hyoushi no,7scan.xdw
Contents
1. 250 3 1 DEFM 250 1 o CPU o PRINTER DRIVER PRINTER HEAD RECORDER PRINTER INTERFACE f DEDA 7 2 2 o2. 1 216 2 2 REDD OHO o HMO DD O y FDR S DOD
3. DFM 250 DFM 250 16 68000 250 250 2 DFM 250
4. 1 5MHz 1ms 1500 DFM 250 NCS CAMERA 5 NDR DATA 0 DATA 400 5 NCLK SYNCHRONIZED CLOCK 400ns 20005 LAST CLK PULSE OF THE BLOCK 0s Min 12 SN358 Fig 12 SN358 data out timing chart DFM 250 7 1 5sec 2 1sec
5. 20lm 95 6 7 0 5 2 CRAKE Uk No 7 1985 7 HERRE LT CPU JDMA DIRECT MEM ORY ACCESS SN358 121 NDRO0 CNDR7
6. T E 85 HER 1 72 12 16 Record 6 Rk 16 T N i illo lr SO AAA N 55 0 3 8 A rt A a 1 1 WF 0 5 1 1 1 a en EE et AA NA CT EAA A A
7. 1 ANALOG Sig DIGITAL 1 ___ INTERFACE MEMORY S00KB 2MB CONTROLLER 1 DFM 250 Fig 1 DEM 250block diagram DFM 250 63 o 4 2 1 8 oc o o DFM 250 1 2 DFM 250 3 6 CPU 3 2 1
8. RAM 16KPBytes RS232C 64 X1 9 o 4096 500 2 10ms 20ms 100ms 500ms e 0 5 1 2 4 5 mS 2 1 1 RS232C 100 9600
9. 14 15 96 64 48 HEDI 081867 71 7 7 2 DFM 250
10. 8 DEM 250 8 CPU 16 32 16 68000 CPU CPU 7 ROM 16KBytes p EPROMCEL ECTRIC ERASABLE PROM
11. 5 4 Table 4 JIS specifications for thermal paper JIS P8124 50 60g f 602 0 m JIS P8118 70 80 CIS P8123 FF 100 500sece JIS P8119 3 0kg CIS P8113 1 5kg f 5 Table 5 Comparison of characteristies of thermal papers O A 20 5 1 2 10 10 80
12. PZ 2 68000 10 PP 7127 7721 Vol lu 64 No 7 686 1981 gt DIC Fo 7 2 21 5 o AA o 2
13. DEE FEE ORE 4 5 10 DFM 250
14. DFM 250 7 5 1 3 FFD ERIE 5 1 1 6 5565 2 x10 30km RETR
15. 1 7 a 1 AA 20 1 1 Ti 1 5 PMP 1 A 1 a 4 4 re A 5 AY am 0 a 7 7 DFM 250 Fig 17 Record 6 6 8 17 0 1 5 1 1 1 5 AS AV 4 5 7 1 4 7 0 03 1 0 1 1
16. 48 96 144 16 17 60 120 2 17 1 60 61 120 2 8
17. 3 RS232C 4 4 RS232C ASC11 7 3 8 13 120 3
18. 12 9 Analos interface module block diagram CDFM 250 67 4 2 2 DT 11 1 200 Vmp Vamp DERTE HD STROBE GENERATOR FEED CLOCK GENERATOR 10 STROBE GENERATOR 4 STROBE 4 REFERENCE CLOCK ONTKCL SIGNAL TIMING CONTROLLER 8 BITS DATA SERIAL PARALLEL SERIAL DOT DATA CONVERTER 10 module block diagram VHD ON OFF CONTROL VHD GAIN CONTROL a AMP TO AD
19. BUS CONTROLLER Fig 7 CPU module block diagram DATA BUS ADDRESS 5 BUS DMA INTERFACE CODE CONVERTER BUS ARBITRATION SEISMIC gt FIFO DATA BUFFER 8 Fig 8 Digital interface module block diagram MPX Multiplexer 64 0 5ms lt 4ms A D 8 1 4 1 4 6
20. 250 4 Fig 4 Memory 6 2 DFM 250 Fig 2 DEM 250 5 Fig 5 Digital interface module 3 CPU 6 Fig 3 CPU module Fig 6 Printer drive module No 7 1985 o 0 40 C 0 80 REIS UL o 30Hz 0 05 2G X 2 30 4 4 1 CPU 4 1 1 CPU CPU
21. CPU 1 6MHz 1ms 1600 B BUS BUFFER CONTROL BUS 4 1 2 CPU DFM 250 DMA DIRECT MEMORY ACCESS DFM 250 2 8
22. 2 8 DFS V TEXAS INSTRU MENTS SN 338 348 358 CSERCEL 3 04 o 2 5 5 0 5 1 2 4 ms 4 200 So o Fy FRA 1728 o 8 5 o 1 200 262 8 82 5 o 12 17A 7A o 14 2 CW 13 3 H 24 4 D o 72 DFM 250 65 a BUS ARBITRATION CPU KD BUS EERE DMA 1 1 b FIFO FIRST IN FIRST OUT BUS ARBITRATION
23. 0 3 1 Tt 1 5 0 0 3 8 1 1 1 8 1 2 hk HF 1 1 0 1 E 1 1 M 51 9 SD HAS e E E 8 FEM 1 5 Y r 1 NN n 2 RSL 4 9 7 CE EE 3 DIS 9 1 7 2 5 7 8 a OS 3 8 9 lt 1 1 4 2 5 5 1 1 N 7 3 3 1 1 Pr 42 lt 04 1 4 LU 2 Er 0 7 KT 3 1 0 CT 3 ph 1 pp FELE 0 Py 3 _ 1 FF i 8 3 1 5 4 Te 1 2 1
24. E5 4 2 _ 7 1980 i DFM 250 E r gt 2 RE Ell I NE NN HI IE E RE me e 1 1 gt EIN SE 2 5 E EEE 2 ER DESE EEE 8 8 E MM HE RN E CO 6 iim BEE NORE E HE UE SN 0 ITE Fig 14 Record sample 1 l 0 5 2 HH HI MM EMME E E 1 HI 7 NS OO HE 0 _ gt MM l 1985 DIGITAL FIELD MONITOR 250 E FE 1K DFM 250 1983 3
