Jandel Engineering Limited offers the Universal Probe for use in making both four point probe measurements and 3-point spreading resistance measurements. The maximum sample size is 76mm. There is an X-Y stage offering micromanipulation over 25mm for use in targeting small samples or for micro movements during spreading resistance measurements. All four probe needles are individually adjustable for load and the needles can be individually replaced by the end user.
Jandel Universal Probe Station
| Specifications | |
|---|---|
| Max. sample size | 76mm diameter |
| Max. sample thickness | Samples up to 4mm thick can be measured |
| Loads | 10-100g user adjustable on each needle |
| Manual control | Press button for contact, lift lever to reset |
| Simple set up | Single wire connects the probe stand and measurement electronics |
| X-Y Stage | Micrometer controlled over X-Y 25mm |
| Needles | User replaceable needles |
| Light shield | Hinged light shield covers entire measurement apparatus |
Note: 3-point Spreading resistance measurements are a specialist area of measurement which require careful preparation of samples and in depth knowledge of the measurement process. Unfortunately we are NOT able to advise on sample preparation and measurement process for this type of measurement.
Want to know more?
If you require any further information or have an enquiry contact us
Product FAQs
Who is Jandel Engineering Ltd?
Jandel Engineering was established in 1967. Prior to founding Jandel Engineering, Managing Director John Clark worked for A & M Fell in London. It was at this company that the first commercially available four point probe head, the 'Fell' probe head, was designed by John Clark and a colleague. Since this original design many improvements have been introduced.
Why use Jandel probes?
Jandel Probes offer the accuracy and perfection of more than 30 years experience. Tip radii and probe spacings are checked by interferometer and video inspection for certainty of accuracy. Spring loadings are checked by electronic force gauge.
Unique Standard specifications include:
1) Upper and lower guides are jewelled
2) Solid tungsten carbide needles for superior durability and accuracy
3) Teflon insulation giving minimum leakage
Why are there so many different characteristics?
Different users wish to probe different items, which means it is necessary to provide a wide range of characteristics. For instance someone wishing to measure a layer beneath an oxide would need sharp probes to penetrate the oxide layer, whereas a very thin metallic layer may require a much larger radius on the needles so that they do not puncture the layer. Similarly, some spacings are designed in order to help with the maths involved in working out resistivity, someone else may just require a very close spacing probe in order to fit all the probes on the sample.
What model of probe should I use?
Jandel has many different shaped probe heads. The best one for you depends entirely on your application and what machine (if any) you are using. Contact us with details of the probe you have now and we will let you know the best probe for you. Alternatively, if you wish to make a custom set up, we can help you to identify which probe will work best.