A&D AS2503, Instruction Manual

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１－４
1.5 Features of Dynamic Strain Amplifiers
Bridge power
voltage supply
DC bridge
(DC strain amplifier
）
Recommended sensors
1. Strain gauges
2. Sensors for load, displacement, acceleration, and torque
(Strain gauge-type transducers)
Features
DC strain amplifiers have higher non-linearity and sensitivity than those of
AC strain amplifiers. Generally, the DC strain amplifiers are used with
strain gauge transducers, but they can also be used as DC amplifiers.
Amplifier Type
ＤＣ
Strain Amplifier
ＤＣ
Strain Amplifier
Model AS2503 (Wide-range type) AS2603 (Wide-range type)
Voltage sensitivity +/- 10 V output in
±
1,000×10
－
6
+/- 10 V output in
±
2,000×10
－
6
Non-linearity
±
0.01% /FS
±
0.05% /FS
Frequency response DC to 500kHz DC to 100kHz
Noise 80×10
－
6
strain p-p 50×10
－
6
strain p-p
Maximum gain 10,000X 5,000X
Bridge voltage 2, 3, 5, 9, and 10 VDC 2, 3, 5, 9, and 10 VDC
Isolation between input block
and power supply
NA +++
Measurement with strain
gauge transducers
+++ +++
Measurement of strain
such as shock
+++ ++
Measurement with strain gauge + +
If the distance between
measuring point and instrument
+++
Wire-length adjustment: patent protected
+++
Wire-length adjustment: patent protected
Using as DC amplifier Possible Possible
+++: Best suited ++: Suited +: Usable but not suited NA: Not suited or cannot be used
Table 1-4 Functional Difference between AS2503 and AS2603
Table 1-3 Recommended Sensors and Features