Voltage Preamplifiers
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Product
Acoustic Emission Preamplifier
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The Acoustic Emission Preamplifier is a instrument designed specifically for use with acoustic emission sensors, which is used to boost the signals and filter out any noise or interference. With its advanced technical features and robust design, the QingCheng Acoustic Emission Preamplifier is the perfect choice for professionals seeking a high-performance acoustic testing solution.
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Preamplifier
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Is designed for the amplification of measuring signals, e.g. weak signals of near field probes with high resolution.
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High Impedance Preamplifier
1671
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The Model 1671 is a single ended low noise field effect transistor
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Externally Polarized Precision Condenser Microphones & Preamplifiers
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Externally polarized microphones set the initial standard for all acoustic test and measurement applications. They rely on a dedicated 200V power supply and specialized cables with 7-pin LEMO® connectors. Their straightforward design supports a wide product range. Often chosen as replacements for existing models or when prepolarized alternatives are unavailable.
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Product
NI-9201, ±10 V, 500 kS/s, 12-Bit, 8-Channel C Series Voltage Input Module
779372-01
Voltage Input Module
±10 V, 500 kS/s, 12-Bit, 8-Channel C Series Voltage Input Module - The NI‑9201 is an effective combination of channel count and speed at a low price for an economical multifunction system. The module features up to 100 V of overvoltage protection for errant signal connection or unexpected signals to the individual channels.
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Voltage Detectors
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Available with a digital readout or a simplified LED display Seaward's specialist range of voltage detectors have the versatility and durability to cope with all types of user demands.
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Voltage Detectors
JSC-88AW
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The JSC-88AW is a very reliable way to know for sure whether or not there is voltage downstream from the switches or breakers during power-offs. It dramatically increases the safety of personnel assigned to maintenance work on electrical equipment powered by three-phase voltage. As long as voltage is present downstream of the breakers, one or more (LEDs) of the JSC-88AW will stay lit. A simple visual inspection tells you whether the electrical system is in “Zero Energy” mode. In addition, this new device has been improved to enable resistance to voltage spikes (transients).
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Product
External Pre-amplifiers
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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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Product
Universal Preamplifier 14
UP14
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For Two Dimensional Magnetic Recording (TDMR) and Heat-assisted Magnetic Recording (HAMR) Headamplifiers. Universal Preamplifier 14 (UP14) is designed for TDMR and HAMR Head Amplifiers. With new Guzik RWA4000 TDMR, UP14 allows to process signals from three Read Channels. It also supports two high speed data channels for Write data and Laser data. UP14 has two channels for dynamic TFC control and allows to program TFC power per sector and close loop TFC power control in each channel. UP14 can generate two programmable modulation signals for write data and laser data with bandwidth up to 20 MHz. UP14 consist of two boards. The first UP14 RW Board processes high-frequency signals: read-back signals, write data and laser data. The second UP14 Control Board provides power, control and low-frequency signal generation: TFC, write data modulation and laser modulation.
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Preamplifiers
AH-series
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A broad mix of in-line preamplifiers and accessories are offered to enhance hydrophone measurements by increasing the gain, preserving the flatness response, extending the dynamic range, and minimizing reflections.
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Current Preamplifier
1212
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The Model 1212 Current Preamplifier is designed as a low cost, gerenal purpose, benchtop instrument to provide a high performance detection system for small ac and dc currents. The 1212 operates with a virtual ground at its input which mitigates unpredictable high frequency rolloff due to input cables and stray capacitance.
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Preamplifier
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The UBBV series are external, extremely low-noise broadband preamplifiers that can be mounted to any SPECTRAN spectrum analyzer. They are ideally suited for spectrum analyzers and oscilloscopes as well as antennas of all manufacturers and are supplied with extensive accessories.
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Current Preamplifier
1211
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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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Programmable Current Preamplifier
99539
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The Model 99539 is a modular, multi-channel current preamplifier with parallel, logic level, gain control input. It consists of circuit boards which plug into a 3 1/2" high by 19" wide rack chassis.
