HP Smoke Alarm 81531A Performance Test, Note, Accuracy and Linearity T est

Performance Test D

The performance test given in this section includes the Accuracy Test, the Linearity Test, and the Noise Test. Perform each step in the order given, using the corresponding test equipment.

Note	Make sure that all optical connections of the test setups given
	in the procedure are dry and clean. DO NOT USE INDEX
	MATCHING OIL.
	The optical cables from the laser source to and from the HP
	8156A Attenuator to the power meter must be ￿xed on the
	table to ensure minimum cable movement during the tests.

Accuracy and Linearity T est

Speci￿cations HP 81531A

Uncertainty : 62.8%y (1000-1650nm)

Linearity : 60.015dB61pW

yincludes aging.

Test Setup

1.Make sure that cable connector, detectors and adapters are clean.

2.Connect the equipment as shown in Figure D-1. Ensure that the cables to and from the attenuator are ￿xed on the table and that both the optical head and the DUT are close together so that minimum cable movement is required when connecting the cable to the head or to the DUT.

Performance Tests D-3