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Force Balance Accelerometers
The force balance accelerometer has a classical critically-damped, second-order frequency response. There is no peaking in the response but simply a smooth roll-off above the natural frequency. This property along with the excellent characteristics of the "HP" torquer design makes Columbia accelerometers the best choice for demanding applications where precise DC and near-DC measurements are needed in demanding shock and wide band vibration environments. Columbia force balance accelerometers are available to cover virtually all applications. Low noise, high output units can be used for seismic structure motion studies while miniature, high range versions are optimum for measuring more violent high G environments encountered in many industrial, aircraft and missile applications.
- Force Balance Accelerometers for Measurement while drilling
- Measurement of DC and low frequency acceleration
- Force Balance Accelerometers in seismic and low level low frequency studies
- Demanding missile and airborne application
- Miniature airborne sensors
- Operational to 125°C, high temp model up to 200°C
- Fluid rotor concept of sensing angular acceleration.
- Survive severe mechanical environments without degradation of unit performance.
Linear Accelerometers
Columbia Research Labs line of Force Balance Linear Accelerometers offers low cost, high performance, general purpose single axis accelerometers that are ideal for DC and low frequency measurements, with both voltage and current signal ourputs available. Also offered are Columbia's Solid State Sensors and our specialized Airborne Sensors that generate outputs specifically designed to operate from +24 to +32VDC aircraft power, that is excellent for airborne telemetry applications. And our Low Noise Sensors are designed for use in seismic and low level, low frequency motion studies.
| Model | Excitation | Ranges Available | