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Test Points:256 per module, expandable to 40,000+ by adding additional modules.
Test Rate (Intermittency Mode): Unlike ATE, continuity tester and virtually all other testing methods, there is no "test rate". The IFD-2000 uses an analog neural network to monitor "all test points" simultaneously and continuously "all the time", so there is no scanning and no missed events.
Test Rate (Scope and Sweep Modes):These two modes employ more of a traditional measurement methodology by reprogramming the neural network to act as a successive approximation device. In these modes, 16 test points are measured in parallel and resolved at one time. The time to resolution is somewhat signal dependant with about 20-40 measurements per second, per test point, being taken on average. In SCOPE mode, the 16 pins being viewed at one time are measured at a slower rate then are the background pins (those not on the view screen). Pins in the background are measured must faster rate but at a lower resolution (6 bits) to give as broad a coverage as possible for any possible anomalies in the UUT. In SWEEP mode, the only pins being measured are those on the screen and they receive as much time as needed to accomplish the task to the limits programmed by the operator.
Sensitivity(Intermittency Mode): Programmable. Detects ohmic events as low as 10 ohms and wide open intermittents as short 300 ns in duration.
Sensitivity(SCOPE
and
SWEEP Modes):In these modes the
sensitivity or resolution gets as low as .5 ohms on a grounded line so
that very small ohmic values can be read and analyzed. SCOPE uses
a fixed stimuli to track these lower levels while SWEEP uses a range of
stimuli to measure and resolve impedance changes in the higher ranges
(150
ohms to 1 megohm).
According to the AMP connector company, most intermittent events are ohmic in nature and it is a rarity that intermittent connections open up completely. Compare this to digital continuity testers, intermittency mode which employs 5 volt TTL digital signals that can only detect wide open events.
Drive Level: The drive level is a steady state, DC voltage, programmable from 0 to -3.5 volts over 256 steps.
Dry circuit testing requires that stimuli signal levels not exceed 100 mv. The IFD-2000 is capable of providing these signals through a simple, setup prcedure.
Digital continuity testers employ 5 volt TTL signals that preclude dry circuit testing. These digital pulses can also be attenuated when passed down long multiconductor wire harnesses due to interelectrode capacitance.
Background noise Rejection: While testing for intermittent event durations in the tens of nano seconds has been reported using other systems, it has required the use of specialized coaxial interface equipment and magnetic shielding in a laboratory environment to eliminate EMI interference which can cause false events.
The inherent, neural network design of the IFD-2000 swallows EMI interference, even at the most sensitive test levels. No special interface precautions or magnetic shielding is required when testing in noisy work environments where most testing takes place.
Connection to UUT: Interface to the Unit Under Test (UUT) is through common D-50 male connectors. Each of 5 test connectors on the IFD-2000 contain 48 test pins and 2 ground returns, while the 6th connector contains 16 test pins and 34 ground pins.
No expensive or hard to find interface connectors are required.
Testing Modes:The IFD-2000 has 4 testing modes, Intermittency, Analyze, Scope and Sweep.
INTERMITTENCY: Tests for intermittent connectivity in the higher/micro-break regions.
ANALYZE: Tests to insure that all the connections are
comparable
to a standard GOLD unit. This could be called our "continuity" test.
SCOPE: Tests for slow changing/drifting type
intermittencies
and very low ohmic values.
SWEEP: Traces impedance signatures over a broad range of stimuli ranging from audio to RF. Tests transformers, LVDTs, capacitors, filters, networks, etc.
Interface to host computer: The IFD-2000 connects to the host computer via an ISA bus, IO-port adapter card and a D-37 cable.
Power requirements: 120 volts, 50-60 hz at less then 1 amp. Special power requirements can be accomodated by exchanging the internally mounted switching power supply.
Computer Requirements: IBM compatible, VGA display, 1 meg. disk space, 4 meg. RAM, 2 available ISA slots for IO-port adapter and sound card. For intermittence testing, any model will work, but for other testing modes, a 486/66 or faster is recommended.
Operating System: MS-DOS or as a DOS program running under Windows for maximum flexibility and testing control.
IFD-2000 Software: The tester's user-interface is written in an open, interpreted language for maximum user adapatabiliy, flexibility and customization.
The interface is fully automatic via "predictive menus". It also includes on-line help and a built in editor for Map file creation and various other utilities.
Testing results may be printed out and/or saved to disk at the end of testing. Customized templates which document test results and parameters are adapted to accomodate any documentation needs.
All testing files and generated files are in ASCII format and can be readily created or imported into other word processors for report generation and other specialized needs.
The actual testing modules are written in compiled basic for maximum testing speed and accuracy.
Documentation: A 90 page IFD-2000 user/training manual accompanies the tester, which fully describes and demonstrates the various testing modes and utilities.
A programming manual of over 300 pages comes with the tester, allowing the user to modify the test program or to write additional programs.
Accessories:
The Bench-top model includes a computer adapter board along with a switch box and grounding connectors for training and self test.
The Rack-mount model includes the same basics as the Benchtop. In addition, it includes a built in computer and keyboard, computer sound system and remote headphones. The included monitor is mounted externally to allow adjustment for optimal viewing angle.
The Portable comes with a transportable computer, with TIFTA display and built in sound, also included are remote headphones and padded carrying case. This model also includes the basic self test accessories as the Bench-top.
Contact
Us
E-Mail: info@usynaptics.com
or
Universal Synaptics Corporation
1801 West 21st Street
Ogden, Utah 84401
Tel. (801) 731-8508
Fax (801) 731-8509