| 摘要 |
<p>The invention provides a method of measuring moulding conditions in a rotational moulding process, and to a telemetry device (10) for measuring and reporting ambient conditions in a high temperature environment, such as in a rotational mould. The method includes mounting the telemetry device (10) on a rotational moulding apparatus such that the device (10) moves with an associated mould into a moulding oven. The device (10) has a casing (30) which houses electronic equipment (34, 36, 46) providing a transmission means for transmitting wireless signals indicative of measured ambient conditions outside of the casing (30). The device (10) further includes a cooling arrangement for cooling the interior of the casing (30) by channelling pressurised cooling fluid through the casing (30). Typically, the device (10) includes a cooler (70) for cooling air before entry of the air into the casing (30).</p> |
