IISO9001 acquired. |
January, 2005 |
■Broadband Fourie Transform NMR Spectrometer PROTⅢ series |
Recently, NMR technology has not only been used for analyses of materials in physics and chemistry, but has also applied to NMR imaging in medical and life sciences. |
THAMWAY has long provided various universities and national research institutions with RF equipment for NMR systems, such as modulators, receivers and pulse generators to meet the customer's needs. |
Now we also provide the Broadband Fourie Transform NMR Spectrometer as the PROTⅢ Series, achieving total system NMR spectrometers. |
Transmission and receive part of PROTⅢ are stored in the 19 inches rack case. |
The component parts of PROTⅢ series |
【Computer unit】 |
Various kinds of pulse sequences can be set with a PC and its data is transferred to a pulse generator. After that, the computer unit shifts into receiver mode, A/D converts a signal output from the receiver, and displays measurement results of T1, T2 and FFT after acquiring data. You can print them out and save the data, including measurement conditions, to a disk. |
【Pulse generator unit】 |
Various pulse sequences for pulse NMR can be set with a PC. (USB connection) |
【Modulator unit】 |
The unit modulates an RF signal inputted from a reference signal generator and outputs it according to the pulse sequence set by the generator. At the time of pulse modulation, the phase of signal carrier can be set to 0deg/ 90deg/ 180deg/ 270deg. |
【Receiver unit】 |
This unit consists of a preamplifier and a receiver. The preamplifier offers high gain of 30dB, low noise, and a very short dead time. The receiver offers high gain and a short dead time as does the pre-amplifier. A coherent received signals is obtained by a reference signal from a phase shifter. Received IF signal after frequency convertor is being processed by digital. |
* 【Pulse generator unit】,【Modulator unit】and【Receiver unit】are in one case. |
【Remote controller】 |
This unit can control Frequency, TX output level, Receiver gain, receiver filter, Reception phase and our N146 series power amplifiers for NMR. |
【Switch unit】 |
This unit consists of a cross diode and wideband divider. The cross diode does switching signal of send and receive and reduces noize. The wideband divider provides the probe with an RF signal to the probe and an NMR signal to the pre-amplifier. Using a duplexer can suppress passage loss. |
【Power amplifier unit】(Option) |
You can used in combination with Our power amplifiers for NMR like N146 series. |
【SUPERCONDUCTING MAGNET】(Option) |
This is a magnet system designed to generate a homogeneous magnetic field and lower the consumption of liquid helium for solid state NMR and other magnetic measuring. |
Model | PROTⅢ | ||
Frequency range | 1MHz - 800MHz | ||
Frequency resolution | 10Hz | ||
Reference frequency stability | 10MHz±1.0ppm (0℃ - 50℃) | ||
Transmission unit | |||
Modulation | Pulse | ||
Phase modulation | Quadrature phase shift keying (0,π/2,π,3π/2) | ||
Level adjustment | LEVEL setting 0 - 1023(Linear voltage) | ||
Receiving unit | |||
Preamplifier gain | 30dB | ||
Preamplifier NF | Less than 2.5dB | ||
Receiver gain | 0 - 90dB/1dB step +40dB(fixed) | ||
Output | SIN/COS ±1.0V (High impedance) | ||
Dead time | Less than 6µs (1MHz) | ||
IF frequency | 25MHz | ||
Reference phase adjustment | 360° | ||
Phase resolution | 0.1° | ||
Video filter | 100Hz - 1MHz/19 steps | ||
A/D conversion Unit | |||
Received IF signal input Freq. | 25MHz | ||
Operation clock | 100MHz division ratio 128 max | ||
Resolution | 16bit | ||
Remote controller | |||
Frequency setting | Manually set arbitarilly (Digital display) | ||
Output power setting | Manually set arbitarilly (Digital display) | ||
Output power | Digital display | ||
Reflected power | Digital display | ||
Receive gain | Manually set arbitarilly (Digital display) | ||
Receive video filter | Manually set arbitarilly (Digital display) | ||
Reference signal phase | Manually set arbitarilly (Digital display) | ||
Pulse generator | |||
Output channel | TRG/TX1 monitor, For amplifier TX2/METER, AUX1 - 4 | ||
Pulse width | 20ns - 1ms | ||
Resolution | 10ns (By pulse width) | ||
Hardware integration count | 65,535 max | ||
Repetition time | 1ms - 30,000s | ||
Pulse setting item | Comb pulse width/interval/number, 1'st/2'nd pulse width, Tj/τ time, Repeat time, Average number, QPSK, Tj or τ increase time | ||
Display function | Oscilloscope, Integration range, Integration value/log plot, FFT, Integral numerical value | ||
Size, Weight | |||
Main body | W482xH132.6xD450mm 10.5kg(approx.) | ||
Remote controller | W270xH66.2xD181.3mm 1.5kg(approx.) | ||
Switch unit | W300xH53xD130mm 1.0kg(approx.) |