| 摘要 |
<p>Faults in vitreous enamel linings on steel walled vessels such as chemical reactors or piping containing an electrolyte are indicated by an electrical system including a glass or platinum electrode in contact with the electrolyte and connected to the vessel wall through a voltmeter. An auxiliary platinum electrode also contacts the electrolyte and is connected to the voltmeter in parallel with the vessel wall. The auxiliary electrode reduces the effect of background or interference voltage and thereby improves the sensitivity of the system.</p> |
