TEL-1001 Ultrasonic Echoscope System
- Measure the speed of sound
- Compare the speed of longitudinal and transverse sound waves
- Measure frequency dependent attenuation of sound
- Create ultrasound images
- Investigate the resolution of ultrasound images vs frequency
Contents
- TEL-10010 Ultrasonic Echoscope
- TEL-10015 1MHz Ultrasonic Transducer x 2
- TEL-10017 4MHz Ultrasonic Transducer x 2
- TEL-10027 Acrylic Body with Drilled Holes
- TEL-10020 Longitudinal and Transversal Wave Equipment Kit
- TEL-10022 Aluminum Test Block with Protractor Scale
- TEL-10023 Polyoxymethylene Test Block with Protractor Scale
- TEL-100251 Pair of Reflection Blocks
- TEL-10026 Set of 3 Cylinders
| TEL-1001 Ultrasonic Echoscope System | $11,325.00 |
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TEL-10010 Ultrasonic Echoscope
This device is used to conduct ultrasound experiments with the 1 MHz (U10015) and 4 MHz (U10017) transducers. It is equipped with a built-in transmitter and receiver, time-dependent amplification (time-gain-control or TGC) as well as an integrated analog-to-digital converter and microprocessor for connection to a measurement and evaluation computer via parallel port. The ultrasonic transducers are connected via robust snap-in jacks, their frequencies being identified automatically by the ultrasound scanner. Ultrasound tests can be conducted in reflection mode (pulse-echo principle) or through-transmission mode. In order to adapt the signal, the transmitting power and amplification can be adjusted over a wide range. Losses in the intensity of the ultrasonic pulses due to attenuation can be compensated by means of time-dependent amplification (time-gain-control or TGC). The threshold value, starting value, rise time and gain time are adjustable. The most important function signals (trigger, TGC, low-frequency (amplitude) signal, high-frequency signal) are output to BNC sockets and can be displayed on an oscilloscope.
For the purpose of measuring and analyzing reflected signals, the scope of delivery includes a software program supported by the following 32-bit operating systems: 95/98/ME, Windows NT/2000 and Windows XP. The equipment can be connected to a computer's parallel port (LPT). Received signals (sonogram) and simultaneous TGC signals are displayed on the screen. The sonogram can show the low-frequency (amplitude) signal, high-frequency signal or both simultaneously as functions of time or penetration depth. Measurements can be evaluated by means of several techniques such as cursor-based indications, zoom function and fast Fourier analysis. All currently set device parameters (transmission power, frequency, gain etc.) are displayed on the screen. Additional program functions allow a display of 2-dimensional ultrasonic cross-sections (B-images) and the time curves of moving reflection layers (time-motion technique). Ultrasonic transducers are not included in the scope of delivery.
| Frequency range: | 1 MHz to 5 MHz |
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| Transducer identification: | Automatic |
| Measuring mode: | Switchable between pulse-echo and through-transmission |
| Transmission signal: | Dirac pulse (< 1 µs, 10 V to 300 V) |
| Transmission power: | 0-30 dB, in 10 dB steps |
| Gain: | 0-35 dB, in 5 dB steps |
| TGC: | Continuously adjustable threshold value, start value, rise time and gain time Maximum gain of 30 dB |
| Connections: | TGC signal, trigger, low-frequency signal, high-frequency signal via a BNC jack in each case |
| Computer connection: | Connection via Sub D-25 connector to the parallel port (LPT) A parallel cable with plugs at both ends is included in the scope of delivery |
| Scanning rate: | 10 MHz per channel |
| Dimensions: | 256 mm x 257 mm x 156 mm |
| Mains voltage: | 115 V / 230 V, 50/60 Hz |
| Power consumption: | Approximately 20 VA |
| TEL-10010 Ultrasonic Echoscope | $6,887.00 |
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TEL-10015 1MHz Ultrasonic Transducer
This component is designed for tests involving large penetration depths or high acoustic power at low depth resolutions. It includes a 16-mm piezo-ceramic disc in a die-cast metal case and a 1-m long cable with a frequency-coded snap-in plug. The equipment is adapted to sound in water. Dimensions: 65 mm x 27 mm Ø
| TEL-10015 1MHz Ultrasonic Transducer | $897.00 |
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TEL-10017 4MHz Ultrasonic Transducer
For tests involving small penetration depths and maximum depth resolution, choose this component. It includes a 16-mm piezo-ceramic disc in a die-cast metal case and a 1-m long cable with a frequency-coded snap-in plug. The equipment is adapted to sound in water. Dimensions: 65 mm x 27 mm Ø
| TEL-10017 4MHz Ultrasonic Transducer | $897.00 |
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TEL-10027 Acrylic Body with Drilled Holes
You'll find a wealth of uses for this device including: determining the speed of sound and the lessening of ultrasonic signals in polyacrylate, localizing defects, investigating anomalies from acoustic shadows and ground returns, analyzing frequency-dependent resolving power and displaying manual B-images. Both the 1 MHz (U10015) and 4 MHz (U10017) transducers are required for studying resolution. Our polished polyacrylate cuboid has holes of different sizes and is used to simulate defects located at various distances from the surface of the block. Dimensions: 150 mm x 80 mm x 40 mm
| TEL-10027 Acrylic Body with Drilled Holes | $101.00 |
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TEL-10020 Longitudinal and Transversal Wave Equipment Kit
Used for demonstrating the motion and propagation of longitudinal and transverse waves (shear waves) and determining the elastic constants (shear modulus, modulus of elasticity and Poisson ratio) of solid bodies. It's also a great tool for detecting ultrasonic attenuation in liquids via time-dependent amplitude measurements when used with a movable reflector (U10022).
