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Power modules
G.R.A.S. Sound & Vibration A/S
It provides polarization voltage for the transducer, ensuring that the microphone gets the charging voltage it needs.It provides supply voltage for the microphone preamplifier. The preamplifier acts as a unity gain impedance converter. It provides a certain amount of line drive capability by providing a low output impedance and output current, making it possible to transmit the signal from the transducer to the Power Module without significant degradation.A power module can provide amplification or attenuation to the signal, thus making it possible to fine tune the measurement chain to the signals being measured and the hardware being used.Selectable filters make it possible to exclude unwanted noise from the measurement, e.g. wind induced noise from outdoor measurements.Overload detection makes it possible to validate the measurements and is a useful tool in monitoring setups.When a Power Module with gain is used, you can use longer cables because of the power module's ability to deliver current.A Power module introduces electrical isolation
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BJT Voltage Preamplifier
SIM911
Stanford Research Systems, Inc.
The SIM910 and SIM911 are low-noise, programmable preamplifiers which are ideal for a wide range of small signal applications. The primary differences between the two models are their input impedance and input noise.
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Low Noise Pre-Amplifiers
Low Noise Pre-Amplifier and companion external low noise amplifier (LNA) are used to amplify low level microwave signals. The Pre-Amplifier contains an AC/DC power supply, internal low noise amplifier, and a bias tee to source a DC bias voltage on the RF input connector.To overcome cable loss between the test antenna and the Pre-Amplifier assembly, a remote low noise amplifier (LNA) is mounted directly onto the 10 GHz antenna. A bias tee inside the Pre-Amplifier chassis powers the remote LNA through the coax cable interconnecting the pre-amplifier and the 10 GHz test antenna.
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Preamplifiers
A.H. Systems'' Preamplifier line is an excellent choice with a rugged design, no hassles with soldering your own power leads and they improve overall system sensitivity by at least 20 dB. All of A.H. Systems'' Preamplifiers come with a 12-volt (or 15-volt) DC regulated power source. A low voltage indicator confidently allows you to power the amplifier with your own external 12-volt DC battery. This makes it a convenient choice for field measurements. See table below for amplifier specifications.
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Precision Current Preamplifier
SIM918
Stanford Research Systems, Inc.
The SIM918 Current Preamplifier is ideal in applications in which the input offset voltage must be kept to a minimum. The DC voltage difference between the two inputs (current input and voltage bias) is accurately measured every 2 seconds, and is nulled.
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1 MHz Bandwidth Voltage Preamplifier with Bandpass Filter
EC6081 mk2 - preamplifier
The EC6081 mk2 (VP2000) is a 1MHz bandwidth voltage preamplifier with bandpass filter that is designed for uses in conjunction with piezoelectric hydrophones. VP2000 offers excellent low-noise performance over the entire frequency range; and adjustable gain selection. A range of 12 high-pass and 12 low-pass filters are available, these allow ideal band pass filter settings.
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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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Low Noise Voltage Preamplifier
1201
The Model 1201 Voltage Preamplifier with Remote Gain Programming Option (06) is usable in both computer controlled and maual applications requiring uncompromising performance.
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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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LISN & Voltage Probes
All commercial LISNs include an artificial hand connection and a transient limiter. This adds a 30dB insertion loss. A 30dB pre-amplifier is included which can be connected in the RF output feed to return the insertion loss to 0dB. The Voltage Probe requirement is covered by our PLIP (Power LIne Interference Probe). This fully meets the requirements of CISPR16, but has additional features:*Fully galvanic isolation between input and output (>1kV), for the safety of operator and analyser!*Shrouded safety clips for attachment to the line to be measured.*Filtered frequency response matched to Band A and B.*Current limiting on the output.*Visual indication of high voltage input.
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Current Sensors
Our current sensors were designed for a simple, customer-specific construction of niobium wire wound magnetometers, gradiometers or preamplifiers for small current or voltage signals.
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Low-Noise Voltage Preamplifier
SR560
Stanford Research Systems, Inc.
The SR560 is a high-performance, low-noise preamplifier that is ideal for a wide variety of applications including low-temperature measurements, optical detection, and audio engineering
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Multi Channel Analyzer
BOSON
Baltic Scientific Instruments, Ltd
Spectrometric device BOSON acquires and displays spectra with overlapping by energy up to 1000 timesNo resolution deterioration at operation in the beginning of spectrum energy rangeStable operation with preamplifiers of TPR type with output voltage swing up to +/- 10 V and reset duration up to 250 usAutomated P/Z adjustmentImproved dead time correctionSoftware-based spectrum stabilizationSetting and control of all parameters using colour LCD display with touch screenComplete remote control of Boson via software on PCAuto BLRAnalogue time dependent shapingSpectrum stabilizationDead time correctionOperation with preamplifier TPR
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The Golden STM
*Golden (chemically resistive) vibration isolated STM body with implemented preamplifier*Computer with PCI board based SPM controller *Anfatec Scan & Anfatec Present*19“ STM controller (extra low noise 24 bit converters)*HV display for z-direction*High voltage amplifiers for the x-y-tube scanning*Optional: PC controlled bi-potentiostat and electrochemical cell
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Linear Array Detector Cards
X-Card 0.2 to 2.5mm
A product family of high performance linear X-ray detector cards with preamplifier ASICs. The preamplifier ASIC converts the charge output from the photodiode array into voltage with serial output for easy integration with readout electronics. Can be arranged end-to-end to form large linear detector arrays.
