CTS-8077PR 型脉冲发生接收仪，是本公司新推出的探头测试专用仪器。该仪器符合欧标 (EN12668:2000 ) 探头测试系统要求,具有极低噪声和宽频带的接收放大器，并由高性能方波脉冲发生器和高压电路组成***的发射电路。与数字示波器可组成对超声探头声学特性的评价和性能指标的测试，也可用于超声波探伤系统探伤、厚度测量、材料特性测定等应用。该仪器的问世填补了国内空白，也是替代国外同类产品的选择，性能价格比极高。
宽带方波脉冲发射器。
脉冲宽度可调范围为25ns～6500ns，小步进为5ns，对应80kHz到20MHz的探头。
脉冲电压可调,-25V～-400V,以25V为步进。
脉冲重复频率可选，重复频***达5kHz。。
宽频带（30MHz）脉冲接收器。
60dB RF增益，1dB步进调整。
50dB RF衰减，1dB步进调整。
10MHz或30MHz可选低通滤波器。
1kHz或1MHz可选高通滤波器。
USB接口，计算机同步控制并且为用户提供PC同步控制软件和用户开发包。
5072PR手动控制超声脉冲发生器接收器既可用于常规应用，又可用于高频应用。用于一般检测的理想配置是35 MHz（-3 dB）带宽和尖脉冲发生器。 优化的宽带激励会产生***的时域恢复效果，特别是在15～30 MHz的情况下。
5072PR, 5073PR, 5077PR
The 5072PR, 5037PR, and 5077PR manually controlled ultrasonic pulser-receivers are for both conventional and high frequency applications
These affordable and reliable manually controlled pulser-receivers provide the perfect building blocks for both conventional and high frequency applications. Each instrument is designed for superior low noise receiver response and high performance pulser control.
When used with an appropriate transducer and analog or digital oscilloscope, Panametrics pulser-receivers provide the perfect starting point for ultrasonic flaw detection, thickness gaging, materials characterization, and transducer characterization. |
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Features & Benefits |
? Three models provide optimization for both conventional and high frequency applications
? Broadband Spike (5072 and 5073) or Tunable Square Wave (5077) transducer excitation models available
? Front panel controls permit quick and 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 and pulser optimization ensure superior signal-to-noise characteristics
? Superior ***lation 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 and 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 and near surface resolution.
Model 5077PR: 35 MHz (-3 dB) ultrasonic bandwidth and 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 or lower, as adjustable pulse width optimizes pulse energy, resulting in superior signal-to-noise characteristic. |
Ultrasonic Pulser-Receivers |
Pulser-receivers employed with ultrasonic transducers and an analog or 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 and 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 and method may be pursued.
Square Vs. Spike Excitation
Spike excitation pulsers optimize broadband response and near surface resolution.
For applications involving the testing of thin materials with high frequency transducers where fast recovery time and broadband transducer response are important to insuring adequate time and depth resolution, Models 5072PR and 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 selecting pulse energy and damping values, which adjust pulse rise time, width, and voltage. In general, lower energy values and 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 or highly attenuating materials with low frequency transducers, typically improving both penetration capability and signal-to-noise ratio. The Model 5077PR provides square wave excitation with a fast pulse rise and fall time. The pulse voltage and 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 or more as compared with spike pulsers using the same voltage setting. The effect is especially pronounced with transducers of 5 MHz and lower frequency. |
公司名称：深圳华清仪器仪表有限公司
公司电话：0755-28199550
公司传真：0755-29806349
热线电话：18675597965 13684941024
公司地址：深圳龙华新区三联路清泉二期12
公司网址:HTTP://
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