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Voltage Controlled Crystal Oscillators
VCXOS
Voltage Controlled Crystal Oscillators (VCXOs) are used for fine adjustment of the operating frequency and are normally used in conjunction with a phase locked loop.
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Gas Analyzers
Independent Handheld 5 Gas Analyzer or use with MODIS™ Link, VERDICT® and VERUS® Bluetooth® link. Fully Portable 5 Gas Analyzer, go anywhere, use anywhere 110 V AC and 12 V powered Internal rechargeable battery, up to one hour of use Ideal for road testing and mobile use Measures exhaust emissions for CO, CO2, HC, O2, NOx and AFR/Lambda Provides an instant assessment of an engine vehicle exhaust and catalytic converter MODIS, VERDICT® and VERUS® Link for enhanced real-time viewing Setup required with included software on USB stick Gather all the evidence required for effective and accurate vehicle diagnostics on one screen in real time View, graph, save and recall data Monitor and reduce vehicle emissions, improve driveability and fuel efficiency There are 255 memory locations in the analyzer to track and print data for the same or many different vehicles Compatible with gasoline, CNG, propane and diesel fuel types Annual calibration and sensor replacement performed at Crystal Lake Northern Repiar enter Meets required industry standard
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Spatial Light Modulators
Spatial Light Modulators (SLM) are used as adaptive optical elements that modulates light spatially in amplitude or phase. We offer devices that are based on either reflective (LCOS) or translucent (LCD) liquid crystal microdisplays.
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*Laser Pyroelectric Energy Sensors
Pyroelectric sensors for measuring repetitively pulsed energy at up to 25 kHz. These sensors use a pyroelectric crystal that generates an electric charge proportional to the heat absorbed. The response time of the pyroelectric sensor depends on the time it takes for the heat to enter the crystal and heat it up. For metallic type pyro detectors, this time is tens of μs and thus the metallic type can run at a high repetition rate. For the BF and BB type, the response time is milliseconds with a correspondingly lower repetition rate. Ophir pyroelectric detectors have unique and proprietary circuitry that allow them to measure long pulses as well as short pulses and work at a high duty cycle, i.e. where the pulse width is as much as 30% of the total cycle time.
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Vacuum Meters
Portable meters for absolute vacuum pressure measurements in hospital labs, crystal growing, solvent recovery, distillation, and rotary evaporation.
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Phase-Locked Crystal Oscillator
PLXO Series 0.9” x 0.9” x 0.25”
*Compact Surface Mount Package *Excellent Phase Noise and Stability *Configurable for any application
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Generator Insulation Resistance Tester
WA2660
Wuhan Sangao Electrical Test Installations Limit Co.
WA2660 series insulation resistance testing instrument is special use for internal water cooling generator's measurement test. Meanwhile, can also be used in laboratory or field insulation test.The output current is greater than 25mA,Maximum output voltage is 2500V.With high precision micro current measurement system, digital boost system.Only need a high-voltage line and a signal line connecting the sample can be measured.Automatic measurement, the results from the large screen liquid crystal display, and the results are stored.
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Single Channel High Voltage Linear Amplifier
A600
The A600 is a general purpose broadband linear amplifier having a fixed amplification of 100 times and capable of bipolar high voltage output of 300V. Any functiongenerator or arbitrary waveform generatoror any othe signal source with amplitude up to 3 V can be used as an input device. The amplifier's output is linear from DC up to megahertz range. It can be used in a wide range of applications, for example to drive piezo actuators, MEMS, OLEDs, liquid crystals, etc.
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Oscillators
Precision Test Systems is increasingly becoming a world leader in ultra low phase noise (ULN) crystal and rubidium oscillators. We also have recently launached a new range of low G sensitive oscillators. For more information on our Low G range.
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Oscillators
TCXO
A TCXO is a emperature compensated crystal oscillator. The basic building block for a TCXO is a VCXO with approximately 50 ppm deviation range and a temperature sensitive network. This temperature sensitive network (temperature compensation circuit) applies a voltage to the varactor diode that corrects the frequency of the VCXO at any temperature within the operating temperature range.
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Multi-Protocol Serial Card
PCM485
The PCM485 is a multi-protocol serial card that supports RS-422 or RS-485 communications in a single 5V PCMCIA Type II card. The PCM485 uses a crystal controlled oscillator which permits precise selection of baud rates from 50 to 115,200.
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Photometer
Spectra Candela II
The Spectra Candela II (Model C305) is a compact and easy to use light meter provides an easy, economical means of making highly accurate measurement of indoor and outdoor light levels. Measures foot-candles, lux. Measurement results displayed on Electroluminescent backlit custom liquid crystal display (LCD).
