Lock-in Amplifiers
measure a signal's amplitude and phase in noisy environments. Measure hi-res clean signals.
See Also: Optical Choppers
- Pickering Interfaces Inc.
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PXI Amplifier And Attenuator Modules
Pickering's PXI Amplifier and Attenuator Modules include our accurate DC to 3GHz programmable attenuator has a 1dB step resolution, allowing it to adjust signal amplitudes for optimum measurement by other devices. The other programmable attenuator available has a bandwidth between 10MHz and 6GHz available in triple or hex formats.
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Lock-in Amplifier
HF2LI
The Zurich Instruments HF2LI (high-frequency, 2 inputs) is a digital lock-in amplifier covering the frequency range between DC and 50 MHz. It features 2 physical input channels so that it can replace 2 devices in many measurement setups. The 128-bit digital signal processing delivers superior precision thus boosting both the noise performance and the dynamic reserve. With these unprecedented capabilities, the HF2LI brings lock-in amplification to a new level and enables new applications in a fre...show more -
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Lock-in Amplifier
Signaloc
Designed for use in Hinds’ Exicor Systems the Signaloc is now availaible for anyone who can use a dual-phase, analog, single frequency lock-in amplifier.
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Lock-in Amplifier
UHFLI
The Zurich Instruments UHFLI is a digital lock-in amplifier covering the frequency range from DC to 600 MHz. In addition of providing the highest operation frequency amongst all commercial lock-in amplifiers, the UHFLI also offers the lowest time constant of 30 ns for demodulation, resulting in a demodulation bandwidth of more than 5 MHz. The exquisite analog front end offers a spectacular noise performance of 4 nV/Hz which helps in many applications to keep the signal-to-noise ratios high while...show more -
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Lock-In Amplifiers
Anfatec's lockin amplifiers use a unique DSP technology which is only found in these instruments. High speed real-time data processing is combined with optimized analogue input stages. Fully digitally designed high quality filtering ensures an excellent suppression of background signals and an unsurpassed dynamic reserve.
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Lock-In-Amplifiers
Current and voltage inputWorking frequency up to 45 kHzAdjustable sensitivity, time constant and phaseLocal and remote controlCompact and EMI-shielded case
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Single Phase Lock-In Amplifier
SR510
Stanford Research Systems, Inc.
The SR510 and SR530 are analog lock-in amplifiers which can measure AC signals as small as nanovolts in the presence of much larger noise levels. Both the single phase SR510 and the dual phase SR530 have low-noise voltage and current inputs, high dynamic reserve, two stages of time constants, and an internal oscillator.
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Digital Quad-channel High-frequency Lock-In Amplifier -
eLockIn 204
Digital quad-channel high-frequency Lock-In Amplifier.
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Digital Quad-channel High-Frequency Lock-In Amplifier -
eLockIn 205
Being the top model eLockIn series, the eLockIn205/2 offers a very fast TCP/IP connection, ultra-fast DAC outputs of the measured signals and all signals supplied at BNC connectors.
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Digital Quad-Phase "DSP" Lock-In Amplifier -
eLockIn203
The eLockIn203 can be used as spectrum analyser, as oscilloscope, as sinus generator or as measurement control system.
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DSP Dual Phase Lock-In Amplifier
SR850
Stanford Research Systems, Inc.
The SR850 is a digital lock-in amplifier based on an innovative DSP (Digital Signal Processing) architecture. The SR850 boasts a number of significant performance advantages over traditional lock-in amplifiers?higher dynamic reserve, lower drift, lower distortion, and dramatically higher phase resolution.
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Saluki SE1022 DSP Lock-In Amplifier
SE1022 Digital Lock-in Amplifier provides an excellent performance within its bandwidth from 1 mHz to 102 kHz. With the advantage of the latest digital signal processing technology and high-precision 24-bit ADC, SE1022 can easily detect the phase and the magnitude of weak signals overwhelmed by various large noises. The performance of SE1022 is as good as other lock-in amplifiers brands, even better in some certain parameters, such as measurement accuracy, SNR, dynamic reserve. Otherwise, SE1022...show more -
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Saluki SE1201 DSP Lock-In Amplifier
SE1201 Small-sized Digital Lock-in Amplifier provides an excellent performance within its bandwidth from 50 mHz to 120 kHz. With the high-speed 4-core architecture, high-precision ADC and excellent analog performance, SE1201 can easily detect the phase and the magnitude of weak signals overwhelmed by various large noise. The performance of SE1201 is as good as other lock-in amplifiers brands, even better in some certain parameters, such as measurement accuracy, operating bandwidth, which meets the needs of scientific research and industrial application well.
