Selection mistakes lead to serious troubles! We will measure the contact resistance and select the optimal high-current probe for your company free of charge.
The selection of probes for charge and discharge testing of EV batteries and lithium-ion batteries must be done carefully. This is due to the risk of significant issues caused by heat generation in harsh environments where current is applied for longer periods than usual. There are three main important points to consider when choosing the appropriate probe: 1. Compatibility of operating current and specifications If there is not enough margin in the probe's allowable operating current, abnormal heat generation may occur during current flow. 2. Heat resistance of the probe Since heat generation due to prolonged current flow is unavoidable, selecting heat-resistant specifications may help reduce the deterioration (sagging) of the spring. 3. Contact resistance between the probe and the workpiece High contact resistance can cause heat generation at the contact point, potentially leading to deformation or welding of the probe tip. However, there are many customers who say, "I don't know how to specifically judge and choose." Therefore, Sankei Engineering offers a [Free Probe Selection Service]. We will take your workpiece and measure the contact resistance using our equipment, and based on that data, we will propose the most suitable probe for your operating environment. Inquiries during the information-gathering stage are also welcome. Please feel free to contact us through the inquiry form.
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Flow of Use 1. Inquiry: We will hear about your current issues and usage environment (current values, temperature, etc.). Web meetings or direct visits for discussions are also possible. 2. Work Submission: Please send us your workpieces or the contact probes related to your current issues. 3. Experiment: We will conduct measurements and experiments, such as contact resistance, using our equipment. 4. Proposal: We will propose the optimal products along with actual measurement data (report). 5. Sample Provision: If desired, we will prepare sample products for you to try on-site. *If we cannot accommodate with existing catalog items, we also accept design and manufacturing of custom products.
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Download All Catalogs![[Four-terminal measurement compatible] High current compatible coaxial contact probe](https://image.mono.ipros.com/public/catalog/image_generated/01/fde/292362/292362_IPROS3428390403716296094_1.jpg?w=120&h=170)
Company information
Contact probes are indispensable for the manufacturing of all precision instruments. Since entering this field 50 years ago, Sankei Engineering has actively worked on "technologies and products that cannot be imitated by other companies," accumulating unique know-how. Particularly in specialized areas that require high precision, such as measurements under high current, high voltage, and extreme temperatures, it is difficult to meet the demands without our outer spring type (integrated) contact probes, establishing a significant competitive advantage in this market.
