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Model 7124
Dual Phase Lock-in Amplifier
- No digital clock or switching noise present at the RCU connectors
- 0.5 Hz to 150 kHz operating frequency range
- Voltage and current mode inputs
- 1.0 MHz main ADC sampling rate
- 10 µs to 100 ks output filter time constants
- Dual Reference, Dual Harmonic and Virtual Reference operating modes
- USB, RS232, and Ethernet computer interfaces
Since their invention back n the 1960's, lock-in amplifiers have been used whenever the need arises to measure the amplitude and/or phase of a signal of known frequency in the presence of noise.
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Model 7270
Dual Phase Lock-in Amplifier
- 1 mHz to 250 kHz operating frequency range
- 1.0 MHz main ADC sampling rate
- 10 µs to 100 ks output filter time constants
- Dual Reference, Dual Harmonic and Virtual Reference operating Modes
- Internal data butter for recording instrument outputs at rates down to 1 µs per point
- USB, RS232, and Ethernet computer interfaces
The model 7270 sets a new standard for general-purpose DSP lock-in amplifiers.
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Model 7230
Dual Phase Lock-in Amplifier
- 1 mHz to 120 kHz (250 kHz with 7230/99 option) operating frequency range
- 1.0 MHz main ADC sampling rate
- 10 µs to 100 ks output filter time constants
- Dual Reference, Dual Harmonic and Virtual Reference operating Modes
- Internal data buffer for recording instrument outputs at rates down to 1 µs per point
- Ethernet, USB, and RS232 computer Interfaces
- Free LabVIEW driver
The model 7230 is a new concept in general-purpose DSP lock-in amplifiers.
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Model 7280
Dual Phase Wide Bandwidth DSP Lock-in Amplifier
- 0.5 Hz to 2 MHz operation
- Direct digital demodulation without down conversion
- 7.5 MHz main ADC sampling Rate
- 1 µs to 100 ks output time Constants
- Dual Reference, Dual Harmonic and Virtual Reference modes
- Spectral display mode
- Scanned probe microscopy
- Optical measurements
- Audio studies
- AC impedance studies
- Atomic force micorscopy
The model 7280 DSP lock-in amplifier is an exceptionally versatile instrument with outstanding performance.
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Model 7265
Dual Phase DSP Lock-in Amplifier
- 1m Hz to 250 kHz operation
- Direct digital demodulation without down-conversion
- 10 µs to 100 ks output time constants
- Synchronous oscillator output for input offset reduction
- Dual Reference, Dual Harmonic and Virtual Reference modes
- Spectral display mode
- Scanned probe microscopy
- Optical measurements
- Audio studies
- AC impedance studies
- Atomic force microscopy
The SIGNAL RECOVERY model 7265 uses the latest digital signal processing (DSP) technology to extend the operating capabilities of the lock-in amplifier to provide the researcher with a very versatile unit suitable both for measurement and control of experiments.
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Model 7225
Dual Phase DSP Lock-in Amplifier
- 1m Hz to 120 kHz Operation
- Direct digital demodulation with down-conversion
- 10 µs to 100 ks output time Constants
- Synchronous oscillator output for input offset reduction
- Harmonic measurements to 32f
- Low Profile (IRU)
- Chopped light measurements
- AC bridge measurements
- Audio studies
- AC impedance studies
- Vibration studies
- Thermal wave detection
The SIGNAL RECOVERY model 7225 offers a cost-effective solution to the researcher needing the performance provided by DSP demodulation but not requiring the additional features or higher operating frequencies of the models 7280 and 7265.
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Model 5210
High Performance Dual Phase Lock-in Amplifier
- 0.5 Hz to 120 kHz operation
- Voltage and current mode inputs
- Continuous full-scale sensitivity control
- Powerful fourth-order signal channel Bandpass, Low Pass or Notch filter
- Up to 130 dB dynamic Reserve
- Synchronous 15-bit ADC for lower input jitter
- Auger spectroscopy
- Feedback control loops
- Replication existing experimental setups
Over the past few years. the SIGNAL RECOVERY models 5209 (single-phase) and 5210 (dual-phase) have become the benchmark lock-in amplifiers against which others are judged.
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Model 5105
Dual Phase Lock-in Amplifier
- 5 Hz to 20 kHz operation (or single "spot" frequency up to 100 kHz)
- Low Cost
- Squarewave demodulation
- Adjusting low pass and high-pass signal channel filters
- Up tp 80 dB dynamic Reserve
- Chopped light measurements
- Multiple instrument systems
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