Kelvin
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Product
Diode Scanner
SC924
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Frothingham Electronics Corporation
The SC924 is an electromechanical device for testing diodes loaded on burn-in boards.A set of Kelvin contacts is indexed from diode to diode. The contacts move over a range of 24 inches in the X direction and the table holding the boards moves over a range of 9 inches. This allows scanning of multiple burn-in boards or boards with multiple rows of diodes.
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Product
Controlled Atmosphere
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KP Technology offer a range of Kelvin Probes that work in a controlled environment including automatic control of relative humidity within the Kelvin Probe housing and integrated nitrogen atmosphere control.
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Product
Cryogenics Testing Lab
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DPACI Cryogenics Test Laboratory has been operational for over a decade providing test data, temperature cycling, simulation, and analysis for our customer’s rigid deep space component qualification requirements. Our firm provides our customers with most accurate test data taken at temperatures ranging from 10°Kelvin to 400°Kelvin.
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Product
CableEye 4-Wire Calibration Verification Board | Cable & Harness Testers
CB52
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The CB52 is intended for periodic calibration verification of the Kelvin 4-wire resistance measurement module – an optional, add-on module that may be purchased with any new hipot system, or added to an existing high voltage tester as an upgrade.
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Product
Contact Probes
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Rika Denshi Group Contact Probes - specialty probes including fine pitch testing, high frequency testing, high temperature testing, kelvin test, and high current test, as well as standard probes for 0.4mm-, 0.5mm-, 0.65mm-, 0.8mm-, and 1.0mm pitch.
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Product
Ambient Single Point Kelvin Probe System
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This single point Kelvin Probe System operates under ambient conditions and is small enough to be placed in a customized glowth box. The probe head operates with an oscillating membrane and can be easily exchanged. The preamplifier is integrated inside the probe head.
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Product
Temperature Monitor
SIM922A
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Stanford Research Systems, Inc.
The SIM922A has a programmable, precision 10 µA current source to provide sensor excitation. Results can be displayed in either kelvins or volts.
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Product
Transformer Winding Resistance Tester
KRI 9310
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KRI 9310 adopt Kelvin four-wire testing method, which effectively eliminates the influence of the resistance of the test line on the test results. It can be able to increases the current to 10A by which can test extremely low resistance to 0.01 Ω(such as amorphous alloy, Copper-nickel, nickel-chromium-iron, iron-chromium-aluminum etc). For the tested objects with high resistance value (CT/PT), the instrument can extend the range to 20 kΩ，so the wide resistance test range enables KRI9310 can cover 80% of the power transformer products on the market and switchgear bus-bar cable etc. The power of the tester use the built-in rechargeable lithium battery that can test hundreds of transformers by one time charging.
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Product
Scanning Probe Microscopes
SpectraView 2500
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* Ultra-low noise SPM* Colocalized nanochemical analysis by IR, THz, Raman, AFM* Cantilever probes are completely transparent* Versatile configurations: Kelvin Probe chemical potential, electrical, thermal and photon force
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Product
Manual Flying Probe Test Systems
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They provide flexible measurement technologies like Kelvin and high voltage tests in combination with low tooling costs. atg Luther & Maelzer offers a wide range of different systems starting from standard systems with 8 heads up to oversized systems with 24 test heads.
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Product
Digital 125 Amp Battery Load Tester
6033
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• Heavy load enables the 6033 to detect bad batteries missed by other electronic testers• Automatically computes the CCA of the battery under load• Kelvin connected digital meter displays the following values:• Current Battery Voltage• Maximum Voltage reading• Minimum Voltage reading• Automatic load cycle• PATENTED• Made in USA of US and Global Components
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Product
Scanning Kelvin Probe Microscope
VS-SKP
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The Kelvin Probe experiment uses a nondestructive method to determine the relative work function difference between the probe and the sample. Work function describes the energy required to liberate an electron from the surface of a conductor; electrochemists often interpret this as the difference from an electrode’s Fermi Level, average energy of electrons, and that of vacuum.
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Product
Cryocooler
CryoTel® DS30
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The CryoTel® DS 30 Stirling cryocooler offers efficient, reliable, compact and high power cooling to the market in the temperature range of 35 to 250 Kelvin. The DS30 was optimized for applications in which SWAP (size, weight and power) and reliability are concerns. The DS30 consumes considerably less power than other cooling alternatives and requires no maintenance, making it ideal for strategic as well as industrial applications. Both the cold head and the pressure wave generator can be mounted in any orientation. Application examples include semiconductor manufacturing, large infrared detectors, RF receivers or antennas, astronomical telescopes, laser cooling, high-temperature superconductivity, cold traps, and others.
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Product
Short Circuit Locator for Power Cables
A910
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The A910 is a short circuit locator designed for fault location in power cables. The instrument measures the ratio of the resistances of the two sections of failed conductor using a four-wire "Kelvin" connection, thus eliminating errors associated with contact resistances of the test leads. With the A910 you can determine if the cable has more than a short and locate the first and the last fault. The instrument locates fault with an insulation resistance up to 5 Mohms in cables that have a total resistance greater than 5mohm (approximately 90 m of 300 sqmm cable) and less than 30 kohms. The distance to fault is measured as a percentage of the total length of cable and is displayed on a large LCD display.
