| 摘要 |
The invention relates to detecting the condition of a lamp (1) for heating blank bodies made of thermoplastic material, intended for the manufacture of containers by blow moulding or stretch-blow moulding, this infrared electromagnetic radiation lamp having an envelope (2) in particular made of glass or quartz enclosing a filament (3); the lamp is provided with an electrically conductive element (6) mechanically integral with the envelope; the conductive element is made electrically live and an electrical variable (for example the resistance thereof) is continuously detected (in 8) between the terminals of said conductive element when the lamp is in operation; and data representative of the condition of the conductive element, and therefore of the envelope, is supplied.
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