Gage 3000 Series



Gage 3000 Series Amplifier / Signal Conditioning System:

The G3000 is a portable rack housing up to 6 different modules Each one of those modules can be used with any combination of the others. This feature enables the user to run complicated experiments with small system volume and relatively low cost.

The unit operates from an external power supply of ±15V, for increased safety and excellent noise immunity. There are 6 module types, for various types of applications: strain measurments, Pressure, Photo diodes, Piezo sensors, Temperature, Displacement, Dynamic measurements at high bandwidth, EEG and ECG.

The G-3001 and G-3006 modules contains a very low noise Instrumentation Amplifier, a Signal Conditioner and a variable or fixed symmetrical excitation.

It can be used as a Strain Gage Amplifier for Load Cells, RTD or Load and Force measurement with Strain gage bridges or other bridge based piezo-resistive transducers (as pressure sensors). It can also be interfaces to most Temperature transducers, Piezo Sensors, Photo sensitive devices and most sensors having a voltage output.

The G-3020 is similar in functionality to the G-3001, except that it was designed for high speed sensors with a bandwidth of up to 10 MHz. It can be used with High Frequency Strain Gage sensor, to monitior shocks, vibrations, explosions, material testing, Ultrasound and fast transients. This module contains a high speed instrumentation amplifier, a filter and a variable excitation.

The G-3080 is a LVDT sensor signal conditioner (LVDT = Linear Variable Differential Transformer or Linear Variable Displacement Transducer...). The module consists of a LVDT excitation and a LVDT demodulator circuitry which together form a high speed displacement measurement system. With an appropriate sensor it can measure displacement as small as 1 micron and at frequencies up to 20KHz.

The G-3030 E/C are medical amplifiers used for neurological application, brain mapping, Heart rate ECG and other medical applications. Both units consist of a high sensitivity differential amplifier with high gain and proprietary filters designed for this application.

  • Gage 3000 Series Amplifier / Signal Conditioning System:
  • G-3001 Differential Amplifier & Excitation Module
  • G-3006 Enhanced Differential Amplifier & Excitation Module
  • G-3020 10MHz Instrumentation Amplifier & Excitation
  • G-3080 LVDT Demodulator
  • G-3030C ECG Amplifier
  • G-3030E EEG Amplifier
  1. Gage 3000 Series Amplifier / Signal Conditioning System:
  2. G-3001 Differential Amplifier & Excitation Module
  3. G-3006 Enhanced Differential Amplifier & Excitation Module
  4. G-3020 10MHz Instrumentation Amplifier & Excitation
  5. G-3080 LVDT Demodulator
  6. G-3030C ECG Amplifier
  7. G-3030E EEG Amplifier

G3001 Differential Amplifier & Excitation Module

The G3001 is a simple signal conditioner/amplifier with DC Excitation used for interfacing all bridge type sensors including: Straine Gage, Pressure sensors, Thermocouples, Accelerometers, Photo Diodes, Piezo sensors etc.

The module contains a low-noise instrumentation amplifier, Gain and DC Offset sections and a Low Pass Filter. The bridge excitation is symmetrical and is capable of driving most bridge type transducers.

The module has internal bridge completion resistors and a shield driver for protecting the inputs from common mode noises. The unit features a high stability and low noise Excitation unit for driving the sensors.

This module can be used as a Strain Gage Amplifier for Load Cells, RTD or Load and Force measurement with Strain gage bridges or other bridge based piezo-resistive transducers (as pressure sensors). It can also be interfaces to most Temperature transducers, Piezo Sensors, Photo sensitive devices and most sensors having a voltage output. It can also be used as a Strain Gage monitoring system with many channels (combining few mainframes together). Due to it's low noise and high gain, it is an ideal solution for a strain gage force balance with op to 6 channels in one mainframe.

The amplifier can be operated by batteries and it's output signal can be transferred to the data acquisition system via the AFL-500 Analog Fiber optic Link for complete isolation of the system:AFL-500 Fiber Optic Link

  1. Specifications:

Parameter

Value

Gain

100 - 2000 Var. Gain

Gain Non-Linearity

±0.002%

Gain Temp. Coef.