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Oscillators
OCXO
The OCXO is an oscillator which is temperature controlled (ovenized crystal controlled oscillator). This type of oscillator has a temperature controlling circuit to maintain the crystal and key components at a constant temperature. OCXO''s are typically used when temperature stabilities on the order of 1 x 10-8 or better are required. While this type of oscillator has a tenfold improvement over a TCXO for temperature stability, the OCXO tends to be higher in price and consumes more power.
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Digital Panel Meter
ST-312V (ST-312mV)
Standard Electric Works Co., Ltd
● 3 1/2 digit liquid crystal display.● 200mV and 2V full scale input sensitivity.● Single Battery operated 9V supply or ±5V DC power supply (Dual supply).● Built-in low battery indication and automatic polarity indication.● Decimal point selectable.● Low power dissipation Typically less than 20mV.● High input impedance (> 1M ohm).● Guaranteed zero reading for 0 volts input on all scales.● True differential input or single-ended input.● Self mountable with optional mounting bezel.● Low cost high performance.● EN 50081-1 EN 50082-1 EN 55022 EN 61000-4-2 IEC 801-3
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Frequency Counter (225MHz - 18GHz)
S43180
S43180 series high-precision frequency counter is a high-precision frequency measurement instrument. It has a frequency measurement resolution of 10 bits per second. The whole machine scheme adopts countdown technology and digital interpolation technology to realize the high-precision measurement of the instrument. It has measurement functions such as frequency, period, frequency ratio and powerful mathematical statistics operations (maximum value, minimum value, average value, PPM, standard deviation, Allan variance).S43180 series has reliable performance, complete functions, high measurement accuracy, wide frequency measurement range, high sensitivity, large dynamic range, high cost performance and easy to use. It is especially suitable for frequency measurement in scientific research and measurement fields such as aerospace, crystal oscillators, and components.
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Femtosecond Terahertz Spectrometer
Pacifica
Terahertz spectroscopy and microscopy are becoming a powerful tool in biology, medicine, semiconductor physics and in many applicaitons. Designed for obtaining THz spectra by using of THz pulses generated by femtosecond laser in oriented ZnTe crystal.
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RF & Microwave Crystal Oscillators
A Crystal Oscillator is an oscillator which uses the resonance property of a quartz crystal to create an electric signal at a particular frequency. Compare Crystal Oscillators from the leading manufacturers on everything RF. Select a type and then use the parametric search tool to narrow down on a list of products from multiple manufacturers. Compare products, Download datasheets and get quotations.
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Microscopic Melting Point Meter
DRK8029
Shandong Drick Instruments Co., Ltd.
Determination of the melting point of the substance. Mainly used for the determination of drugs, chemicals, textiles, dyes, perfumes and other organic crystal, the microscope. Measured either by capillary method, and the slides are available - coverslip (hot stage method).
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voltage controlled crystal oscillator
VCXO
A VCXO (Voltage Controlled Crystal Oscillator) is a crystal oscillator the output frequency of which is controlled by adding an external control voltage via a frequency control input on a variable capacitance component such as a varactor diode connected in parallel to a load capacitance (CL). Epson VCXOs are divided into two types according to Voltage-Frequency (V-F) characteristic slopes depending on the AFC (Automatic Frequency Control) input configuration of the VCXO. One is a VCXO with a positive V-F slope and the other is a VCXO with a negative V-F slope. Please note that the input voltage of a control circuit will vary according to the individual type, as shown in Figs. 3 and 4. Epson's VCXOs are capable of either, depending on the customer's preference. Epson's VCXOs have been increasingly used for broader applications such as slave oscillators in phased-lock loops, or frequency modulators. Among the above types, a VCXO combined with a TCXO is called a VC-TCXO , respectively. These components have the merit of delicately controlling their output frequency electrically.
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Oscilloscope
PDS-7062
Bandwith 60~100MHz. The 500MS/s real-time sampling rate. 2 or 4 channels numerals save. Cursor read-out function. Five automatic surveys functions. Regulator back light resolution, high contrast gradient colored liquid crystal display. RS232 correspondence port
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Electro-Optic Modulators
Thorlabs’ selection of electro-optic (EO) modulators includes free-space and fiber-coupled LiNbO3 modulators. Free-space amplitude, phase, or resonant modulators can operate at speeds up to 100 MHz. We also offer liquid crystal EO modulators for speeds up to 2.5 kHz. Fiber-coupled intensity, phase, or IQ modulators for speeds up to 40 GHz can be driven by our EO modulator drivers. A modulator bias controller is also available for use with fiber-coupled intensity modulators.
