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2011 Short Form Catalog
Instruments by Course Title
mini-index
diode laser spectroscopy
earth's field nmr
earth's field nmr gradient/field coil system
fabry-perot cavity
faraday rotation
hall effect
magnetic force
magnetic torque
magnetic torque's magnetic force balance
modern interferometry
muon physics
noise fundamentals
optical pumping
power/audio amplifier
pulsed/cw nmr
pulsed nmr
quantum analogs
signal processor
/lock-in amplifier
sonoluminescence
torsional oscillator
two slit interference, one photon at a time
two slit's cricket
individual parts
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(Information on TeachSpin's CURRENT Pulsed/CW NMR)
Pulsed NMR PS1-B (Discontinued*)
introduction | the instrument | experiments
| specifications| prices
*Although the original PS1 series PULSED NMR SPECTROMETER is no longer being built, we maintain these pages for the convenience of our users and continue to support the instruments. As far as we know, all of them are still in action, including the very first one, which was delivered to Carnegie-Mellon University in the spring of 1994.
Current Pulsed/CW NMR Designed for Teaching
PS1-B Specifications
Magnet
- Field: 3,600 Gauss (nominal)
- Homogeneity: 0.1 % over 1 cm³ spherical volume
- Temperature stability: 4 Gauss/°C
Pulse Programmer
- Two Independent Pulses: A and B
- Pulse width: 1-30 µs
- Pulse sequence: Single A, Multiple B; 1-99 pulses
- Digital time delay: 0.1 ms-9.9 s in 10 µs increments
- Repetition time: 1 ms-10 s
- Internal, external, manual trigger
- Meiboom-Gill gate pulse
- Scope trigger on A or B pulse
Oscillator/Amplifier/Mixer
- Frequency: 15.000 ± 1.0 MHz, 10 Hz resolution
- Accuracy: 0.005 %
- Stability: 1 ppm over 103 s
- Leakage (pulse off): 80 db maximum
- B rotating 10 Gauss, 5 µs for p/2 pulse
- Mixer input 10 mV rms full-scale
Receiver
- Sensitivity: 8 µV rms full-scale
- Equivalent input noise: 1.5 µV rms
- Gain range: 60 db (power)
- Dead time: 5 µs
- Time constant: 0.01-0.3 ms
- RF output, detected output, blanking input
Sample Probe
- Crossed-coil design: Helmholtz configuration for transmitter, axial receiver coil
- Probe mounted on mechanical stage to locate sample in appropriate region of the magnet gap
- Two-dimensional (x-y) motion, parallel to pole pieces.
Instrument Case
- Power supply, two open slots for additional accessories.
Also included
- Complete set of coaxial cables,
- 50 sample vials, vial storage case and standard calibrated samples.
- Instructional manual with representive data, student experiments and extended references.
Accessories Available
- Circuit Diagrams
- B1 - Pickup Probe to measure rf magnetic field diretly
- Dummy Sample Probe to simulate precessing nuclear magnetism
- Carry Handle for Electronics Case
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