How to choose high-current contact probes that can withstand long periods of continuous power supply?
The selection of high-current probes used for battery charge and discharge testing must be done carefully. If the selection is incorrect, it can lead to abnormal heating or sparking, potentially causing workpiece welding or equipment failure. There are mainly two key points to consider when choosing the appropriate probe: 1. Specification compatibility: In charge and discharge cycle tests that involve long periods of continuous current flow, it is important to select a probe that has sufficient current capacity relative to the actual usage current value. 2. Contact resistance between the probe and the workpiece: Even slight contact resistance can cause contact heating during current flow, leading to workpiece welding, so it is crucial to choose a probe that can maintain stable contact with the workpiece. However, many customers struggle with "what specific criteria to use for judgment." Therefore, Sankei Engineering offers a **free probe selection service**. We will take your measurement workpiece and measure the contact resistance using our equipment. Based on the data obtained, we will select and propose the most suitable probe for your usage environment. Inquiries during the comparison and information-gathering stage are also welcome. Please feel free to consult us through the contact form on our website.
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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: You will send us your workpieces or contact probes related to the 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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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.