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Large Range Resistivity Tester
HS-SFRT
HS-SFRT silicon filament resistivity tester is an advanced silicon cylinder resistivity tester, which can measure silicon filament, silicon phosphorus ingot, silicon boron ingot, seed crystal and so on. As it eliminates Peltier effect, Seebeck effect, minority carrier inject effect and so on, So it improve the accuracy greatly. The testing resistivity ranges from 0.0005Ω·cm to 50000Ω·cm. It is accurate, stable and convenient and a good friend to Siemens polysilicon material producer, SH4 polysilicon material producer, UMG polysilicon material producer and so on.
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PXI-6683, TCXO, GPS, IRIG-B, IEEE 1588 PXI Synchronization Module
782110-01
TCXO, GPS, IRIG-B, IEEE 1588 PXI Synchronization Module—The PXI‑6683 timing and synchronization modules synchronize PXI and PXI Express systems using GPS, IEEE 1588, and IRIG‑B to perform synchronous events. The PXI‑6683 can generate events and clock signals at specified synchronized future times and timestamp input events with the synchronized system time. The PXI‑6683 features an onboard temperature-compensated crystal oscillator (TCXO) that can be disciplined to GPS, IEEE 1588, and IRIG‑B for long-term stability. You also can use the PXI‑6683 to route clock signals and triggers with low skew within a PXI chassis or between multiple chassis, providing you a method for synchronizing multiple devices in a PXI system.
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Piezo-Electric Measurement Trainer Module
Unitech Scales And Measurements Pvt. Ltd
PiezoElectric Trainer comprises of piezoelectric crystal mounted inside housing and fitted on a base plate. Digital indicator is supplied to indicate the vibrational force.
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Bimetal Thermometer
BT
Series BT Bimetal Thermometers offer accurate, reliable service even in the toughest environments. These corrosion resistant units are constructed from stainless steel and are hermetically sealed to prevent crystal fogging.
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USRP Software Defined Radio Reconfigurable Device
The USRP Software Defined Radio Reconfigurable Device is built on the LabVIEW reconfigurable I/O (RIO) and universal software radio peripheral (USRP) architectures. It includes a powerful FPGA for advanced DSP that you can program with the LabVIEW FPGA Module. The device includes 2x2 MIMO transceivers or four-channel superheterodyne receivers, supporting center frequencies from 10 MHz to 6 GHz, with up to 160 MHz of instantaneous bandwidth. The USRP Software Defined Radio Reconfigurable Device also optionally includes a GPS‐disciplined oven-controlled crystal oscillator (GPSDO), which provides greater frequency accuracy than temperature- compensated crystal oscillators. Prototyping applications include LTE and 802.11 prototyping, spectrum monitoring, signals intelligence, military communications, radar, direction finding, and wireless research.
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PXIe-6614, 5 V, 8-Channel, Precision Reference PXI Counter/Timer Module
782353-01
PXIe, 5 V, 8-Channel, Precision Reference PXI Counter/Timer Module—The PXIe‑6614 is a high-precision counter/timer module that performs encoder position measurement, event counting, period measurement, pulse-width measurement, pulse generation, pulse-train generation, and frequency measurement. It features eight counter/timers, digital debouncing filters, and TTL/CMOS‑compatible digital I/O. The PXIe‑6614 offers industrially rugged features for a wide array of applications such as automotive/aerospace, industrial/motion control, and manufacturing test. Measurements are highly accurate and precise over longer periods of time because of the oven‑controlled crystal oscillator (OCXO) in the module.
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Avalanche Photodiodes
These avalanche photodiodes (APDs) are silicon photodiodes with an internal gain mechanism. As with a conventional photodiode, absorption of incident photons creates electron-hole pairs. A high reverse bias voltage creates a strong internal electric field, which accelerates the electrons through the silicon crystal lattice and produces secondary electrons by impact ionization. The resulting electron avalanche can produce gain factors up to several hundred.
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UHP Moisture Analyzer
5910
Using quartz crystal technology for speed, accuracy and calibration stability, the 5910 moisture analyzer is designed for ultra-high-purity (UHP) gas analysis in continuous monitoring and analytical cart applications. The 5910 is sensitive to changes in moisture concentration of less than 500 parts per trillion by volume (pptv), resulting in an accuracy of better than ±100 pptv, or ±10% of the reading.
