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The ITU T-K44 recommendation describes a series of surge impulses for telecom applications. Besides the ITU requirements, similar impulses are specified in the FCC part 68 standard for telecom terminal equipment.
ITU tests are divided into Basic and Enhanced levels. Basic level tests are disturbance tests where the Equipment Under Test(EUT) should recover from the impulse disturbance. Enhanced level tests cause destruction of the EUT. The purpose of these tests is to ensure the equipment does not become a fire or fragmentation hazard. 10/700us impulses are applied to telecom lines at up to 6kV for enhanced level. 8/20us current impulses test protection devices mounted in telecom interfaces and the Combination Wave Generator(CWG) is used on power interfaces.
EMC PARTNER offer a range of test equipment to meet these requirements.
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For exponential current impulse ECI 1/20us, 4/10us, 8/20us and lightning current impulse LCI 10/350us applications with impulse current amplitude up to 200kA.
Used for quality control testing and type tests on SPD (Surge Protection Devices).
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General description :
The 9718 Current Pulse Generator is an ideal fire set for airbag squib, detonator and pyrotechnics initiator testing. The instrument provides adjustable current signals up to 25 amps through 8 digitally controlled, load resistant independent outputs. Output pulse widths and delays are unique to each channel and can be precisely controlled from 0.1 to 100 msec in 200 ns steps. The 9718 Current Pulse Generator also provides a TTL Sync output to T0 - particularly useful as a reference source or trigger for cameras or other equipment.
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SGSA impulse test systems can be used to generate impulse voltages simulating lightning strokes and switching surges.
The stage energy is 5 kJ. Max. charging voltage is 800kV.
Applications covered include testing according to IEC, ANSI/IEEE as well as other national standards.
The basic system can be upgraded in various ways for special tests and for greater ease of operation. A number of additional circuits and components allow optimising the impulse test system for tests on different kind of high voltage test objects.
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The T564 is Highland Technology's latest in its series of mini embedded digital delay generators. Starting with an internal or external trigger, the module produces four output pulses programmable for delay and width, with nanosecond-to-second range and picosecond jitter and resolution. The T564 introduces three unique features to digital delay generation: "Queued Updates" allow time settings to be changed without corrupting ongoing timings; a "Train" function allows multiple pulses to be generated from each trigger; and the "Frames" feature allows complex delay sweeps and pulse scenarios to be pre-loaded and rapidly executed, making the T564 ideal for laser timing, radar simulation, and ultra-high-speed imaging.
The T560-1 is the standard, packaged version, usable in many OEM applications and as the evaluation unit for custom versions. It uses the technology developed for the Highland model V851 (VME module) and P400 (benchtop) digital delay generators, with basic TTL/CMOS input and output levels and advanced logic.
The T560 accepts an internal or external trigger and generates four precise output pulses, each user programmable in time delay and width. It is ideal for laser sequencing, radar/lidar simulation, or sequential event triggering. It is easily mounted within systems enclosures, allowing short cable runs and reliable, unattended operation.
T560 Embedded small-size delay generator
http://www.highlandtechnology.com/DSS/T560DS.html
T564 Embedded programmable DDG w/meta function
http://www.highlandtechnology.com/DSS/T564DS.html
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Model 575 Digital Delay / Pulse Generator
Delay Generator Versatility: Timing Resolution- RMS Trigger Jitter-
Adjustable Delay- Adjustable Width- Selectable Sync Source- Negative Delays- Independent Delay Properties, Width Properties, Amplitude and Rate on each Channel- Duty Cycle, Multiplex, Wait-N-Pulses, Dual Triggers, Dual Gating
Features
250pS Delay & Width Resolution
200pS channel Jitter / 800pS RMS Ext. jitter
Independent clock rates for each channel
Clock In & Clock Out
Programmable (Ethernet/USB/RS-232/GPIB)
Combine Electrical and Optical Outputs
Dual Inputs (2 Gate / Gate+Trig / 2 Trig)
Applications
Trigger, Gate, Delay, Pulse or Sync
Sync to an External Clock (up to 100 MHz)
Master/Slave or Multiple Unit Slave
Pulse Pick (up to 100 MHz)
Combine Pulses on One Channel
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The P400 is a benchtop digital delay and pulse generator that generates four separately programmable delay-and-width outputs. The P400 can generate delays up to 1000 seconds in 1ps increments, and is capable of a high repetition rate of 10MHz. Applications for the P400 include laser timing, ICCD camera systems, ATE systems, and radar testing.
Triggering - P400 triggers include internal, external, remote, or line. The internal DDS rate generator may be programmed from 0.01Hz to 10MHz in 0.01Hz steps. The external trigger features selectable trigger level, slope, and termination impedance. Line trigger is enabled via an external AC line adaptor. The P400 may also be triggered manually or from the remote RS-232 or Ethernet interfaces. Trigger gating and burst facilities are standard.
Timebase - The standard P400 timebase is a precision TCXO temperature-compensated crystal oscillator. An optional ovenized oscillator is available for applications requiring extreme accuracy and lowest jitter. Mutiple P400s may be synchronized to each other, or locked to an external 10 MHz source.
Onboard Help - An extensive help system explains each pushbutton, input, output, and setting on the 4-line front-panel display.
