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Edge Position Control Systems
- High Functionality EPC/CPC Amplifier SGA3100
- Inductive Autowide Sensors AWI Series
- PHOTOHEAD PH50, PH51
- Linear Sensor LSF4096
- Analog Position Transmitter FW80
- Modular Strip Guide system controller MGC1000
- Electromagnetic CPC Sensor Model:EMW
- Capacitance Autowide AWC Series
- Electromagnetic Guidance NS-CPC Sensor
- AUTOWIDE™AWL
- PHOTOHEAD PH30, PH31
- Strip Guide Amplifier SGA3000
- PILOTJET
- Power Guide PG300, 500, 800
- Analog Position Transmitter FW22, FW31
- High-precision Position Transmitter GYKM-LT
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Measuring Systems
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Actuators
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Movie
PHOTOHEAD PH30, PH31
Overview
The Photohead is the sensor of an EPC (Edge Position Control) system. It uses optical means to detect the edge of a strip (web).
The sensor signal is transmitted to an amplifier, and the amplified output signal is forwarded to a hydraulic jet pipe type controller or a servo valve, controlling the strip edge, so that it remains at the determined position.
If the operating environment of the Photohead is exposed to airborne dust, or if there is the risk that oil or water droplets etc. could fall onto the Photohead projector lens, use a sensor with the air purge specification.
Feature
The Photohead utilizes parallel light flux and detects the edge position of a strip (web) electrically.
Examples of applications of the Photohead system
Applications of Photohead EPC System
Pay-off reel system
Steering roller system (Intermediary guide roller)
Specifications
| Power supply | Adjust the voltage supplied from the amplifier to: PH30 : 6V DC PH31 : 12V DC |
|---|---|
| Output Voltage | Voltage proportional to variation of light intensity at the silicon light sensor element (mV). |
| Sensitivity | Detects positional variations of 0.1mm in a strip (opaque web). |
| Compressed air consumption for air purge specification | 400NL/min (at 0.05MPa) |
| Allowable back pressure | 0.05MPa |
| Paint color | Silver |
| Ambient temperature | -10 to +60℃ |
| Range of measurement | 20mm |
| Body material | Aluminum alloy castion |
| Light source: | 12V tungsten bulb |
| Mass | PH30 : 3kg PH31 : See below |
Mass of PH31
| Model | V | W | X | Y | Z | MASS(kg) |
|---|---|---|---|---|---|---|
| PH31-3 | 300 | 200 | 270 | 540 | 554 | 31 |
| PH31-4 | 400 | 200 | 320 | 640 | 654 | 33 |
| PH31-5 | 500 | 200 | 370 | 740 | 754 | 36 |
| PH31-6 | 600 | 200 | 420 | 840 | 854 | 38 |
| PH31-7 | 700 | 400 | 470 | 940 | 954 | 40 |
| PH31-8 | 800 | 400 | 520 | 1040 | 1054 | 42 |
| PH31-9 | 900 | 400 | 570 | 1140 | 1154 | 44 |
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