The equipment set consists of a sound trough, polyacrylate test plate in a holder with a protractor scale, and 2 fixtures the for precise positioning of the 1 MHz (U10015) or 4 MHz (U10017) transducer on the sound trough.
Includes polyacrylate test block. Aluminum (U10022) and polyoxymethylene (POM) (U10023) test blocks available separately.
Demonstrating the Concepts:
Initially, the test object is subjected to vertical sound waves inside the water-filled sound trough. Only longitudinal sound waves are broadcast through the object and the transmitted amplitude of these waves is registered. If the test object is rotated, an increase in the angle of rotation leads to a decrease in the amplitude of the longitudinal sound waves and an increase in the propagation of transverse waves through the object. These waves appear on the amplitude display in the form of a second peak.
The angle of total reflection of the longitudinal sound wave determines the speed of longitudinally transmitted sound. The angle corresponding to maximum transmission amplitude of the transverse sound wave will establish the speed of transversely transmitted sound. If rotation is continued, the transverse sound component may also undergo total reflection, depending on the ratio between the speed of transversely propagated sound and the speed of sound in the surrounding liquid.
These two speeds of sound can be used to determine the test object's shear modulus, modulus of elasticity and Poisson ratio. Compared with the speed of sound in water, the speed of the transversely propagated sound is almost the same in polyacrylate, higher in aluminum and lower in polyoxymethylene.
| Sound trough dimensions: | 200 mm x100 mm x 60 mm |
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| Protractor scale: | 360°, 5° divisions |
| Polyacrylate block dimensions: | 70 mm x 45 mm x 10 mm |
| Test plate dimensions: | 104 mm x 75 mm x 50 mm |
| TEL-10020 Longitudinal and Transversal Wave Equipment Kit | $298.00 |
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TEL-10022 Aluminum Test Block with Protractor Scale
This Aluminum test block is delivered on a holder with a protractor scale and is used to examine the spread of transverse waves in metals and determine the elastic constants of aluminum, such as its shear modulus, modulus of elasticity and Poisson ratio. The test block's high reflection coefficient in water provides sizeable signal amplitudes for measurements of attenuation in liquids (e.g. water, cooking oil or glycerin).
| Protractor scale: | 360°, 5° divisions |
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| Aluminum block dimensions: | 70 mm x 45 mm x 10 mm |
| Test plate dimensions: | 104 mm x 75 mm x 50 mm |
| TEL-10022 Aluminum Test Block with Protractor Scale | $176.00 |
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TEL-10023 Polyoxymethylene Test Block with Protractor Scale
This Polyoxymethylene test block also comes on a holder with a protractor scale and is used to examine the spread of transverse waves in plastic and reveal the elastic constants of polyoxymethylene (POM) such as its shear modulus, modulus of elasticity and Poisson ratio.
| Protractor scale: | 360°, 5° divisions |
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| POM block dimensions: | 70 mm x 45 mm x 10 mm |
| Test plate dimensions: | 104 mm x 75 mm x 50 mm |
| TEL-10023 POM Test Block with Protractor Scale | $176.00 |
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TEL-100251 Pair of Reflection Blocks
Fine-tune your studies of sound by measuring attenuation as a function of frequency and multiple echoes from this polished polyacrylate block. A 4 MHz transducer (U10017) is especially suitable for such measurements. An echo pattern comprising at least 3 echoes is recorded, and the spectra of the individual echoes analyzed. The result of the analysis is a shift in the average frequency toward lower frequencies, due to a stronger attenuation of the signal's high-frequency components. Dimensions: 80 mm x 40 mm x 10 mm
| TEL-100251 Pair of Reflection Blocks | $29.00 |
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TEL-10026 Set of 3 Cylinders
These polished polyacrylate cylinders are used to ascertain the speed of sound and the attenuation of ultrasonic waves in transparent acrylic. Measurements can be performed in reflection mode or through-transmission mode. Dimensions: 40 mm x 40 mm Ø 80 mm x 40 mm Ø 120 mm x 40 mm Ø
| TEL-10026 Set of 3 Cylinders | $69.00 |
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