Ультраакустика

ultrasonics Specifications Calibration rangesMin.: 0 to 0.5 mm +10 % (steel), 0 to 0.02” +10 % (steel)Max.: 0 to 9,999 mm +10 % (steel), 0 to 390” +10 % (steel) within the frequency range from 0.2to 1 MHz / 0.5 to 4 MHz0 to 1,420 mm +10% (steel),0 to 56” +10 % (steel) withinthe frequency range from 0.8to 8 MHz / 2 to 20 MHzSound velocity1,000 to 15,000 m/s, 40 to 600 inch/ms variable in steps of 1 m/s, 0.1 inch/msand fixed programmed valuesDisplay delayFrom -10 to 1,000 mm, -0.3 to 40” (340 μs)Probe delay0 to 200 μsAuto calibrationMeasurement and setting of sound velocity and probe delay using two known calibration echoes(2-point calibration)Pulse intensity220 pF, 1 nFDamping50 ohms, 500 ohms (1,000 ohms in TR mode)Pulse repetition frequency4 to 1,000 Hz, variable in 10 stepsFrequency ranges (-3 dB)0.2 to 1 MHz / 0.5 to 4 MHz / 0.8 to 8 MHz /2 to 20 MHzGain0 to 110 dB, variable in stepsGain steps0.5 / 1 / 2 / 6 / 12 dB (or user-adjustable),step 0 is lockedFine gain4 dB, continuously variable in 40 stepsRectificationFull-wave, negative and positive half-wave, RF modeRejectLinear, 0 to 80 % screen heightVariable in steps of 1 %Monitor gates2 independent gates in color bar mode, start and width variable over the entire calibration range, response threshold of 10 to 90 % screen heightvariable in steps of 1 % (coincidence and anti-coincidence), alarm signal via LED and connectableinternal horn, Gate A switchable as interface gate for Gate B, gate magnifier (zooming of gate range over the entire display range)Sound path measurementDigital display of sound path (projection distance, depth) between initial pulse and the first echo in the gate, or between the echoes in the two gates, measurement always at the intersection point with the echo flank or echo peakMeasurement resolution0.01 mm within a range up to 99.99 mm/0.1 mm within a range from 100 to 999.9 mm/1 mm above 1,000 mm, 0.001” within a range up to 9.999”/0.01” above 10”With evaluation in the frozen A-scan: 0.5 % of the calibration range settingAmplitude displayIn % screen heightUSM 35X DAC: additionally in dB above DAC or TCGUSM 35X S: additionally in dB above DGS curveor ERSDisplayed readingSound path, (reduced) projection distance, depth, amplitude for every gate, userconfigurableat four positions of measurement line and of the zoomed display in the A-scanA-scan functionsManual or automatic A-scan freeze, A-scan comparison, echo dynamics(envelope), peak echo storageColor functionsPatented color-coded display of legs in angle testing, adaptation of background color to the light conditions of test environment, color display of monitor gates and of registration curves (DAC, TCG, DGS) for direct recognition, messages and alarms in red charactersDAC / TCG (Option)Only USM 35X DAC and USM 35X S: Distance-Amplitude Curves (DAC) or TCG line (TCG) with a maximum of 10 reference echoes, 4 other curves or lines can be displayed with variable dB intervals. JIS DAC can be selected in order to allow inspection acording to JIS Z3060-2002(Japanese Inspection Standard). Automatic gain control during DAC recording.DGS (Option)Only USM 35X S: DGS curves for single-element and dual-element probes (B1S, B2S, B4S, MB2S, MB4S, MB5S, WB…-1, WB…-2, SWB…-2, SWB…-5, MWB…-2, MWB…-4, SEB and MSEB) and for all materials, sound attenuation and transfer loss correction, 4 other curves can be displayed with variable dB intervalsDisplay size / resolution116 mm x 87 mm, 4.6" x 3.4" (W x H)320 x 240 pixelsA-scan size / resolution116 mm x 80 mm, 4.6” x 3.2”320 x 220 pixels (zoom)Data memory800 instrument setups or reports, including AScans can be stored, recalled, printed or exportedto a computer.RS 232 interface9-pin DSUB, bi-directional, 300 - 57,600 baudAn USB adapator cable can be provided to connect the USM 35X to a computer that does not have RS 232 portInput/Output8-way Lemo-1 socket (trigger output, gate alarm, test data release)Additional analog output for amplitude or sound path in selected gateVGA output10-way Lemo-1 socket for the connection of an external display screen or beamerDialog languagesGerman, English, French, Italian, Portuguese, Spanish, Danish, Swedish, Norwegian, Finnish, Czech, Slovenian, Romanian, Dutch, Croatian, Hungarian, Russian, Polish, Slovakian, JapaneseWeight2.2 kg, 4.9 lbs., including batteriesSize177 mm x 255 mm x 100 mm, 7.0" x 10" x 3.9" (H x W x D)