5073PR手動控制超聲脈沖發(fā)生器接收器既可用于常規(guī)應用，又可用于高頻應用。 在對軸向和近表面分辨率要求極高的應用中，這款設備的75 MHz（-3 dB）帶寬和快速上升的尖脈沖發(fā)生器可提高50 MHz探頭的工作性能。 5072PR, 5073PR, 5077PR The 5072PR, 5037PR,.5077PR manually controlled ultrasonic pulser-receivers are for both conventional.high frequency applications These affordable.reliable manually controlled pulser-receivers provide the perfect building blocks for both conventional.high frequency applications. Each instrument is designed for superior low noise receiver response.high performance pulser control. When used with an appropriate transducer.analog.digital oscilloscope, Panametrics pulser-receivers provide the perfect starting point for ultrasonic flaw detection, thickness gaging, materials characterization,.transducer characterization. Features & Benefits • Three models provide optimization for both conventional.high frequency applications • Broadband Spike (5072.5073).Tunable Square Wave (5077) transducer excitation models available • Front panel controls permit quick.easy setup of parameters for optimizing signal response • Each model delivers a wide dynamic range with 1 dB sensitivity adjustments made through a front panel lever switch • Low noise receiver amplification.pulser optimization ensure superior signal-to-noise characteristics • Superior isolation of receiver from pulser main bang when operating in thru-transmission mode • +/-1 volt RF output into 50 ohm load • Small, lightweight packaging Three Models To Fit Your Testing Needs Model 5072PR: 35 MHz (-3 dB) ultrasonic bandwidth.spike pulser is ideal for general testing. The impulse pulser provides optimal broadband excitation resulting in superior time domain recovery especially at higher frequencies (between 15-30 MHz). Model 5073PR: 75 MHz (-3 dB) ultrasonic bandwidth with fast rise time spike pulser extends performance for work with 50 MHz transducers in applications that challenge limits in axial.near surface resolution. Model 5077PR: 35 MHz (-3 dB) ultrasonic bandwidth.square wave pulser-receiver is ideal for maximizing response in scattering materials. The square wave pulser is particularly advantageous when testing with transducers of 10 MHz.lower, as adjustable pulse width optimizes pulse energy, resulting in superior signal-to-noise characteristic. Ultrasonic Pulser-Receivers Pulser-receivers employed with ultrasonic transducers.an analog.digital oscilloscope are the prime building blocks of any ultrasonic test system. The pulser section produces an electrical pulse to excite a transducer that converts the electrical input to mechanical energy, creating an ultrasonic wave. In pulse-echo applications, ultrasound travels through the test material until it is reflected from an interface back to the transducer. In thru- transmission applications, the ultrasound travels through the material to a second transducer acting as a receiver. In either case, the transducer reconverts the mechanical pulse into an electrical signal that is then amplified.conditioned by the receiver section. The resulting RF is then made available for further analysis. Since the customer chooses the waveform display and/or digitization methodology, infinite flexibility in measurement range.method may be pursued. Square Vs. Spike Excitation Spike excitation pulsers optimize broadband response.near surface resolution. For applications involving the testing of thin materials with high frequency transducers . fast recovery time.broadband transducer response are important to insuring adequate time.depth resolution, Models 5072PR.5073PR employ a spike excitation technique that produces an abrupt voltage transition followed by a recovery to the baseline. The ultra-fast rise times directly translate to broad spectral excitation resulting in wideband transducer response. It is possible to optimize transducer response by .ing pulse energy.damping values, which adjust pulse rise time, width,.voltage. In general, lower energy values.damping resistance will produce the sharpest rise times for the most efficient excitation