v Stationary flaw 2Ctors have proved efficient means of 3d stock testing (1). table flaw detectors very convenient for ting various items ton the workbench, ing the assembly and inting of large-size cles and construc. 'S (2), rn ammaaccmi aca ss oe ReRE PET See remerett BASIC SPECIFICATIONS OF THE MD-SERIES FLAW DETECTORS Detector model | MD.-10F MD-901 MD-100! TIUCEL LPO... ccasssnsssorensssecocces Rotary Rotary and stationary Stationary UNDET tOSt....cscsctessesssecesesese Pipe Sheet Hot-rolled Strip with welded joint 30—160 — —, up to 12 _ ad - 560—2,500 == 500 ~ 0.4—-3.0 1—6 1 TMs seesssccessesnsasstestseasereranseass 0.2 and over _ ~~ » % of metal VOSS wn ssssesserssscssenestasesesonasacarnes 10 7 - rravel By MUS ..cscscsessesessnsecnsereatsesssesecs 0.5—5.0 0.5—10.0 Approved For Release 2001/03/07 : indicator j instrument CIA-RDP96-00787R000500180031-6 ting thin wire are made by hand. The new transducers do not require handwound coils and are much longer lasting than the prior-art ones. The MD Flaw Detectors for Testing Steel Sheets and Pipes In many cases the eddy cur- rent method proves less effec- tive than that of constant mag- netic field. This is true of testing thick rolled sheets and pipes when inner as well as surface flaws are to be detected. Such sheets and pipes can best be tested, at the rate of their ma- nufacture, with the MD flaw de- tectors depending on constant magnetic field for their oper- ation. The MD-10F flaw detector comes complete with devices for magnetizing a pipe perpen- dicular to its axis (circularly) and for rotating transducers around a pipe. An electronic system processes the signals. coming in from the transducers and delivers commands to the sorting mechanism, with data on the outer and inner flaws of the pipes arriving separately. The MD-10F flaw detector has a Self-checking unit which signals any mechanical failure and any disturbance of control settings. The MD-901 flaw detector is intended for testing rolled Sheets in’ crosswise and lengthwise metal cutting lines. It sorts out good sheets from faulty ones and indicates the location of flaws. Magnetic field dispersions in the flaw areas are picked up both by Stationary transducers and those rotating parallel to the metal sheet. Depending on the rolled stock width there can be one transducer or several of them. A special electronic cir- Cuit precludes mistakes con- nected with changes in clea- rance between the transducers and the metal article being tested. , The MD-1001 welded joint 33
ry which delivers. signals to the automatic system of a contin- uous steel sheet rolling mill. The information it furnishes about the joint helps adjust roll- ing speed and prevent metal strip breakage. The instrument can also be used in continuous pickling lines, automatic weld cut-out machines and other such units. An important distinguishing feature of the MD-100I indicator is its high noise immunity which precludes the generation of spurious signals. An ingenious layout of the transducers and a new method of information processing make it possible to single out the weld’s magnetic field only, “ignoring” single or group flaws. The instrument comes complete with a sheet magnetizing device. Portable Universal Flaw Detectors for Transport and Heavy Engineering Surface defects — cracks, aair seams, laps and other defects of ferrous and non-fer- rous metals on planes 30 mm and more in diameter are de- ‘ected quickly and accurately xy the VD-20N-D_ instrument. *itted out with a rotary trans- jucer and using the eddy cur- ‘ent method, it finds flaws from ).2 mm deep and 10 mm tong ven on articles with an elec- rically non-conductive coating ip to 1 mm thick. The flaw de- ector is equipped with a defect ndicator lamp. A more accu- ate information about the sur- ace being tested can be ob- ained from the screen of a ca- node-ray tube. As the trans- lucer is moved over the metal urface by hand, ihe instrument as a special electronic circuit > preclude spurious signals nd misses which might be aused by variations in the learance between the trans- ucer and the metal being sted, The MD-40K flaw detector is 3ry convenient for checking the quality of coarse threads of steel components like studs, rods, bolts and hooks. The in- strument is fitted with a set of transducers which make it possible to check on threads 30 mm and over (pitch from 1.5 to 42mm). The instrument detects flaws more than 0.5 mm deep and over 10 mm long. The transducer is moved consecu- tively along the thread fillets for the purpose. The procedure can be easily mechanized, if necessary. The MD-41K flaw detector reveals fatigue cracks in gear transmissions with pitches of 4.5 to 8 made of ferromag- netic materials. This instru- ment, with its electronic circuit similar to that of the MD-40K, comes complete with a set of transducers for checking gears over. the entire -above- mentioned range of pitches. A transducer is placed in a gear tooth space by hand. An ad- vantage of this instrument is that with it gear wheels can be tested without the gear trans- mission being taken apart be- cause there is no need for any special preparation of the arti- cles under test. The instrument detects flaws more than 2 mm deep and over 10 mm long. The magnetographic method of testing welded joints in pipelines up to 1,420 mm in diameter, with pipe walls up to 20 mm thick is more con- venient — and much safer for the servicing personnel — than the radiographic one. The magnetographic method con- sists in placing a piece or ord- inary ferromagnetic tape 35 or 50.8 mm wide on a joint and recording the flaws’ magnetic | field on it by passing a per- manent magnet along the joint. The new UV-30G flaw detec- tor reads the information re- corded on tape — the leakage fields of the weld’s flaws — and : reproduces it on the screen ol the cathode-ray tube. Besides, test results are recorded on paper tape. This method of tes- ting