25. VARIABLE AREA MODE 120 4 Fig 13 Record 6 2 13 1 1 7 i 1 0 1 1 1 7 EIS 0 NNN U 2 5 1 SS DS ETE E AAA A AAA lt lt 8 1 Ed 7 00 1 7 0 1 3 1 9 lt CC 7 ER 2 1 en 2 FY VD 2 5 1 1 E4 0 1 it 0 1 TT 5 0 IO
26. PE 8 5 1 r 0 i na i EE EE EE rr No 7 1985 A E FH 6
27. 6 3 2 OS OD SD o 6 6 1 D A D A D A D A 8 D A 6 2
28. sign absolute code 1 413 DFM 250 DEM 250 9 7 1 Table 1 Data codeformat of seismic systems DATA CODE FORMAT eee SN338 1 s complement CII 1 2 0 CH 3 MULTIPLEXER CAMERA START 9
29. 3 08 0 154 x C 0 0 7V DFM 250 5 5 1 2 Table 2 Classification of heads according to material MERA FE DIEZEEKCT Clu Tle 1O O Oo Oo 3 Table 3 Classification of heads according to mechanical structure oOo o oO O oO DFM 250 609
30. 4 9 Kas St 1 4 7 8 0 7 4 1 0 4 lt 1 i 7 1 rt 0 3 1 7 H 3 2 NIL 1 1 CT a 1 00 re 8 LT e 0 Ty Nr 8 1 8 ad A PT r 6 3 INU hi E 5 0 7 6 1 kk A 1 Pa A 8 ve TP 8 1 1 1 82 1 7 5
31. ED SERAI 3D 62 7 1985 2 120 96 120 3 4 5 6
32. 1 4 0 3 7 9 8 8 e 1 3 3 8 5 re sra 1 9 21 1 Tej HE HE LIES IEEE TSN 0 LLM TTT PHI 3 e 08 oa EE HLT EE HH 2 4 1 1 RE 1 17 ie 1 TEE ik as 57 00 1
33. NCLK NCLK 5 3 6 3 1 1 2 1 2 2 MEN ROM
34. 2M BHD 256K RAM 4 2 _ _ 8 BITS DATA A D CONVERTER CONTROL SIGNAL No 7 1985 TIMING CONTROLLER 66 c DFM 250 two s complement code 1 one s complement code
35. o 7000 1 6 o 15 o 5 4 5 40 C 10 50 C REE HEEL 5 o 0 3mm 0 1mm o 76 0 5mm 6 2 x10 min 2 5rms 0 42W MY E FEE 30km MIL STD 883B 20G 80Hz 1 5mm X _ Z 30 Vmp 65C Vamp VHD Vp RB Vog S41 1 P 0 5W R 7000 1
36. 61 DEM 250 KARBE Development of Multi Channel Digital Field Monitor DFM 250 Hidehiko OHKUBO Abstract When major seismic explorations for oil or other resources are conducted it is very important to be able to evaluate the quality of acquired data rapidly at the site In recent y ears as progress has been made in data processing the type of data acquired has diversified For this reason there is a great demand for equipment capable of making high quality recordings at high speed at the site To meet this demand OYO has developed the DFM 250 a high quality system using a thermal head and capable of recording 250 channels of data simul taneously on 8 5 inch thermal paper Because 6 objective if the new system was to handle the large volumes of data 5 resource investigations generate and since there is an insufficiency of knowledge in this field in Japan OYO also consulted with specialists in Australia the U S and Canada to determine the design specifications for the DFM 250 The basic standards thus determined were a system that directly records data digitally acquired at the site that can be used with different seismic systems and which offers a choice of interfaces This was OYO s first experience in devel oping a product on the basis of consultations with an international group of experts The DFM 250 is the first OYO product developed especially fo
37. JUST PRINT TONE AMP TO PROTECT POWER Fig 10 Prnter interface PAPER SENSOR TEMPERATURE gt AMP TO ADJUST TEMP VHD VOLTAGE PULSE MOTOR LIMITTER VHD CURRENT LIMITTER VHD POWER gt FEED SIGNAL MOTOR DRIVER 9 HEAD CONTROLLER HEAD DOT DATA 2 11 Fig 11 Printer drive module block diagram 1 TTT 68 NA 7 85 DFM 250 2 3 5 1 1 FR 1 o 0 75W 9 Vpp 0 3 7 V o Vis 0 3V VDD 2 o 0 42W 2 5ms 255727 60 C o Vpp 5 25V o Vpp 3
38. r use in oll or other resource explorations The DFM 250 is a new recording system that is suited to the age of digital iuformation It is receiving attention from specialists as the successor to previous generations of analog type cameras using galvanometers 1
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