DFG-1000 | Digital Function Generator |  | The Digital Function Generator DFG-1000 provides the Mössbauer Driving System with the reference signal, which determines the waveform of the source motion. The signal is generated digitally. This results in a source motion, which is completely synchronous to the channel sweep of the multichannel analyser.
DFG-1000 provides eight waveforms: SINE
TRIANGLE (CONSTANT ACCELERATION)
CONSTANT VELOCITY (with 5 - 10 - 20 and 40% slope)
F1, F2 (individual , optional waveforms) In the CONSTANT VELOCITY mode the output signal has selectable sinusoidal slopes for a minimum of vibration disturbance (c.f. figure) |
 |
SPECIFICATIONS | Inputs | ADO-INPUT | Pulse slope | |  or  |
| Pulse width | | > 100 ns | Ext. Freq. | External frequency control | | 0-10 Hz |
| Pulse Height | | ~ 5 V |
| Outputs | Analog Output | | | 20 Vpp, (600 Ω) | CHA/START | Pulse Shape: | |  or  (switchable) |
| Pulse Height | | ~ 5 V |
| Pulse Length | | 1 μs |
| Impedance | | 50 Ω | CHA  /Start  | Pulse Shape:  | | |
| Pulse Height | | ~5 V |
| Pulse Lenght | | 1 μs |
| Impedance | | 50 Ω | Count enable | 5 V signal during the linear part of the analog output signal. | | |
| Impedance | | 50 Ω | Sign | 5 V signal during the positive part of the analog Output signal. | | |
| Impedance | | 50 Ω |
| Indicators |
| Dual colour light indicator for MODE | | |
| Controls | Channels | Front panel 6-step rotary switch for selecting the number of channels | | 128 - 256 - 512 - 1024 - 2048 - 4096 | Mode | Front panel 8-step rotary switch to select the waveform of the analog output signal: - SINE - TRIANGLE - CONSTANT VELOCITY (5 - 10 - 20 - 40 % slope) - F1, F2 (optional) | | | Frequency | Front panel 10-turn potentiometer to adjust the frequency within the range | | | Multichannel Scaling | Front panel toggle switch for switching the channel sweep on or off | | |
| Physical |
| Single width NIM module | | | Weight | 0.6 kg | | |
| Power Requirements |
| + 6 V 700 mA + 12 V 10 mA ± 24 V 50 mA or (autom. switching) + 12 V 700 mA ± 24 V 50 mA | | |
|
|
|
|
|