5ppm/°C

Input Offset Drift

1µV/°C

Output Offset Drift

25µV/°C

Input Offset Vs. Supply

85dB

Dif. Capacitance

5pF

CMMR (DC-100Hz)

110dB

Bandwidth (Gain100-1000)

20KHz min (-3dB)

Setting time to 0.01%

80µSec

Input Noise Voltage(@1KHz)

5nV/

Output Noise

100nV/±12V to ±18V

Excitation Current (max)

80mA

Excitation Drift

15ppm/°C ±10µV/°C

Excitation Noise (DC-100KHz)

0.6mV @ 350 Ohm Load

Excitation Noise (DC-1KHz)

0.2mV @ 350 Ohm Load

Operating Temperature

0-70°C

Bridge Resistance Range

50 Ohm - 20,000 Ohm

Low Pass Filter

One fixed Frequency (internally changed)

  1. Block Diagram:



G3006 Enhanced Differential Amplifier & Excitation Module

The G3006 is an enhanced signal conditioner/amplifier with DC Excitation user for interfacing all bridge type sensors including: Straine Gage, Pressure sensors, Thermocouples, Accelerometers, Photo Diodes, Piezo etc.

The module has internal bridge completion resistors and a shild driver for protecting the inputs from common mode noises. The unit features a high stability and low noise Excitation unit for driving the sensors. Five fixed gain values + variable gain control are used for gain setup. The output signal is filtered by one of 5 Low Pass Filters(4'th order).

This module can be used as a Strain Gage Amplifier for Load Cells, RTD or Load and Force measurement with Strain gage bridges or other bridge based piezo-resistive transducers (as pressure sensors). It can also be interfaces to most Temperature transducers, Piezo Sensors, Photo sensitive devices and most sensors having a voltage output. It can also be used as a Strain Gage monitoring system with many channels (combining few mainframes together). Due to it's low noise and high gain, it is an ideal solution for a strain gage force balance with op to 6 channels in one mainframe.

The amplifier can be operated by batteries and it's output signal can be transferred to the data acquisition system via the AFL-500 Analog Fiber optic Link for complete isolation of the system:AFL-500 Fiber Optic Link

  1. Block Diagram:


  1. Specifications:

Parameter

Value

All Specifications of the G-3006 are similar to G-3001 except: Gain: 100, 200, 500, 1000, 2000 Fixed 100-2000 Variable gain. Low Pass Filters - 5 Fixed Frequencies: 1Hz, 10Hz, 100Hz, 1KHz, 10KHz

Gain

100 - 2000 Var. Gain

Gain Non-Linearity

±0.002%

Gain Temp. Coef.

5ppm/°C

Input Offset Drift

1µV/°C

Output Offset Drift

25µV/°C

Input Offset Vs. Supply

85dB

Dif. Capacitance

5pF

CMMR (DC-100Hz)

110dB

Bandwidth (Gain100-1000)

20KHz min (-3dB)

Setting time to 0.01%

80µSec

Input Noise Voltage(@1KHz)

5nV/

Output Noise

100nV/ ±12V to ±18V

Excitation Current (max)

80mA

Excitation Drift

15ppm/°C ±10µV/°C

Excitation Noise (DC-100KHz)

0.6mV @ 350 Ohm Load

Excitation Noise (DC-1KHz)

0.2mV @ 350 Ohm Load

Operating Temperature

0-70°C

Bridge Resistance Range

50 Ohm - 20,000 Ohm

Low Pass Filter

5 Fixed Frequencies



G3020 - 10MHz Instrumentation Amplifier & Excitation:

The G-3020 is a high speed signal conditioner for measuring high speed reactions/explosions/shocks/transients. It was designed for use of high speed sensors with a bandwidth of up to 10 MHz like High Frequency Strain Gage sensors.

This module contains a high speed instrumentation amplifier, a filter and a variable excitation.

The G-3020 is a unique Differental Amplifier with excitation, designed for interfacing high frequency response sensors (up to 10MHz),as: Straine Gages, Piezo elements, Piezo resistive sensors, Photo Diodes etc.

This module is used where a very high analog bandwidth is needed, mainly in measurement of explosions, shock waves, material testing, Ultrasound, vibrations, explosions, fast transients etc.

  1. Block Diagram:


  1. Specifications:

Parameter

Value

Gain

10 or 100

Bandwidth

1 or 10MHz (Selectable)

Common Mode Rejection

90dB @ 1MHz

Non Linearity

±0.04%

Output Voltage Swing

±12V

Setting time (0.1%, 4Vstep)

80 nanosecond

Input Resistance

200 K

Input Offset Voltage

3mV

Supply Voltage Range

±12V to ±18V

Excitation Current (max.)

80mA

Excitation Drift

15ppm/°C
±10µV/°C

Excitation Noise (DC-100KHz)

0.6mV@350 Ohm Load

Excitation Noise (DC-1KHz)

0.2mV@350 Ohm Load

Bridge Resistance Range

10Ohm - 10KOhm

Operating Temperature

0-70°C



G-3080 LVDT Demodulator:

The G-3080 module is used to demodulator the signal from a 5 or 6 wire LVDT (LVDT = "Linear Variable Differential Transformer" or "Linear Variable Displacement Transducer"...) sensors, for accurate displacement/position measurement, at frequencies up to 20KHz. The board is using a special ratiometric measurement circuit, which is insensitive to noise and Temp. drift problems, common to other measurement techniques.

