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| PSD Signal processing circuit for 1-D PSD C3683-01 Circuit board for easier 1-D PSD operation Features Position can be measured just by installing a 1-D PSD on the board. l Accurate position sensing Position data of light spot is independent of light intensity. l Compact design Head amp, signal addition/subtraction circuits, and analog divider circuit are mounted on a compact PC board. Applications l No complicated adjustments required l Displacement measurements using DC light l Various studies using 1-D PSD l Performance evaluation of 1-D PSD s Absolute maximum ratings Parameter Supply voltage Input signal current Output short-circuit time Operating temperature Symbol Vcc Max. IIN Max. Topr Value 18 Vcc Max. x 10-5 Continuous 0 to +50 Unit V A s C s Recommended operating range Parameter Supply voltage Symbol Vcc Condition Min. 14.5 Typ. 15 Max. 15.5 Unit V s Specifications / Characteristics (Ta=25 C, Vcc=15 V) Condition Min. Typ. Max. Unit 0.95 x 105 1 x 105 1.05 x 105 V/A Factory setup prior to shipping 950 1000 1050 pF Factory setup prior to shipping Photocurrent with PSD 2 -5 -4 1 x 10 Input signal current * IIN 1 x 10 A installed Output res pons e tim e vers us m ovem ent of light Rise time (output 10 to 90 %) tr 300 s spot pos ition, m eas ured w ith P SD installed. PSD reverse voltage VR 0 +5 +14 V Factory setup prior to shipping Output offset voltage Vos *3 -10 +10 mV With PSD installed and Output voltage amplitude Vo light spot falling on edge -10 +10 V of active area. Output noise (analog divider) Vn All range *3 25 mVp-p Current consumption Icc *3 15 mA *1: These resistors are lead types and inserted into sockets, so it can be easily to exchange by the user if necessary in a range between 1 x 104 to 1 x 106 . For more details, see the instruction manual that comes with the product. *2: PSD does not operate correctly if the input signal current is outside the specified range. *3: With no PSD installed, 20 A (X1=X2) is supplied to the circuit as current signal that substitutes for PSD photocurrent Parameter Head amp conversion impedance *1 Feedback capacitance Symbol Rf Cf 1 Signal processing circuit for 1-D PSD s Dimensional outline (unit: mm, tolerance: 0.2 mm) 56 28 50 28 THROUGH HOLES FOR EXTERNALLY CONNECTED PSD PSD INSTALLTION POSITION C3683-01 s PSD and output voltage OUTPUT Vo (V) +10 11.5 54321 L -2 0 L +2 LIGHT SPOT POSITION X (mm) 60 66 -10 KACCC0040EA (4x) 3.2 CENTER OF PSD ACTIVE AREA PHOTOSENSITIVE SURFACE LIGHT SPOT X D-SUB CONNECTOR (Hirose Electric: RDEB-9P) 15.5 MAX. - L 2 + L 2 KPSDC0062EA KACCA0035EC S1352, S3931 and S3932 (PSD made by Hamamatsu) can be directly mounted on the board. To mount other types of 1-D PSDs, use through holes on the board. s Input/output terminals q D-sub connector Name Term inal N o. 1 VR 2 3 4 5 6 7 8 9 Vo -V +V G VB V2 V1 VA Content PSD bias voltage m onitor output Divider output (position-converted voltage) -15 V input +15 V input GND Subtracted signal output Head amp output 2 Head amp output 1 Summed signal output s Operating example PSD X1 C 1 5 C3683-01 4 5 3 2 5 +15 V CONSTANT GND VOLTAGE POWER -15 V SUPPLY Vo GND VOLTMETER X2 KACCC0039EA q Through holes for externally connected PSD Name Content Term inal N o. 1 IN1 Input from PSD output 1 2 G GND Bias voltage output for 3 VR connection to PSD cathode 4 G GND 5 IN2 Input from PSD output 2 Measurement conditions 1. Light source: LED (p=900 nm) 2. Light spot: 200 m 3. PSD: S1352 (L=34 mm) 4. PSD photocurrent: 10 A 5. Voltmeter: 195A (KEITHLEY) 6. Frequency bandwidth: 10 Hz 7. Constant voltage power supply: 15 V, power supply capacity: 0.1 A or more, ripple voltage: 3 mVp-p or less When measured under the above conditions, the following output voltage amplitude and position resolution can be obtained. * Output voltage amplitude: VFS=10 V * Position resolution: l=approx. 0.3 m (calculated value) s Accessories * Connector HDEB-9S (Hirose Electric: For connections to power supply and output readout device) Information furnished by HAMAMATSU is believed to be reliable. However, no responsibility is assumed for possible inaccuracies or omissions. Specifications are subject to change without notice. No patent rights are granted to any of the circuits described herein. (c)2003 Hamamatsu Photonics K.K. HAMAMATSU PHOTONICS K.K., Solid State Division 1126-1 Ichino-cho, Hamamatsu City, 435-8558 Japan, Telephone: (81) 053-434-3311, Fax: (81) 053-434-5184, http://www.hamamatsu.com U.S.A.: Hamamatsu Corporation: 360 Foothill Road, P.O.Box 6910, Bridgewater, N.J. 08807-0910, U.S.A., Telephone: (1) 908-231-0960, Fax: (1) 908-231-1218 Germany: Hamamatsu Photonics Deutschland GmbH: Arzbergerstr. 10, D-82211 Herrsching am Ammersee, Germany, Telephone: (49) 08152-3750, Fax: (49) 08152-2658 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: 2 Howard Court, 10 Tewin Road, Welwyn Garden City, Hertfordshire AL7 1BW, United Kingdom, Telephone: (44) 1707-294888, Fax: (44) 1707-325777 North Europe: Hamamatsu Photonics Norden AB: Smidesvagen 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 2 Cat. No. KPSD1004E03 Apr. 2003 DN |
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