3 Channel Modular Spinning Signal Conditioning Amplifier


Kategori : Signal Conditioning Electronics
Marka : Michigan Scientific Corporation
Sipariş Kodu : R0X11-932
Ürün Adı : 3 Channel Modular Spinning Signal Conditioning Amplifier

3 Channel Modular Spinning Signal Conditioning Amplifier


Michigan Scientific Corporation : AMP-SG3-U2 Series Modular Spinning Strain Gage Amplifier

 

 

Description :
 

The Modular Spinning Strain Gage Amplifier is designed to mount on the rotor (spinning side) of all Michigan Scientific SR series slip rings. Superior data accuracy is achieved by locating the signal amplifier on the rotating side of the slip ring. This configuration greatly improves signal quality because the amplifier is located closer to the sensor which reduces errors due to long lead wires, connector resistance variations, and electro-magnetic interference. 
These Modular Spinning Strain Gage Amplifiers incorporate a precision low drift bridge excitation supply, a stable differential amplifier, and a remotely activated shunt calibration resistor for system span verification. 
Each amplifier module provides strain gage bridge excitation and amplification for three channel. For more than three channels, the amplifiers may be stacked or arrayed around an adapter plate. Refer to the literature in the Technical Notes section for a wiring schematic of an individual amplifier and recommended wiring techniques when using multiple amplifiers.

-Three channel modular amplifier
-Highly accurate bridge excitations 
-Provides high level voltage signal outputs
-Externally adjustable shunt resistances
-Externally adjustable gains
-Precision low noise differential amplifiers
-Remote bridge excitation On/Off capability
-Remote shunt calibration capability
 
Specifications :
 
 

PARAMETER

SPECIFICATION

BRIDGE EXCITATION

 

Type

DC Constant Voltage (Bipolar excitation)

Magnitude

AMP-SG3-U2-5 ±2.5 V (5 volts total)
AMP-SG3-U2-10 ±5.0 V (10 volts total)

Accuracy

0.40%

Temperature Coefficient

0.0005 %/°C Max (0.00028 %/°F)

Current Limit

AMP-SG3-U2-5 42 mA
AMP-SG3-U2-10 84 mA

REMOTE CALIBRATION

Positive & negative shunt Calibration

Shunt Resistance

 
internal values
100kΩ and 1MΩ
external values
100kΩ Through 1MΩ

Shunt accuracy

 
@ 100 kohm
0.1%
@ 1Megohm
0.1%

GAIN

 

Range

 
with external jumper
100 or 2000 V/V
w/ external resistor
100 to 2000 V/V

Accuracy

 
@ 25°C, Gain =100
±0.05 % typ (±0.50 %max)
@ 25°C, Gain =1000
±0.50 %typ (±1.0 %max)

Temperature Coefficient

0.0025 %/°C (0.0014 %/°F)

OUTPUT

 

Range

±10V Max

Capacitive Load

1000 pF Max

VOLTAGE OFFSET

Referred to input of amplifier

Initial @ 25°C

±10 μV typ (±50 μV max)

Temperature Stability

±0.1 μV / °C typ (±0.25 μV / °C max)

Time Stability

±0.1 µV / month

DC CMRR

160 dB

NOISE

 

rti 0.01 - 10 Hz

0.7µV p-p

DYNAMIC RESPONSE

 

Frequency Response  -3dB

 
@ Gain=1000
20 kHz
@ Gain=100
20 kHz

Slew rate

4 V/ µs

Settling Time to 0.01% @ Gain=100

9 µs

POWER REQUIREMENTS

  

Voltage

±15 VDC

Current

±45 mA plus Bridge Load
(+30 mA additional during shunt calibration)  

ENVIRONMENT

 

Specification

-40 to +85°C (-40 to +185°F)

Operation

-40 to +125°C (-40 to +257°F)

MECHANICAL

AMP-SG3-U2

Weight

68.5 G (2.42 Oz)

 

3 Channel Modular Spinning Signal Conditioning Amplifier