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Voltage Indicators
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*Measures voltage from 100V to 138kV line‑to‑line.*Can be used individually as voltage indicators or together for phasing operations up to 100 ft (30 m) apart.*Two LED displays are automatically synchronized during phasing operations.*Clear in-phase and out-of-phase indication.*Versatile for overhead and underground applications.*Capacitive Test Point and Peak Hold modes
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USB Preamplifier, 10 MHz to 4 GHz
U7227A
Amplifier
The U7227A, 10 MHz to 4 GHz USB preamplifier is designed to bring reliable gain and low noise figure to measurement systems improving the overall system performance and reduce systematic errors; a total solution to the X-Series signal analyzers to perform noise figure measurements.
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Voltage Meter
МН4В
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М-module МН4В is a mezzanine module designed to measure the voltage value of signals through four galvanically isolated channels (four-channel high-speed digitizer).
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Voltage Tester Pen
TOB-VT
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Xiamen Tob New Energy Technology Co., Ltd
Non Contact Voltage Tester Pen For High Voltage Testing. Non-contact AC voltage tester pen has high precision and accuracy, with compact and portable design appearance, and the double plastic shell is to ensure the safety of the users.
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Product
NI-9221, ±60 V, 800 kS/s, 12-Bit, 8-Channel C Series Voltage Input Module
783732-01
Voltage Input Module
±60 V, 800 kS/s, 12-Bit, 8-Channel C Series Voltage Input Module - The NI‑9221 performs single-ended analog input. The wider voltage range makes this module well suited for industrial-level, automotive, or even smaller-cell battery measurements. There are two connector options for the NI‑9221: a 36‑position spring‑terminal connector and a 37-position D‑SUB connector.
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High Voltage Tester
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The AC /DC High Voltage Test Set that we offer to our clients is widely used at electrical maintenance departments and workshops. It is chiefly used to perform routine maintenance of numerous electrical devices and equipment. Apart from that, this product is used to check the quality of insulation provided in any electrical device.
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Voltage Detector
PocketDetect LR
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Hachmann Innovative Elektronik
With a PocketDetect LR you have a highly specialized, miniaturized and easy-going voltage detector at your fingertips. A thorough self-test ensures reliable function. A permanently enabled interface-tester warns against defect interfaces or residual voltages, while the low-power long-term display mode secures live working.
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Voltage Rectifier
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A voltage rectifier, designed and manufactured by Monex GeoScope Pty. Ltd., has been added to the terraTEM suite of products. The voltage rectifier has been designed to provide 6 kW, 120 V, 50 A output and is the ideal rectifier to guarantee the necessary stable, ripple free current for the full range of Monex GeoScope’s transmitters. This includes the internal transmitters for the terraTEM24 (50 A, 120V), terraTEM (15 A, 24 V) and the terraTX-50 external transmitter (50 A, 250 V). In addition, the voltage rectifier outputs a clean, filtered 24 V suitable for powering either the terraTEM24 console or terraTX-50 console electronics. And the output stability of the voltage rectifier is not disturbed by the fast turn-off times available on the Monex GeoScope transmitters.
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Resets And Voltage Detectors
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ST’s reset and voltage detector ICs provide basic voltage monitoring (low-voltage detect POR-LVD function) and reset timing for power-on resets. These devices offer:
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Surge Voltage Generator
SSG 2100
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Cable fault location with the BAUR SSG 2100. Surge voltage generators are used for pre-location and pinpointing of high- and low-resistive as well as intermittent faults in power cables. The energy stored in a high-voltage capacitor is released at regular intervals or as DC voltage. The thus generated acoustic signal at the fault position can be recorded with a ground microphone and a universal receiver.* High surge voltage up to 32 kV* Continuously adjustable voltage* Voltage monitoring through kV meters with 3 measuring ranges* Automatic discharge unit
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Saluki SE4002 FET Input Preamplifier
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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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HIGH VOLTAGE MEGOHMMETER
MI-20KVe
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The MI-20KVe High-Voltage Megohmmeter is a truly portable device that allows the measurement of insulation resistances using test voltages up to 20 kV. It employs a state-of-the-art technology for the safe measurements of insulation resistances up to 4.000.000 MΩ with four test voltages: 5 kV - 10 kV - 15 kV and 20 kV. Readings are performed through an easy-to-read analogue indicator, having a broad scale.
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Voltage Maintenance Program
VoltRef
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VoltRef provides the power of automation formaintaining statistical control of the volt in yourlaboratory. This program controls a low thermalscanner and voltmeter to compare voltagestandards using the process recommended by NISTand other national laboratories.
