Yelo Ltd.
Yelo, founded in 1983, is a leading test equipment manufacturer that designs builds and supports test engineering solutions for a range of industries including; Photonics, Defence and Automotive. As well as this we manufacture bespoke test solutions for OEM's, CEM's and EMS.
- +44 (0)28 9335 7300
- +44 (0)28 9335 7305
- info@yelo.co.uk
- Trooperslane Industrial Estate
20 Meadowbank Road
Carrickfergus, Northern Ireland BT38 8YF
United Kingdom
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product
Test Fixtures & Jigs
A test fixture or test jig is the component containing the bed of nails used for testing the PCB or assembled product. It is powered and controlled by the Yelo Testpoint system which has test cards capable of providing multiple test conditions. This system also controls the probes used in the bed of nails, and relays test information back to the Testpoint system to be analysed.
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High Voltage Test Equipment
A hipot test is conducted by ensuring no current flows from one point to another on a circuit. A hipot test will take two conductors that should be isolated from one another and passes a high voltage between the two points. The current which flows between these points is then measured. If too much current flows, this would indicate that the points are not well isolated and the test will fail.
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Laser Diode Light Current Voltage (LIV) Test Instruments
The Yelo LIV test instrument allows LIV measurements to be taken from laser devices loaded into a Yelo module. This module can also be used with the Yelo Y1000L Low Power Burn-in system. The LIV test instrument has been designed for easy operation. Once powered on, and with laser supply enabled, the touch screen can be used to initiate, monitor and review measurements of laser devices.
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High Power Burn-In Test
Easily test the reliability of your high power laser devices with the Y2000H burn-in and life-test system. It will quickly identify defective laser devices so you can prevent them reaching your customers. Y2000H's full automation and expandable capacity helps you work through your tests more productively. And its user-friendly software makes testing your devices easier than ever.
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Laser Diode Life Test
Life-tests consist of the highly accelerated ageing, under controlled conditions, of a group of lasers taken as a representative sample. Optical degradation of the laser diodes is observed and recorded by precisely measuring changes in the laser's operating characteristics during the test. Life-tests are used for vendor qualification of the laser diodes during product development and can be conducted throughout the production life of the laser.
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PXI Test Instrumentation
The Yelo Pixi general purpose tester is a PXI based functional test system with in-circuit and continuity capability. Built into a free standing 19” rack is a PXI chassis, mass interconnect fixture interface, PC, flat screen and space for additional user selectable instrumentation.
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Laser Diode Testing
The low power series of burn-in and life test systems are designed to test the reliability of low power laser diodes up to 1 Amp in current. The modular design means they can test up to 2,048 lasers, however due to the flexibility of the system, it can be adapted to suit both low volume R&D environments and high volume production environments.
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Laser Diode Burn-In Testing
Laser reliability testing consists of a series of tests that laser diodes can be put under in order to ensure their reliability for post-production use. There are different types of tests that can be carried out and there are multiple measurements that can be taken in order to evaluate the reliability of the device. One of these tests is laser diode burn-in.
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Functional Testing of Printed Circuit Boards, Sub Assemblies and Finished Products
Testpoint
Yelo Testpoint is an extremely modular and flexible system, allowing you to scale to any size operation, and to add almost any new test requirements. Ideally suited to cellular manufacturing, the system can be used to complement an existing ATE, as a functional test add-on, or as a diagnostic work station. Its compact, space-saving construction has multiple interface positions to accommodate both horizontal and vertical connections.
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Laser Diode Characterization Testing
The Yelo Laser Diode Characterization system performs automated characterization of a laser device. The system will allow the operator to load a single packaged Laser device into a TEC controlled fixture mount. Each test station (LIV, Spectrum, Far Field/Beam Divergence) will then automatically align with the Laser Device in a sequential order and perform the automated tests required of each station.
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Test Software
Yelo Test Environment V5.0
The Yelo Test Environment (YTE) is an automated test environment developed by Yelo. Test sequences can be developed for multiple products and are tailored to customer needs and specifications. Flexibility in testing is a key benefit of the YTE and is provided to the user by allowing management of test sequence order. There is also the ability for the user to change the test limits or parameters for more or less stringent testing depending on requirements.
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Traveling Wave Tube Test System
Yelo has a wealth of experience in developing and customizing test systems for the Travelling Wave Tube (TWT) market. TWT testers feature specialized power supplies, measurement equipment, and comprehensive control and safety systems.A rugged PLC is used to control all voltages and perform all monitoring functions. User interface and datalogging functions are provided by a supervisory PC that is electrically isolated from the PLC. Power Supplies are solid state with optical fibre barriers to ensure that all control/monitoring is carried out at safe voltages, and with maximum noise immunity. All safety interlocks are hardwired, and the testers are equipped with emergency shutdown features for added security.