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Electronic Instruments
The ORTEC range of modular electronics includes instruments in NIM formats as well as other modular instruments, such as photomultiplier bases, preamplifiers and other accessories. ORTEC also offers modular instruments for pulse height spectroscopy, fast timing, counting, high voltage power supplies and other special functions.
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AC-Powered, AC Voltage Monitor, Adjustable
VMA
NAI’s VMA is a field-adjustable, AC-Powered, AC Voltage Monitor used to monitor voltage characteristics of single- or three-phase power lines. This allows normal operation of system loads when the power-line characteristics are within pre-determined limits.High and low voltage limits, and "pick-up" and "drop-out" time delay are field-adjustable. The VMA voltage monitor is ideally suited for rugged defense and industrial applications.
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JFET Voltage Preamplifier
SIM910
Stanford Research Systems, Inc.
The SIM910 and SIM911 are low-noise, programmable preamplifiers which are ideal for a wide range of small signal applications. The primary differences between the two models are their input impedance and input noise.
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AC-Powered, AC Voltage Monitor
VAA/VQA
NAI’s VAA and VQA are AC-Powered, AC Voltage Monitors used to monitor voltage characteristics of single- or three-phase power lines. This allows normal operation of system loads when the power-line characteristics are within pre-determined limits. These voltage monitors are ideally suited for rugged defense and industrial applications.
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Preamplifier
Is designed for the amplification of measuring signals, e.g. weak signals of near field probes with high resolution.
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Current Preamplifier
1211
The model 1211 Current Preamplifier was designed to provide all of the features required of a modern laboratory preamplifier. It measures cur rents with full scale sensitivity ranging from 10 to 10 amperes.
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Microphone Preamplifier
426B03
Performance: Nominal Microphone Diameter:1/4"Frequency Response: (0.1 dB) (re 1 kHz)5 to 126000 Hz5 to 126000 Hz Frequency Response
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Preamplifiers
Is an electronic amplifier that converts a weak electrical signal into an output signal strong enough to be noise-tolerant and strong enough for further processing, or for sending to a power amplifier and a loudspeaker.
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External Pre-amplifiers
Although all Spectrum A/D cards have a very powerful input section with a highly configurable input amplifier and a variety of input ranges it is sometimes necessary to have additional external amplifiers if the signal to acquire has an extremely low level. Spectrum offers a range of perfectly matching external amplifiers to cover such cases. These powerful amplifiers have been rated using the Spectrum cards and offer best performance together with high amplification rates.The amplifiers are simply connected between the signal source and the Spectrum A/D card input and can be manually switched between different settings using small lever keys. All amplifiers allow the offset compensation by using an adjustable screw.
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350 MHz Preamplifier
SIM914
Stanford Research Systems, Inc.
The SIM914 350 MHz Preamplifier contains two wide-bandwidth, DC-coupled amplifiers, each with a gain of 5 (14 dB). Its fast rise time, low noise and excellent DC accuracy make it an ideal instrument for amplifying signals like those from photomultiplier tubes and photodiodes.
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Microphone Preamplifier
426A11
1/2-inch ICP preamplifier with gain and filter switches (for prepolarized microphones)ICP(R) low noise preamplifier with gain, filters, and TEDS
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Preamplifiers
Preamplifiers recognize the extremely low amplitude AE signal produced from AE sensors, and convert the signals into amplified and usable forms. As applications and testing conditions vary, project needs may change as well. Physical Acoustics offers an entire line of preamplifiers for a variety of testing requirements. Operating in conjunction with our specialized AE software, preamplifiers also moderate signal size during the data collection process, helping to produce accurate results.
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Microphone Preamplifier
426B31
Performance:Nominal Microphone Diameter:1/4" Frequency Response:3.98 to 126000 Hz3.98 to 126000 10.0 to 126000 Hz10.0 to 126000 HzElectrical Noise (A-weight)3.8 TEDS CompliantYes
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RX Pre-Amplifier System
RAM-34
The RAM-34 is a complete pre-amplifier system designed primarily for the low bands 160M thru 40M. It has inputs for four receive antennas and internal 3-pole bandpass filters for 160M, 80M and 40M. In addition to the pre-amplifier, it has a step attenuator that togetherwith the amplifier stage provides gains from -20 dB to +20 dB in 5 dB steps. This allows equalizing the signal levels between the antenna inputs. Gain settings are memorized for each antenna on each band. Different types of receive antennas have different signal levels and the gain memories eliminate the need to adjust the receiver or pre-amplifier when switching between the antennas.
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Preamplifiers
LNA Series
Low noise amplifier with 12.5 dB of gain covering the nominal frequency range 1 MHz to 3 GHz and can be used in the range from 200 kHz to 4 GHz. With its high gain and low noise figure, it will significantly increase the sensitivity of virtually all spectrum analyzers and other RF measuring instruments. All measuring instruments have a 'noise figure', which is a measure of how good the instrument is at measuring low level signals, the lower this figure, the better, although the lowest signal level will still be governed by the measurement bandwidth. A typical spectrum analyzer may have a noise figure of 20 dB or more, whereas a typical receiver may have a noise figure of 10 dB. The preamplifier has a noise figure of typically 4 dB, significantly enhancing the low level performance of such instruments, enabling signals that were previously masked by noise to be seen.
