model 2771C series in-line remote charge converters for an experimental modal analysis application. How can I determine charge converter phase response at 1 Hz?
Answer
For the benefit of readers who may be unfamiliar with in-line remote charge converters, such as the Endevco® model 2771C
model 2771C and 2777A have a DCV (direct current voltage) bias established at or near the mid point of the compliance supply voltage as shown in Figure 1. The DCV bias is common to most output stages of single ended devices allowing a dynamic AC signal to swing above and below the DCV bias operating
model 2771C. This device converts the interference susceptible charge signal into a more robust voltage signal, allowing you to run longer cables if needed.
Current coupled noise is the result of ground loops. Ground loops are a result of multiple grounding points in the measurement system. Despite
B and 2771C charge amplifiers and is intended for a GO-NO-GO testing situation only:
Parts List:
C1 1000 pF capacitor
C2 0.1 mfd capacitor 50V
R1 100k resistor 5%
D1 IN5314 Diode
Test Equipment:
Oscilloscope
Volt Ohm meter
Signal Generator
+24Vdc Power supply
Figure 1
To conduct the test:
1. H