G3000 Series Amplifier / Signal Conditioning System

The G - 3001 is a simple Signal Conditioner / Amplifier with DC Excitation used for interfacing all bridge type sensors including: Strain 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 its Low Noise and High Gain, it is an ideal solution for a Strain Gage Force Balance with upto 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

Parameter

Value

Gain:

100 - 2000 Var. Gain

Gain Non-Linearity:

±0.002%

Gain Temp. Coeff:

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 (Gain 100 - 1000):

20kHz Min. (-3dB)

Setting time to 0.01%:

80µSec

Input Noise Voltage (@1kHz):

5nV/√Hz

Output Noise:

100nV/√Hz ± 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)

The G - 3006 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 upto 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

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. Coeff:

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 (Gain 100 - 1000):

20kHz Min. (-3dB)

Setting Time to 0.01%:

80µSec

Input Noise Voltage (@1kHz):

5nV/√Hz

Output Noise:

100nV/√Hz ±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

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 upto 10MHz 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 Differential Amplifier with Excitation, designed for interfacing High Frequency Response Sensors (upto 10MHz), as: Strain 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.

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:

200kΩ

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

The G - 3080 Module is used to Demodulate 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 upto 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 upto 20kHz.

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

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 - 20,000Hz (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

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 combination of a Filter and a R-Wave peak Detector Circuit.

The Amplifier can be operated by Batteries and its 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

Parameter

Value

Input Voltage Range

Gain:

V_in (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)

Z_in:

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

CMRR:

110dB min (50/60 Hz)

Common Mode

Input Voltage Range:

±15V

The G - 3030E Module was Especially designed to Monitor the Neuronal Activity of the Brain. The Module Conditions the Signal coming from a Standard (2mm) Electrodes and Protect the Sensitive 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 - 12Hz) 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 its 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

Parameter

Value

Input Voltage Range

Gain:

V_in (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, Alpha 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)

Z_in:

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

CMRR:

110 dB min (50/60 Hz)

Common Mode

Input Voltage Range:

±15V