The method of measuring voltage by solar testing tungsten-rhenium probe is mainly through contact or non-contact measurement. The following is the specific measurement process:
1. Contact measurement:
(1) Select the appropriate probe head and probe rod to ensure that the probe head can contact the wires or metal electrodes on the solar panel.
(2) Contact the probe head with the wire or metal electrode on the solar panel. At this time, the probe head and the wire or metal electrode form a current path.
(3) Measure the open circuit voltage of the solar panel by connecting a test instrument (such as a multimeter). The multimeter will display the measurement results.
2. Non-contact measurement:
(1) Select the appropriate probe head and probe rod to ensure that the probe head can maintain a certain distance from the wires or metal electrodes on the solar panel.
(2) Using the principle of electromagnetic induction, the probe head will sense the electromagnetic field on the solar panel, thereby generating an induced current.
(3) Measure the open circuit voltage of the solar panel by connecting a test instrument (such as a multimeter). The multimeter will display the measurement results.
Whether it is contact or non-contact measurement, the role of the probe is to introduce the voltage signal of the solar panel into the test instrument to achieve accurate measurement of the voltage. It should be noted that when measuring voltage, ensure that the probe head is in good contact with the wires or metal electrodes on the solar panel to avoid errors caused by poor contact.
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