The minispec mq20 Polymer Research System prepared for high or high/low temperature extension :
• 20 MHz TD-NMR system, especially for in-situ temperature dependent studies up to 200 °C.
• minispec mq-Series are flexible TD-NMR Analyzers and can potentially also be used for other applications, of course depending upon system configuration.
The minispec mq20 Polymer Research System accommodates sample tubes of 10 mm outer diameter and consists of:
minispec mq20 control unit (NF series) with selective 20 MHz transmitter, E1452110_01, consisting of:
• Electronics Unit Housing: EMI-shielded, CE-conform, closed housing, maintenance-free, air-cooled, wide-line power supply, LEDs for convenient diagnosis (power-on, connection).
• Central Processor Unit (CPU): Embedded CPU with real-time processor unit, dynamic RAM and Flash-ROM for firmware. 100 Mbit Ethernet adapter to host PC. Fully featured remote control via minispec software.
• Direct-Digital RF Frequency Generation and Pulse Programmer: Frequency range, 5 - 65 MHz (tested and validated on NMR frequencies as supplied by Bruker) with 1 Hz stepping, resolution better than 1 ppm. Pulse programmer, 20 ns timing resolution, virtually unlimited number of pulse generations. Phase resolution better than 0.2°
• Receiver/Analog Digital Converter (ADC): Digital quadrature receiver, variable gain and variable digital filter. Highly linear 14bit digitizer with up to 12.5 MHz digitization rate (dwell time 80 nanoseconds). 2 x 32k Number of complex data points.
• 20 MHz Transmitter: Selective 20 MHz transmitter with 225 W output power.
• Software included: the minispec software for data acquisition for Microsoft Windows including daily check, update setting, status logging, autoprobe recognition of plug-and-play probes, and suitable minispec application pools, fitting to the proposed minispec hardware.
minispec mq20 magnet, 0.47 T, 20 MHz, 25 mm air gap, E1402220, consisting of:
• 20 MHz, 0.47 Tesla minispec magnet system with 25 mm air gap.
• Compatible with a wide range of 20 MHz probes for proton and flourine containing samples as well as for variable temperature and pulsed field gradients.
• magnet temperature control with digital PID control, pre-selection of magnet temperature (range 35 °C to 45 °C). Factory setting is 40 °C. Temperature stability better than 0.01 °C. Fast magnet pre-heat mode for rapid warm-up.
• EMI-shielded, CE-conform Housing with zero maintenance. Built-in sample storage compartment (up to 18 mm sample diameter) and LEDs for convenient diagnosis (on-temperature, connection).
• optical sample detector, based on optical technology for reliable and interference-free sample-in triggering and automatic launch of the minispec TD-NMR acquisition. Software configuration active/passive.
20 MHz Probe Assembly H20-10-25RH2 for mq20, E1408180:
• 1H, suitable for sample tubes of 10 mm outer diameter
• compatible with magnet system with 25 mm air gap and 0.47 T magnetic field strength
• ratio probe (short dead time)
• absolute measurement (long spacer): filling height 10 mm, 0.6 ml sample volume, ratio measurement (short spacer): filling height 40 mm
• temperature range from - 100 °C to + 200 °C in combination with Bruker's variable temperature units for high or high/low temperature
• matching daily check sample (one for absolute and one for ratio measurements)
• 20 MHz Pre-Amplifier.
• suitable for ratio measurements.
minispec cart on wheels for mq and mq-one systems, E1405240.
Recommended to place the minispec (''mq'', ''mq-one + PC'') onto