The module consists of a LVDT excitation and a LVDT demodulator circuitry which together form a high speed displacement measurement system. With an appropriate sensor it can measure displacement as small as 1 micron and at frequencies up to 20 KHz.

The module is assembled from high linearity and low drift components, and operates with most common LVDT sensors.

The amplifier can be operated by batteries and it's output signal can be transferred to the data acquisition system via the AFL-500 Analog Fiber optic Link for complete isolation of the system:AFL-500 Fiber Optic Link

  1. Block Diagram:


  1. Specifications:

Parameter

Value

Bandwidth

upto 20KHz

Linearity

Better than 0.05% of FS

Gain Drift

50ppm/°C of FS max

Offset Drift

50ppm/°C of FS max

Output

Unipolar or Bipolar

LVDT sensor type

Any 5 or 6 wire sensor

Supply Voltage

±15V

Output Voltage

±11V

Primary to Secondary phase shift:

Transducer null voltage

Insensitive

Transducer cable length

upto 30m

Output cable length

upto 100m

Excitation:

Excitation range

3-20V RMS

Excitation T.C.

600ppm/°C

Excitation Voltage

Rejection

100ppm/dB

Output Current

30mA RMS

Short Circuit Current

60mA

Frequency Range

20-20000Hz (with component change)

Excitation Frequency T.C.

200ppm/°C

THD

-50dB

Power Supply

Voltage Range

±7V to ±18V

Current (@ no load)

18mA

Temperature range

0-70°C



G-3030C ECG Amplifier:

The G-3030C is basically designed to monitor the heart's electrical activity (ECG) and Heart Rate. However, it can also be used to monitor AC sensors (vibration, noise, microphones etc.) The signal input is coming from standard (2mm) electrodes, which might be shielded for higher noise immunity. This signal is amplified and filtered using a 4'th order filter or a combinatin of a filter and a R-Wave peak detector circuit.

The amplifier can be operated by batteries and it's output signal can be transferred to the data acquisition system via the AFL-500 Analog Fiber optic Link for complete isolation of the patient:AFL-500 Fiber Optic Link

  1. Block Diagram:


  1. Specifications:

Parameter

Value

Input Voltage Range

Gain

Vin (mV)

200

±50

500

±20

1000

±10

2000

±5

5000

±2

10000

±1

Gain:

200, 500, 1000, 2000, 5000, 10000

Output Selection:

Normal, R-Wave indicator

Low Pass Filter:

35Hz, 100Hz

High Pass Filter:

0.05, 1.0Hz

Notch Filter:

50dB rejection @ 50/60 Hz

Noise Voltage (0.05-35Hz):

0.08µV (rms)

Zin:

2M Ohm (Differential), 1000M Ohm (Common Mode)

CMRR:

110 dB min (50/60 Hz)

Common Mode

Input Voltage Range:

±15V



G-3030E EEG Amplifier:

The G-3030E module was especially designed to monitor the neuronal activity of the brain. The module conditions the signal ciming from a standard (2mm) electrodes and protect the sensetive input from noises using an advanced shield driver. The output signal is filtered using a standard smoothing Low-Pass-Filter, or a combination of a L.P.Filter, a Band-Pass+Peak (8-12 Hz) to monitor maximal Alpha activity. This Neuro EEG amplifier can be used for applications as Brain mapping, Multi channel EEG system or as a general purpose medical amplifier.

The amplifier can be operated by batteries and it's output signal can be transferred to the data acquisition system via the AFL-500 Analog Fiber optic Link for complete isolation of the patient:AFL-500 Fiber Optic Link

  1. Block Diagram:


  1. Specifications:

Parameter

Value

Input Voltage Range

Gain

Vin (mV)

500

±20

2000

±5

5000

±2

10000

±1

20000

±0.5

50000

±0.2

Gain:

500, 2000, 5000, 10000, 20000, 50000

Output Selection:

Normal, Alfha Wave indicator

Low Pass Filter:

35Hz, 100Hz

High Pass Filter:

0.1, 1.0Hz

Notch Interference Filter:

50dB rejection @ 50/60 Hz

Noise Voltage (0.05-35Hz):

0.08µV (rms)

Zin:

2M Ohm (Differential), 1000M Ohm (Common Mode)

CMRR:

110 dB min (50/60 Hz)

Common Mode

Input Voltage Range:

±15V


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