| 摘要 |
A controller 316 and method for establishing safe operation of an atomic emission spectrometer AES (spark, optical emission spectrometer). At least one test parameter is measured, indicative of the arrangement of a sample on a holder 102, and compared to target values. The test parameter may be measured at time intervals, may depend on a current between a first and second terminal at the holder, may be impedance, a displacement of the holder 102, or a gas pressure in a chamber housing an electrode 112. The electrode 112 may be disabled via a switch 322 if the measured parameter is not within a target range, and therefore the sample not correctly arranged or secure. The first terminal may be at a sample receiver 104 of the holder, and the second terminal at a clamping element 106. Prior to measurement, a current may be applied between the first and second terminal. |