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Saluki SE2031 DSP Lock-In Amplifier
SE2031 Digital Lock-in Amplifier provides an excellent performance within its bandwidth from 1 mHz to 10 MHz. With the advantage of the latest digital signal processing technology and high-speed 16-bit ADC, SE2031 can easily detect the phase and the magnitude of weak signals overwhelmed by various large noise. The performance of SE2031 is as good as other lock-in amplifier brands, even better in some certain parameters, such as measurement accuracy, SNR, dynamic reserve. Otherwise, SE2031 integrates some special functions like multiple harmonic measurement, which meets the needs of scientific research and industrial application well.
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Saluki SE2041 DSP Lock-In Amplifier
SE2041 Digital Lock-in Amplifier provides an excellent performance within its bandwidth from 1 mHz to 60 MHz. With the advantage of the latest digital signal processing technology and high-speed 250MSPS 14-bit ADC, SE2041 can easily detect the phase and the magnitude of weak signals overwhelmed by various large noises. The performance of SE2041 is as good as other lock-in amplifiers all over the world, even better than them in some certain parameters, such as measurement accuracy, SNR, dynamic reserve, which meets the needs of scientific research and industrial application well.
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Saluki SE1022D DSP Lock-In Amplifier (Dual-channel)
SE1022D Digital Lock-in Amplifier provides an excellent performance within its bandwidth from 1 mHz to 102 kHz. More importantly, SE1022D has dual independent input channels and dual independent high precision signal generators. Each input channel and signal generator can be used independently which means that the SE1022D is equivalent to two traditional lock-in amplifiers. Moreover, due to the twin symmetrical design, the two independent input channels and signal generators have ultra-high synchronicity, which meets the measurement requirements demanding extremely high synchronization.
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Lock-In Voltage Preamplifier
SR550
Stanford Research Systems, Inc.
The SR550 Voltage Preamplifier is designed to work with any SRS lock-in amplifier. Preamplifiers provide gain close to the experimental detector, before the signal-to-noise ratio is permanently degraded by cable capacitance and pickup
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Lock-In Voltage Preamplifier
SR552
Stanford Research Systems, Inc.
The SR552 Voltage Preamplifier is designed to work with SRS lock-in amplifiers, providing gain where it is needed most?right at the experiment. The preamplifier minimizes noise and pickup in the connecting lines and can reduce measurement time in noise-limited experiments.
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AC Susceptibility
The AC Susceptometer option uses a small primary excitation coil to apply an AC field to a sample (typically 1mT at frequencies from 0.1 Hz 10000 Hz). A pair of secondary pick-up coils positioned close to the excitation coils are used to detect the sample response. The resultant signal is measured using a Lock-In amplifier with the in-phase and out-of-phase components of the signal corresponding to the real and imaginary components of the AC Susceptibility of the sample. An additional compensation coil is used to eliminate background signals.
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Balanced Optical Receivers
For noise sensitive experiments, we offer balanced photoreceivers that suppress up to 50 dB of laser / source intensity noise in experimental set-ups. These balanced optical receivers with two well-matched photodetectors can eliminate the need for lock-in amplifiers and can make all of the difference when you are trying to detect a small signal in applications like absorption spectroscopy, or heterodyne detection.
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Detection Electronics
Our detection electronics portfolio comprises all the detection electronics elements required for the operation and automation of a high quality light measurement system, including photo-detector signal recovery and digitisation (with fully programmable DC, AC and lock-in amplifiers having current/ voltage inputs), high voltage supply, optical chopper control, detector thermoelectric cooler control and relay unit.
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Detection Electronics
Our detection electronics portfolio comprises all the detection electronics elements required for the operation and automation of a high quality light measurement system, including photo-detector signal recovery and digitisation (with fully programmable DC, AC and lock-in amplifiers having current/ voltage inputs), high voltage supply, optical chopper control, detector thermoelectric cooler control and relay unit.
