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技术文章/ARTICLE
Ossilas四点探针系统技术资料下载
点击次数：1571 发布时间：2024/3/22 10:31:47
Ossilas四点探针系统技术资料下载 http://www.app17.com/c153392/products/d13318785.html
简单介绍：
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详情介绍：
Ossilas四点探针介绍
Part of the Institute of Physics award-winning Ossila Solar Cell Prototyping Platform, the Ossila Four-Point Probe System is an easy-to-use tool for the rapid measurement of sheet resistance, resistivity, and conductivity of materials.
Built with a high-specification Ossila Source Measure Unit at its core, the Ossila Four-Point Probe is a low-cost system that allows a wide measurement range. The probe head uses spring-loaded contacts instead of sharp needles, preventing damage to delicate samples, such as polymer films with thicknesses on the order of nanometres. The price includes a four-point probe, in-built source measure unit, easy-to-use PC software, and an ITO-coated glass substrate. With free tracked worldwide shipping as standard, more laboratories across the globe can now measure sheet resistance to empower their materials characterisation and thin-film development programs.
The Ossila Four-Point Probe is backed by the Ossila Guarantee and is covered by our FREE 2-year warranty.
What is a Four-Point Probe?
The four-point probe is the most commonly-used piece of equipment for measuring the sheet resistance of a material. Sheet resistance is the resistivity of a material divided by its thickness, and represents the lateral resistance through a thin square of conducting/semiconducting material. This measurement uses four probes arrayed in a line, with equal spacing between each probe. A current is passed between the outer two probes, causing a reduction in voltage between the inner two probes. By measuring this change in voltage, the sheet resistance can then be calculated.
Four-Point Probe Measurement Specifications
*Accuracy is the maximum deviation from the true value.
** Precision is the maximum deviation between identical measurements (useful for comparative measurements).
Physical Device Specifications
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原创作者：深圳市泽任科技有限公司
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