of high frequency transducers. In fact, the 5073PR pulser electronics can achieve rise times of less than 2 ns, enabling the use of up to 50 MHz broadband transducers. Square wave pulsers dramatically increase sensitivity while maintaining broadband performance by tuning pulse width to the resonant frequency of the transducer. Square wave excitation is especially useful in applications involving the testing of thick.highly attenuating materials with low frequency transducers, typically improving both penetration capability.signal-to-noise ratio. The Model 5077PR provides square wave excitation with a fast pulse rise.fall time. The pulse voltage.pulse width are adjusted directly to provide precise control over pulse shape. By tuning the period (pulse width) of the square wave to half that of the transducer center frequency, pulse energy to the transducer at its natural resonant frequency is increased. This can result in an increase in signal amplitude as great as 12 dB.more as compared with spike pulsers using the same voltage setting. The effect is especially pronounced with transducers of 5 MHz.lower frequency. Specifications* PULSER 5072PR 5073PR 5077PR Pulse Type (main bang): Negative Negative Impulse Negative Square Wave Rise Time (10% to 90%): Typically 5 ns, 10 ns max Typically <2 ns Typically <10 ns, 20 ns max (rise.fall time) Available Pulse Voltage: (no load) -360 V -180 V . -400 V, -300 V, -200 V, -100 V Available Pulse Energy: 13, 26, 52,.104 µjoules 2, 4, 8,.16 µjoules N/A Damping: . 15, 17, 20, 25, 36, 50, 100,.500 ohms 12, 14, 17, 20, 25, 33, 50,. 100 ohms N/A Pulse Width: N/A N/A 10 preset fixed widths: 15-20,10, 7.5, 5.0-6.0, 3.5-4.0, 2-2.25, 1.0, 0.5, 0.25, 0.1 MHz. Variable +/-25% fine vernier tuning for each width. Mode: Pulse Echo.Thru-Transmission Isolation (53 dB min): Typically 62 dB at 10 MHz Typically 62 dB at 50 MHz Typically 62 dB at 10 MHz Pulse Repetition Rate: (Internal) 100, 200, 500, 1000, 2000,.5000 Hz 200, 500, 1000, 2000, 5000, 10000,.20000 Hz 100, 200, 500, 1000, 2000, 5000 Hz, except that maximum PRF is limited to: 2000 Hz FOR 0.5 MHz tranducers, 1000 MHz for 0.25 MHz transducers,.50 Hz for 0.1 MHz transducers. Pulse Repetition Rate: 0-6 kHz (External) 0-10 kHz 0-5 kHz (observe limitations of PRF versus pulse width) Synch Output Pulse: 3 V into 50 ohms External Trigger Input: (in series with 10 Kohms) 2.4 V into 1000 PF 200 ns minimum pulse width 2.4 V into 1000 PF 200 ns minimum pulse width 2.4 V into 1000 PF 50 ns minimum pulse width RECEIVER 5072PR 5073PR 5077PR Maximum Bandwidth: (-3 dB, RL=50 ohms) 1 kHz - 35 MHz 1 kHz - 75 MHz 1 kHz - 35 MHz Voltage Gain: 0-59, 1 dB steps (RL=50 ohms) 0-39, 1 dB steps (RL=50 ohms) 0-59, 1 dB steps (RL=50 ohms) Phase: inverting.non-inverting (internal switch) Attenuator Range: 0-59, 1 dB steps (RL=50 ohms) 0-49, 1 dB steps (RL=50 ohms) 0-49, 1 dB steps (RL=50 ohms) High Pass Filter: 1 kHz (out).1 MHz 1 kHz (out).5 MHz 1 kHz (out).1 MHz Low Pass Filter: 35 MHz (out).10 MHz 75 MHz (out).20 MHz 35 MHz (out).10 MHz Noise: 70 µV pk-pk typical, referred to input, BW=35 MHz 200 µV pk-pk typical, referred to input, BW=75 MHz 70 µV pk-pk typical, referred to input, BW=35 MHz Max Signal Output: +/-1V pk., terminated in 50 ohms Input Resistance: (Thru-Transmission) 500 ohms linear range 100 ohms > linear range 100 ohms linear range 50 ohms at levels > linear range 500 ohms Output Impedance: 50 ohms 50 ohms 50 ohms Maximum Input Power: 400 mW 400 mW 500 mW UNIT 5072PR,5073PR,5077PR Input/Output: External Trigger In, Sync Out, RF Out, T/R.R: All BNC female connectors Power Main Requirements: 100/120/220/240 VAC, 50/60 Hz Operating Temperature: 0-50°C Size.Weight: 7" W x 3.5" H x 9.1" D (178 mm x 89 mm x 232 mm); 5 lbs (2.3 kg) ORDERING INFORMATION: Each model is shipped with a power cord.operator manual. Transducers.cables are sold separately. Our sales department is available to discuss your application in detail.to assist with transducer .ion. *All specifications are subject to change without notice.