Hidrológiai Közlöny 1964 (44. évfolyam)

2. szám - Kránicz László–Muszkalay László–Starosolszky Ödön: Új műszerek helyszíni hidraulikai vizsgálatokhoz

Kránicz—Muszkalay—Starosolszky: Műszerek hidraulikai vizsgálathoz Hidrológiai Közlöny 1964. 2. sz. 79 ,Fuess" siéliró 3. ábra. A Kránicz-féle hullámzásíró kapcsolási rajza <t>uzypa 3. CxeMa coeduuenuH npuőopa, pezucmpupywiqeeo npoifecc deuncenua BOAHU Fig. 3. Circuitry of wave recorder O MECTHblX rHJfPABJlMMECKHX MCCJlEflOBA­HMHX HOBblX nPMEOPOB Jl. Kpanui), Jl. MycKaAau, 3. Ulmapouiojiacu MecTHwe niApaBJiiiMecKne H3MepeHHsi 3Ha'mTejibH0 pa3JiHqaJ0Tca OT jiaöopaTopHbix H3MepeHHH IOK B cpe/i­CTBax, Tan n B cnocoöax. riepej M0flepnn3anHefi Me>K«y npOMHM 5IBJI>ieTC$l npenHTCTBIICM OTCYTCTBIie 3jiei<Tpn­MecKOH ceTH. B Bodoxo3HŰcmeenHOM lUiymio-HccAedoea­meAbCKOM Hncmumyme pa3paőoTajin MecTHbix ii3Me­peHHÖ pa3JlH4Hliie HOBbie npilöopbl B COOTBeTCTBIIIl c ITOTpeÖHOCTHMIl H3MepeHHIÍ C UejIblO THApaBUHMeCKOrO conocTaBjieHim uccjiejtoBaHiiíí na MOACJIH n nocTpoeHHbix coopy>KeHn>ix. B craTbe H3JiaraioTCfl HeK0T0pbie öojiee 3na iinTejib­Hbie npHÖopbi H3 HOBUX npnőopoB. Jl. 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KpaHHi; KOHCTpyHpoBaji 3jieKTpoMexaHHHecKnii H3MepHTejibHbiií npn6op fljia perHCTpauiiH öbicTpbix H3MeHeHHH noBepxHoc™ BOflbi H npouecca pa3Hbix BOJT­HOBUX ABH>KeHHH. 3TOT npuőop paöoTaeT Ha aKKyMyjin­Tope, Ha sjieKTpHHeCKOÜ ceTH HJIH Ha nepeflBii>KHbix ycTa­HOBIOX c jieHTOMHbiM TpaHcnopTepo.M (na (jiiieype 3 BIIAHO B KOMÖMHANMI c aHeMorpaiJioM). New Instruments l'or Hydraulic Investigations «n the Sitc By L. Kránicz, L. Muszkalay, ö. Starosolszky There are considerable differences both in means and rnethods between hydraulic measurements on the site and in the laboratory. A great obstaele to moder­nization is the lack of an eleetrical network. At the Research Institute for Water Resources various instru­raents have been developed for measurements at the site, observing the specific demands of the various measurements, the aim of whieh is to ensure the hydraulic comparison of model investigations and the completed structure. Somé of the more important types of the lately developed instruments are dealt with here. For increasing the accuracy of velocity measure­ment — especially of turbine acceptance tests — a new jlow-meter has been developed by L. Muszkalay (III. 1) whicli_responds to lower velocities than the types hitherto used, its component measuring ability is slightly improved (Fig. 1) and is of a higher accu­racy. For measuring the direction and magnitude of velocity a new instrument has been constructed by L. Muszkalay and L. Kránicz which is produced in two types for use from the rod (Ills. 2 and 3) and írom bifilar suspension (111. 4). The horizontal and verticai deviation of the velocity vector from the direction normál to the cross section is indicated or recorded, and the revolutions of the current meter are signalled electromeehanically. For recording slowly changing jlow an oscillating­vane flow meter (Fig. 2) has been developed which reeords without a supply network the magnitude and sense of velocity, the latest type even the direction thereof, from four different depths without interrup­tion for about 1 month. The differential gear head recorder is of great importance primarily in the measuring structures used in irrigation and in water resources management. Its simple design makes it especially suited for recording small differential water levels (IU. 6). p'or recording rapid changes in the water level, such as various motion phenomena an electromechanic­al deviee has been constructed by L. Kránicz, which is powered by a battery, or from the mains and operates either as a permanent, or portable instrument with different chart speeds. (In Fig. 3 it is installed in com­bination with an anemometer.)

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