Position Sensor C7339 DATA SHEET (For Laser Beam Alignment) FEATURES The C7339 Position Sensor is an opto-electric positionsensing unit which measures the position of a single point of light spot-focused onto the sensor head. The use of hybrid circuitry allows for a compact, lightweight design and a divided configuration with a light, compact sensor head and a controller equipped with a light level indicator and data displays for ease of operation. The measured position is displayed digitally in terms of X- and Y-coordinate voltages on the front panel of the controller and may be simultaneously output to a recorder. The C7339 does not possess a background-light cancellation function and is suited for use in locations where the signal light is distinct from the background such as in the detection of laser beams. • Quick Response The response time of less than 20µs enables accurate measurement of the spot, even while it is moving at high speeds. • Stable Measurement The position data (X-Y coordinate voltages) of a light spot is obtained without being affected by signal current fluctuations from the PSD, enabling accurate position measurement regardless of fluctuations in the light intensity. • Broad Spectral Response The C7339 has a broad spectral range, from 300 to 1100 nm, enabling the detection of a variety of light sources, including lasers. • High Resolution The PSD employed in the sensor head is of the non-discrete type, which, contrary to a discrete-type sensor, has no insensitive area. This enables continuous measurement at a high resolution of 1/5000 (when using a recorder). • Light Level Indicator The input light level is indicated in digits on the front panel of the control unit (0.00 to 10.0) so as to make it easy to adjust the lens iris and select an ND filter. SYSTEM CONFIGURATION EXAMPLE Standard configuration Computer Controller Sensor head HAMAMATSU POWER X DATA 1.11 Laser beam C7339 POSITION SENSOR SYSTEM LEVEL Y DATA 1.11 HIGH LOW 5.5 Analog OUT POWER HAMAMATSU SENSOR HEAD AD convertor Power Macintosh 6100/60 Laser beam alignment system Analog OUT X-Y Recorder Oscilloscope Power PC OTHER APPLICATIONS • Surface Flatness Measurement • Solar Tracking Systems SPECIFICATIONS Non-discrete position-sensitive detector (Hamamatsu S1880-03) Detector CONFIGURATION Sensor head (C7339-01) ....................... 1 Controller (C7339-0X*) .......................... 1 AC cable (2m) ........................................ 1 Head connecting cable (5m) .................. 1 Signal cables (BNC-BNC, 3m) .............. 2 Fuses (1A) ............................................. 3 Line voltage * X = 2 ......................... 100V 3 .......................... 117V 4 .......................... 220V 5 .......................... 240V Useful sensitive area (Fig.1) 10 × 10mm Lens mount C mount Output voltage: X-axis – 5 to + 5V Y-axis – 5 to + 5V Output impedance 500Ω ± 10% Response speed (Fig.2) Within 20µs Recommended measurement light level Light level (∑) = 8 (Displayed on a level indicator) Position detection error Zone A (refer to figure below) ±1.0%, Zone B ±2.0% Error due to light intensity variations ±1% (Light level (∑) = 8→4) Resolution (when using a recorder) 1/5000 Jitter ±1.5/1000 Drift ±0.5%/day (after the first 30 minutes) Operating temperature 0 to +40°C Storage temperature –10 to +50°C OPTIONAL Operating/storage humidity Less than 90% (with no condensation) Metal interference filters Filter adapter Line voltage 100/117/220/240VAC ±10%, 50/60Hz Power consumption Approx. 30VA 10mm 10mm ZONE A 0 20µs 100HZ 2kHZ 20µs FALL TIME RISE TIME 5mm -3dB 10% OUTPUT VOLTAGE Fig.1 Useful Sensitive Area and Zones A and B RESPONSE FREQUENCY 90% OUTPUT INPUT LIGHT ZONE B Fig.2 Rise and fall time of the output voltage when a pulsed light is applied to the center of the sensitive area. The rise time is the period of time required for the output voltage to rise from 10% to 90% of its full level. The fall time is the period required for the output voltage to return from 90% to 10%. Fig.3 Response frequency of the output voltage when a spot light is moved right and left repeatedly while it is being applied to the sensitive area. OPTIMUM INPUT LASER POWER Laser He-Ne Laser Ar Laser Wavelength 632nm 514nm When light with the value on the table at the left is input, "8" appears on the display indicating the volume of incident light. If strong laser light is used, an ND filter or similar means should be used to reduce the volume of laser light to the optimum volume before beginning measurement. Input Laser Power Approx. 23µW Approx. 27µW DIMENTIONAL OUTLINE (UNIT:mm) 40 • Controller (Weight: Approx. 3.87kg) 64 HAMAMATSU POWER X DATA 1.11 74 C7339 POSITION SENSOR SYSTEM LINE LEVEL Y DATA 1.11 HIGH LOW 5.5 POWER SIGNAL OUT X DATA 69.6 • Sensor head (Weight: Approx. 140g) Y DATA 42 SENSOR HEAD HAMAMATSU 227 232 • Subject to local technical requirements and regulations, availability of products included in this promotional material may vary. Please consult with our sales office. • Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions. Specifications and external appearance are subject to change without notice. © 1999 Hamamatsu Photonics K.K. ISO 9001/ISO 13485 EN 46001 Certificate: 09 105 79045 Homepage Address http://www.hamamatsu.com HAMAMATSU PHOTONICS K.K., Systems Division 812 Joko-cho, Hamamatsu City, 431-3196, Japan, Telephone: (81)53-431-0124, Fax: (81)53-435-1574, E-mail:[email protected] U.S.A. and Canada: Hamamatsu Photonic Systems: 360 Foothill Road, Bridgewater, N.J. 08807-0910, U.S.A., Telephone: (1)908-231-1116, Fax: (1)908-231-0852 Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: (49)8152-375-0, Fax: (49)8152-2658 France: Hamamatsu Photonics France S.A.R.L.: 8, Rue du Saule Trapu, Parc du Moulin de Massy, 91882 Massy Cedex, France, Telephone: (33)1 69 53 71 00, Fax: (33)1 69 53 71 10 United Kingdom: Hamamatsu Photonics UK Limited: Lough Point, 2 Gladbeck Way, Windmill Hill, Enfield, Middlesex EN2 7JA, United Kingdom, Telephone: (44)181-367-3560, Fax: (44)181-367-6384 North Europe: Hamamatsu Photonics Norden AB: Smidesvägen 12, SE-171-41 Solna, Sweden, Telephone: (46)8-509-031-00, Fax: (46)8-509-031-01 Italy: Hamamatsu Photonics Italia S.R.L.: Strada della Moia, 1/E 20020 Arese (Milano), Italy, Telephone: (39)02-935 81 733, Fax: (39)02-935 81 741 Cat. No. SIMS1004E01 FEB/99 CR Created in Japan (PDF)