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Product
Medium Kelvin Clip Lead
16089B
Accessory Kit
Measure odd-shaped components that you cannot measure using conventional fixtures
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Product
LCR Measurement
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LCR component bridge with built-in test fixture and limits comparator with binning. Micro-ohmmeter with four terminal Kelvin clip leads. High basic accuracy, rechargeable battery operation.
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Product
Ultra-High Vacuum
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KP Technology offer a range of Kelvin Probes that work under ultra-high vacuum conditions, choose from single-point or scanning probes to add to your existing vacuum chamber, customize the UHV corner cube or consider the newest addition to the range, the Ф4 ultra-high vacuum scanning Kelvin Probe system.
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Kelvin Probe Systems
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Kelvin probe measures the work function difference between the tip and the sample when in thermoequilibrium state (a), and measures the electrical potential when the sample is illuminated (b), which is the sum of the difference in workfunction and internal/external-applied voltages.
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Product
Semicon Test Probes
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Fine pitch, 0.20 mm [8 Mil] - single & double ended - non-rotating - kelvin - RF - high performance.
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Product
Cable Length Meters
CLM-1000E
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*Measures these metric wiresizes: 0.75, 1, 1.5, 2.5, 4, 6, 10, 16, 25, 35, 50, 70, 95,120, 150, 185, 240, 300, 400,500 mm2*Eight user-programmable settings for other sizes*Powered by (6) 1.5V AA batteries*Replacement calibration rods (pair) available as CLM-ROD, UPC 02721*Replacement Kelvin clips (pair) available as CLM-CLIPS, UPC 02722*Meters
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Product
Banana-Triax Adapter For 2‑Wire (Non-Kelvin) Connection
N1297A
Accessory Kit
The N1297 Series is a collection of banana-triax adapters for the Keysight B2900 Series precision source measure unit (SMU). It consists of both 2-wire as well as 4-wire connection requirements.
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Product
Kelvin Test Contactor/Probe Head
Gemini
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At 3.22 mm test height, the Gemini™ Kelvin test contactor is an excellent all-around spring probe with low inductance, high bandwidth, and excellent current-carrying capacity. The device under test (DUT) side tip design accurately maintains its 100 µm spacing for the life of the probe. Customers report typical probe life of 500 k to 800 k package insertions, or over 2M touchdowns at wafer-level test. The offset tip allows manageable board layout with a board-side spacing of 0.4 mm.Gemini Kelvin probes and contactors provide a first-rate solution that effortlessly makes reliable, true Kelvin contact for high-volume final test of both singulated packages and wafer-level devices. Gemini Kelvin is an ideal solution for devices such as power controllers, A-D and D-A converters, power amplifiers and audio and video circuits.
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Product
Pressure Transmitters For Industrial Applications
Series 21 Y
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KELLER AG für Druckmesstechnik
The Y-line transmitters have an extremely small temperature error. This is achieved using an additional circuit containing a temperature sensor that subdivides the temperature range into fields that are 1,5 Kelvin (K) wide.
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Product
Four Terminal Precision Resistors
AH
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A-H resistors are constructed with four terminal, isolated voltage and current connections(.i.e. Kelvin Connection) making them suitable for very precise current measurements, current limitations and current regulation in power units, current sources and electronic loads.
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Product
Micro-Ohmmeters
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Micro-Ohmmeter is an affordable 7 range, 4-Wire Kelvin based product that is used to test electrical resistance on a wide variety of applications including winding resistance, contact resistance, and component testing. The 720A micro-ohmmeter has an autorange feature (available with NSN package) and is compatible with an RS232C interface (OP-232). Thanks to its wide-range capabilities, ease of use, and CE mark, this micro-ohmmeter is used commonly across the globe.
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Product
Kelvin Test Contactor/Probe HEad
cPython
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cPython™ Kelvin contactors and probe heads provide superior electrical and thermal performance with significant cost savings. This makes cPython Kelvin ideal for lab and high-volume production test of analog and mixed signal integrated circuits – for applications such as power control, A-D and D-A converters, audio, video, power amplifiers, photonics, optical MEMS and sensors.cPython Kelvin probes are electrically isolated and mechanically independent force and sense paths for true Kelvin contact for taking accurate measurements, even under high current conditions. These robust probes provide hundreds of thousands of insertions or touchdowns, and a bandwidth up to 26 GHz.
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Product
Off-Set Kelvin Test Sockets
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This is an innovative and robust contact technology for making Kelvin contact to 0.5mm pitch QFNs. The contact uses a tip that is angled to one side, matched to an orientation that's flat on the tip. Two such contacts placed in opposition will touch the pad within 0.125mm. And because the tip is offset, the probe diameter is a robust 0.39mm and the load board pad pitch remains 0.5mm.
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Product
Turret Contactors
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Design available for all Turret handler models. Leaded and Leadless packages, device pitch down to 0.20mm for Kelvin and Non Kelvin testing on both thermal and ambient environment.
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Product
Current Sensing
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voltage-output, current-sensing amplifier family that integrates an internal shunt resistor to enable high-accuracy current measurements at common-mode voltages that can vary from 0 V to 36 V, independent of the supply voltage. The device is a bidirectional, low- or high-side current-shunt monitor that allows an external reference to be used to measure current flowing in both directions through the internal current-sensing resistor sensor. The integration of the precision current-sensing resistor provides calibration equivalent measurement accuracy with ultra-low temperature drift performance and ensures an optimized Kelvin layout for the sensing resistor is always obtained.