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Measurement System for ESD Protection
SampleProtect
The SampleProtect measurement system is ready to go, and comes complete with Oxford Instruments’ Cryofree bottom loading cryostat – the OptistatDry BLV, Zurich Instruments’ MFLI Lock-in Amplifier, a specially designed ESD break-out box and high quality measurement grade cables. The patent-pending puck style mounting from Oxford Instruments provides safe installation of your samples. The MFLI 500 kHz Lock-in Amplifier (capable of 500 kHz demodulation as standard) with MF-MD multi-demodulator capa...show more -
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Oil and Grease Analyzer
LD-LOGA-A10
Oil and Grease analyzerLD-LOGA-A10is a tabletop analyzer with a sample testing range of0.12 mg/L to 840 mg/L. The unit displays and prints the sample spectra, position and wavenumber of the absorption peak. It features self-contained optical and electrical system withhigh degree integration. Testing data and spectrograms can be saved to hard disk forchecking and printing anytime Sensor signal processing uses lock-in amplifier circuitimproving the analyzer’s SNR and the minimum detection limit.
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Optical Chopper
These high stability variable frequency optical choppers each include a set of chemically blackened photoetched chopping discs. The mini chopper is an excellent choice for applications requiring a compact package. The chopping discs come in a variety of slot apertures and allow operation. Beam diameter is limited to 0.75mm when using the 200-slot disc and 1.0mm when using the 40 slot mini disc. The easy-to-interchange blades are made of non-magnetic, half hard brass and can be used in combinatio...show more -
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Photoluminescence & Electroluminescence Measurement System (PL/EL)
PL
PL/EL Measurement System includes Laser, Spectrometer, Lock-in amplifier, Optical Chopper, Sample Holder(PL/EL), PMT/CCD, Fiber, Optical optics, Optical Table, Refrigerator（low temperature）,Sample Chamber and related accessories;
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PID Controllers
Zurich Instruments offers PID controllers exclusively as upgrade options for lock-in amplifiers, impedance analyzers and boxcar averagers. Consequently, a number of different inputs can be chosen for the PIDs: the set of choices includes amplitude, phase, quadrature and in-phase components of demodulated signals, boxcar outputs, as well as auxiliary inputs and outputs.
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Power Meters
Rk-5700
The Rk-5700 Series Power Meters accept a wide variety of probes – pyroelectric, silicon, and thermopile – enabling them to perform absolute radiometry, total laser power (cw and average), and irradiance measurements from the UV to far-IR, pW to kW. Integrated lock-in amplifier circuitry allows for synchronous detection of chopped optical signals, improving both S/N ratio and background rejection. The dual channel Rk-5720 simultaneously measures Channel A, Channel B, and the ratio B/A. An IEEE-488 GPIB computer interface, Analog Outputs, Background Cancel, and Autorange are all standard features.
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Saluki SE4002 FET Input Preamplifier
The SE4002 is a low-noise, ultra-high input impedance preamplifier with excellent common-mode rejection. It is designed to work with any Saluki digital lock-in amplifier. The preamplifier minimizes noise and pickup in the connecting lines and reduces measurement time in noise-limited experiments.
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Scanning Electrochemical Systems
The VersaSCAN is a single platform capable of providing spatial resolution to both electrochemical and materials-based measurements. Each VersaSCAN is based on a common high-resolution, long-travel, closed-loop positioning system mounted to a vibration-resistant optical base. Different auxiliary pieces are mounted to the positioning system. These ancillary pieces (e.g., an electrometer, piezo vibration unit, or a laser sensor) provide functionality to the positioning system for different scanning probe experiments. VersaSTAT potentiostats and Signal Recovery Lock-in Amplifiers are integrated via ethernet control to make accurate measurements of these small signals.
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Spectral Response SystemsQuantum Efficiency SystemsIPCE Measurement Systems
QE system provides electronics and software designed for fully automated measurement of external quantum efficiency of solar cells. All systems include probes and a fixed plate sample stage for samples up to 150 mm x 150 mm. The main system components include: custom designed software, measurement electronics, and computer system (Windows 8 operating system). The measurement involves focusing monochromatic light to a spot on the device under test, then accurately measuring the photon flux and cu...show more
