Micro-displacement Sensor)
Z4D-B01
Be sure to read Precautions on page 24.
■ Dimensions
■ Features
Note: All units are in millimeters unless otherwise indicated.
•
•
•
•
2-175489-4
(Tyco Electronics AMP)
35.5
22
16±0.05
9.8
+0.05
Two, 2 –0.15 dia.
• Paper thickness detection
• Multi-feed detection
• Travel distance detection
5.8
Pin no. Remarks
2
1.2
8.8
11.5
Two, 3.5 dia.
(1)
(2)
(3)
(4)
5.7±0.2
5±0.2
8.2±0.2
15.7±0.2
15
10
(1.3)
(6.3)
4.8
Mounting Hole Dimensions
16±0.2
9.1±0.2
+0.1
Two, 2.3−0 dia.
2-M3
■ Applications
Two, 1 dia.
Center of
Detector
2.5
1.8
14.5
9.2
0.4
8.4±0.3
5±0.05
Mounting reference plane
Emitter axis
Easier control enabled by built-in processor circuit.
Resolution: ±10 µm.
Operating area: 6.5±1 mm.
Adapts well to changes in reflection factor using division processing.
Name
1
PLS
LED pulse light emission control signal
2
3
VCC
OUT
Power supply
Output
4
GND
Ground
Unless otherwise specified, the
tolerances are as shown below.
Dimensions
±0.3
3 mm max.
13
40±0.3
Recommended Mating Connectors:
Tyco Electronics AMP
175778-4 (crimp-type connector)
173977-4 (press-fit connector)
Tolerance
3 < mm ≤ 6
±0.375
6 < mm ≤ 10
±0.45
10 < mm ≤ 18
±0.55
18 < mm ≤ 30
±0.65
30 < mm ≤ 50
±0.8
■ Absolute Maximum Ratings (Ta = 25°C)
Item
Symbol
Supply voltage
VCC
Value
Unit
7
VDC
VDC
Condition
---
LED pulse light emission control signal
PLS
7
LED light emission pulse
TFP
100 (see note) ms
LED
Operating temperature
Topr
–10 to 65
°C
No freezing or condensation
Storage temperature
Tstg
–25 to 80
°C
---
---
Note: Refer to Pulsed Forward Current Rated Curve.
■ Electrical and Optical Characteristics (Ta = –10°C to 65°C)
Item
Symbol
Rated value
Ripple (p-p): 10 mV p-p max.
OUT
0.2 VDC to (VCC–0.3) V
(see note 1)
tr
100 µs max.
(see note 2)
PLS
3.5 VDC to VCC
---
VCC
Current consumption
Response delay time (High to Low)
Response delay time (Low to high)
Note: 1. Load impedance (between OUT-GND) is set at more than 10 kΩ.
2. The time for output voltage to rise from 10% to 90% of the full output range.
200
Condition
5 VDC ±10%
Power supply voltage
Z4D-B01 Microphotonic Devices (Micro-displacement Sensor)
■ Characteristics (Ta = –10°C to 65°C)
Object: N8.5 Munsell paper with a reflection factor of 70%.
Item
Value
Operating area (see note 1)
6.5 ±1 mm
Sensitivity variation (see note 2)
–1.4 mV/µm ±10% max.
Resolution (see note 3)
±10 µm max. (Ta = 25°C)
Linearity (see note 4)
2% F.S. (full scale) max.
Note: 1. Distance from Mounting Reference Plane to Target.
2. The sensitivity is defined as slope of the line and it represents the variation in the output voltage per unit length between different products.
3. This is the value of the electrical noise width in the output signal converted to a distance under the following conditions.
(1) A/D conversion time: 50 µs max.
(2) Ripple noise in the power supply voltage (Vcc): 10 mVp-p max.
(3) Low-pass filter time constant of the downstream signal processing circuit: 0.4 ms
(4) Distance from mounting reference plane to target: 6.5 mm
4. This is the peak-to-peak value of the deviation of the signal output from a straight line.
A linearity of 2% F.S. indicates the following value:
(1) Distance full-scale converted value: 2 mm × 0.02 = 0.04 mm (40 µm)
(2) Output voltage converted value: 1.4 mV/µm × 40 µm = 56 mV (for a sensor with a sensitivity of 1.4 mV/µm)
■ Engineering Data
Sensitivity change ratio (%)
5
Output voltage (V)
4
3
2
1
5
100
4
80
3
60
2
1
0
−1
−2
−3
−5
5.5
6.0
6.5
7.0
7.5
8.0
Pulsed Forward
Current Rated Curve
(ms)
Vcc=5V
Distance: 6.5 mm
Duty ratio (%)=
100
tFP
T
×100
tFP
40
20
0
−20
−40
T
10
Recommended
operating area
1
−60
−80
−4
0
5.0
Temperature
Characteristics (Typical)
Pulse width (tFP)
Dependency of Object on
Reflection Factor (Typical)
Output change ratio (%)
Operating Distance
Characteristics (Typical)
0
Operating distance (mm)
20
40
60
80
100
−100
−40
−20
0
20
40
60
80
0.1
100
0
Ambient temperature (°C)
Reflection factor of object (%)
20
40
60
80
Duty ratio (%)
■ Circuit Diagram
PSD
I/V
Amplifier
V1
V1+V2
OUT
A/D
port
Output
PLS
(LED optical signal)
5
0
5V
PLS
LED
D port
Timer
GND
Object
5
Sensor output
Microprocessor
(Reference)
ASIC
0
Output voltage
corresponding
to the distance
Micro-displacement Sensor
The sensor output is obtained by adding a pulse signal to the PLS terminal. An output cannot be obtained merely by adding a DC voltage to the PLS terminal.
The output will be a pulse output synchronized with the PLS signal. The output must be held with a latching or sample-and-hold circuit in the microprocessor.
■ Typical Application
Detecting Paper
Thickness in Printers
Detecting Two Sheets of
Paper
Detecting Sheet Thickness
Micro-displacement
Sensor
Paper
Micro-displacement Sensor
Roller
Shaft
Roller
Displacement
Sensor
Sheet
Z4D-B01 Microphotonic Devices (Micro-displacement Sensor)
201
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