Strain Gauge Sensor Amplifier or Single Supply Instrumentation Amplifier
This is a new project, a single supply instrumentation amplifier with onboard bridge configuration, and a 2.5V precision reference voltage chip. The project can be configured for applications such as thermocouple amplifier, bridge amplifier, ECG amplifier, pressure sensors, medical instrumentation, portable instrumentation, RTD sensor amplifier. The project is based on INA333 micropower, zero drift, rail to rail out instrumentation amplifier chip. REF5025AID chip provides a precise 2.5V reference voltage. The board can be configured as an instrumentation amplifier or as a strain gauge amplifier with few easy changes.
Features
- Power Supply 5V DC
- Output 230mV to 4.7V DC
- Strain Gauge Nominal Resistance 120 Ohms
- Stain Gauge Resistance Variation 115 Ohms to 125 Ohms
- Sensor Gauge Factor 5%
- Bridge Excitation Voltage and Reference Voltage 2.5V DC
- PCB Dimensions 26.99 x 19.21 mm
Strain Gauge Sensor
- Digi-Key Part Number: MMF002504-ND
- Manufacturer: Micro-Measurements (Division of Vishay Precision Group)
- Manufacturer Part Number: MMF002504
- Description: EA-06-250BG-120/LE STRAIN GAGES
- Detailed Description: Linear Strain Gauge ±5% 0.250″ (6.35mm) 0.125″ (3.18mm)
- Pattern Type: Linear
- Strain Range: ±5%
- Resistance: 120 Ohms
- Resistance Tolerance: ±0.15%
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This is a new project, a single supply instrumentation amplifier with onboard bridge configuration, and a 2.5V precision reference voltage chip. The project can be configured for applications such as thermocouple amplifier, bridge amplifier, ECG amplifier, pressure sensors, medical instrumentation, portable instrumentation, RTD sensor amplifier. The project is based on INA333 micropower, zero drift, rail to rail out instrumentation amplifier chip. REF5025AID chip provides a precise 2.5V reference voltage. The board can be configured as an instrumentation amplifier or as a strain gauge amplifier with few easy changes.
Features
- Power Supply 5V DC
- Output 230mV to 4.7V DC
- Strain Gauge Nominal Resistance 120 Ohms
- Stain Gauge Resistance Variation 115 Ohms to 125 Ohms
- Sensor Gauge Factor 5%
- Bridge Excitation Voltage and Reference Voltage 2.5V DC
- PCB Dimensions 26.99 x 19.21 mm
Strain Gauge Sensor
- Digi-Key Part Number: MMF002504-ND
- Manufacturer: Micro-Measurements (Division of Vishay Precision Group)
- Manufacturer Part Number: MMF002504
- Description: EA-06-250BG-120/LE STRAIN GAGES
- Detailed Description: Linear Strain Gauge ±5% 0.250″ (6.35mm) 0.125″ (3.18mm)
- Pattern Type: Linear
- Strain Range: ±5%
- Resistance: 120 Ohms
- Resistance Tolerance: ±0.15%
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