is 5-7 times more efficient than the X-ray or radioisotopic ones. A THOUSAND INTEGRATED CIRCUITS PER HOUR A new semi-automatic solder- ing device is 3 to 10 times more efficient than conventional equipment. Add to this the excellent qua- lity of soldered joints, the opti- mum conditions of solder mel- ting, extraordinary soldering efficiency (it takes a mere 0.3 sec to solder one lead), the ab- sence of solder “jumpers” between leads, the light weight and compact size. Another merit of the device is a simple and efficient facility to prepare microcircuits for ass- embly. It bends microcircuit leads, trims them to size and applies precisely dosed-o amounts of solder to their enc. — all in one working stroke! The semi-automatic solderir. device and the integrated ci cuit preparation facility hav been patented in the USA, th FRG, Great Britain, Franc: Japan and other countries. BASIC SPECIFICATIONS OF THE SEMI-AUTOMATICG DEVICE FOR SOLDERING INTEGRATED CIRCUITS AND FACILITIES FOR PREPARING THEM Semi-automatic device: Efficiency, integrated circuits per NOUF.......sssecesenee up to 1,000 Soldering temperature, 0° Cr... rscceneroneesernrcerresseesnessenes about 300 Temperature maintenance accuracy, 0° C....csssceerenes 5 Maximum printed card SiZ©, MM....ssssssessneceoereaererersenns 210 x 280 Overall dimensions of the semi-automatic soldering device, mm.. 400 x 500 x 220 Mass, KQ.ssssssscscesssssenescersnnsnreessenssnmuetecseasenterenees wee 7 Power consumption, W wee 150 Integrated circuit preparation facility: Press effort, Necssesssserencsssssssenesenscsnssarssnsnsssesomuecsseensnrenszetss 700 Rod stroke, MM......+0+ ae 20 Solder wire diameter, MIM... ssecsssscssesetsseneseeenecenetasenees 030.6 Overall dimensions of facility, MIM.....-ccceseesessrceereseserseee 150 x 6 Mass, KQussscescscomssnessessnscnnsssnencscecsssenssonnnsusnscnsnancnerseneeesneernees 2 | Approved For Release 2001/03/07 : CIA-RDP96-00787R000500180031-6
W ULTRASONIC STRUMENTS R OBSTETRICS KOROLYOV, T(Tech), ), of Department, ite of Introscopy early diagnosis problem ‘ed by various methods, crasonic method (UZ) be- ‘tainly the most suitable yr use in obstetrics and cology. ew instrument, Malysh DM), has been devel- specially for obstetri- lts ultrasonic converter continuous ultrasonic tions to the patient's jrough a layer of contact The signals, reflected internal structures, are up by the converter, with quency of the oscillations ed from moving struc- ‘the heart, blood vessel 3tc.) differing from that of cillations reflected from ary structures (the Dop- ‘ect). As distinct from the scopic methods, the ul- c converter is not affec- usual acoustic noises in se. design of the amplifier atecior of the Doppler icy signal ensures the 1oise ratio necessary for Mer SS aw Ys dD. -yny? 397297? arr 2) 4727221, yr yy g272>324 ays, a7? yay? ig? sending minimum-power ultra- sonic signals to the patient's body. Radiation intensity does not exceed 10 MW/cm?, which totally precludes any harmful effects on the foetus. The Malysh can be used for diagnosing palpitation and cardiac disorders in the foetus and for localizing the placenta. Palpitation is detected as early as In the 8th-10th week of pregnancy. Thanks to the con- verter fitted with focussing len- ses of a special design, the lo- cality of the moving structure control has been sharpened, and their differentiation im- proved. In these character- BASIC SPECIFICATIONS OF DEVICES FOR ULTRASONIC MEDICAL INVESTIGATIONS area under examination, mm. | resolution, mm: ing frequency, MHZ.....ccsecsseee ouusescressanesl storage time, min cue pnamuausccodunnanesonscensdsasoonnes Malych From batteries} From 220 V mains 400 x 300 aver Left — the Malysh por- table instrument; right — the Ekran stationary fomograph with two di- splay units (screen sizes: 23 and 50 cm in diagonal). istics, the Malysh is superior to the prior-art instruments of its kind. The Ekran (UI-20EM) pulse ultrasonic tomograph is of a still wider diagnostic lati- tude. It shows sectional roent- genograms of internal organs on a display unit screen. Upon being processed, the echo signal proceeds to the memory unit where an image is formed by scanning. A vidicon is used as a memory cell; in- formation about the converter’s co-ordinates and the reflected pulse amplitude is delivered to the intermediate picture tube. The final signal shaped on the vidicon target appears on the videomoniter screen as a halt- tone image. This mode of to- mograph operation is usually referred to as the “B” mode. Besides, the image can be formed in the “A” and “M” modes. In the former mode, the sig- nal is formed on the screen only along the line scanned by the ultrasonic converter at the moment. On the horizontal, the visual display unit screen shows the value of the echo pulse, and on the vertical — the distance inside the body from the converter’s point of contact with the skin. This method is commoniy used in encephalo- graphy to study brain struc- tures. What the “M” and “A” modes have in common is the immobi- lity of the converter. The differ- ence between the modes is that in the “M” mode the echo am- plitude shows as bright lumi- nance in the appropriate point of the screen, and the ampli- tude of this or that structure’s movement — as a “hump" ris- ing over the scan trace. This mode is used chiefly in cardio- logy for examining heart valves and wails. Two visual display units with 23 and 50 cm screens (diag.) broaden the sphere of the Ek- ran device’s application con- siderably. tn particular, it is used for diagnosing kidney, liv- er and other troubles, localizing stones, tumours and_ inflam- mations. It enables oncologists to determine the size and posi- tion of metastases more con- fidently. A distinguishing feature of the Ekran device is its conver- ter of a new design which en- sures high pulse resolution of the device. Approved For Release 2001/03/07 : CIA-RDP96-00787R000500180031-6