Menus - Each function of the P400 has a dedicated single-level control menu invoked by an associated pushbutton. Data entry may be via numeric keys or by the spinner knob.
Remote Control - All P400 parameters may be programmed remotely using standard RS-232 or optional Ethernet interfaces.
Features:
* 4 delay and width outputs
* 1 ps resolution
* Up to 1000 s delay>
* 25 ns insertion delay
* <10 ps RMS typical jitter
* 10 MHz rep rate
* Programmable trigger threshold
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Specifications:
Mini Manual pulse generator for frontpanel built in.
Pulses: 100
Channel: A + B
Supply voltage: 5... 24V DC
Output circuit: Push-Pull
Protection: IP 50
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General description :
The Model 9518+ Digital Delay Pulse Generator with 8 independent outputs is designed to provide cutting edge, yet cost-effective solutions to generate and synchronize multiple pulses for a variety of applications. The delay and pulsewidth for each channel are independent and digitally controlled which makes this pulse generator ideal for situations that require synchronizing a number of different events. Flexible operating modes allow complete control of pulse outputs, including continuous, duty cycle, burst and single shot with external trigger/gate. Advanced features, such as Multiplexing, allow the timing of all or several channels to be combined for complex pulse patterns. For automated test equipment, complete control of the instrument is provided through the standard RS232, USB and GPIB Interface.
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General description :
The Model 9618+ Digital Delay-Pulse Generator with 8 independent outputs is our most affordable digital delay/pulse generator - Ideal for applications that require moderate precision and multi-channel capability. The delay and pulsewidth for each channel are independent with 2-20 volt output range, allowing the user to drive a wide range of load circuitry. This pulse generator offers several operating modes, including continuous, burst, single shot and external trigger/gate, allowing complete control of the pulse outputs. With precise control of the delay periods and quick recall of up to 6 system configurations, the instrument is instantly ready for use. For automated test equipment, complete control of the instrument is provided through the standard RS232 interface.
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General description : High-quality laser timing and laser synchronizing at affordable pricing, the 9530 Pulse Generator is the first pulse generator on the market.
The 9530 Pulse Generator incorporates laser timing and laser synchronization to effectively produce any series of events. The 9530 is ideal for laser timing applications with eight independent outputs, dual laser trigger/gate inputs and external laser clock reference input.
The 9530 can accept a low amplitude 20mV, 100MHz clock frequency, which offers the ability to synch directly to a laser photodiode signal and allows for system timing with low jitter laser timing.
The 9530 can be used as a master time base to other delay generators or equipment with a 50 Ohm load. Precision laser timing is the foundation for the 9530 Pulse Generator - offering 50pS internal jitter and 250pS Delay and Width resolution.
The following features allow the users to set up an intricate experiment or synchronizing multiple timed events: Ethernet/USB interface, complex burst sequences, Divide-by-N, Setting Profiles, Dual Triggers, Clock Divider, Pulse Picking and Negative Delays
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General description :
The model 9528 Pulse Generator takes pulse generator and digital delay technology to new levels. Cost effective, yet extremely capable, this instrument provides solutions to generate and synchronize multiple pulses and triggers for a wide variety of applications from simple to complex.
The 9528 provides up to eight fully independent digitally controlled channels having width, delay, rate and amplitude control on each output. For automated test sequencing, all common computer interfaces are available such as RS232, USB, GPIB and Ethernet.
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The 60 Pole Pair Magnet Wheel is a ferro-magnetic nylon wheel with 120 alternating magnetic poles infused within the material. It is 3-3/4 inches in diameter, with the magnetic surface on the outside circumference of the wheel. The magnets are rectangular and are evenly spaced with very small non-magnetized spaces between them. The wheel is typically mounted on a shaft, up to 3 inches in diameter. These shaft mount wheels are custom bored to slide snugly onto the shaft, and are secured to the shaft with two set screws. Many standard hub sizes are in stock, including popular NEMA C Frame Motor sizes. These Wheels are also available in end-of-shaft mount versions.
Features:
- Custom Mounting Hubs
- Produces 60 or 120 pulses per revolution
- Over the Shaft Mount or End-Of-Shaft Mount
- NEMA-C Flange Ring Kit Compatible
- Non-Contact Sensing
- 10,000 rpm Maximum Speed
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The GP1550 series features:
- pulse widths from 10nS to 10S
- delays from 0nS to 10S with up to 6-digits resolution.
- Output levels are from -10V to +10V, with pulse amplitudes from 0.5V to 10Vp-p into a 50 Ohm load.
The GP1612H features:
- variable pulse widths from 10 ns to 10 s,
- delays from 0 ns to 10 s with up to 6 digits resolution
- adjustable output levels from -8V to +8V, with pulse amplitudes from .1V to 16Vp-p into 50 ohms load (.2V to 32Vp-p into open circuit).
These Pulse Generators also feature selectable complementary pulse and double pulse, in continuous, triggered, gated and counted burst modes.
They allow selection of predefined amplitude and offset for critical stimulus and testing of major semiconductor technologies as TTL, CMOS and ECL.
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Unlike Function Generators, Pulse Generators are wholly dedicated to generate pulses and for control of pulse related parameters such as pulse width, rise/fall time etc. Various Pulse Generators are differentiated by their pulse repetition rate and the control capability of their pulse width, delay and transition times.
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