Table Of Contents - Stanford Research Systems SR844 User Manual

Contents
General Information
Safety and Preparation For Use
Contents
Specifications
Chapter 1 Getting Started
Quick Start
The Basic Lock-In
X, Y, R,
Outputs, Offsets and Expands
Storing and Recalling Setups
Aux Outputs and Inputs
Chapter 2 SR844 Basics
What is a Lock-In Amplifier?
The Functional SR844
RF Signal Input Path
Reference Channel
I.F. Section
Inside the DSP
Analog Outputs and Scaling
What is Dynamic Reserve ?
Sources of Error
Using the SR844 as a Double Lock-In
Noise Measurements
Intrinsic (Random) Noise Sources
External Noise Sources
Chapter 3 Operation
Overview
Signal Input
Time Constants
Sensitivity
CH1 Display and Output
CH2 Display and Output
Reference Section
Save and Recall
Interface
Scan and Rel
Auto Functions
Shift Functions
θ and dBm
SR844 RF Lock-In Amplifier
iii
i
iii
v
1-3
1-5
1-9
1-12
1-18
1-19
2-3
2-8
2-9
2-10
2-11
2-12
2-15
2-17
2-19
2-22
2-23
2-24
2-25
3-3
3-8
3-11
3-13
3-15
3-20
3-26
3-30
3-31
3-33
3-40
3-41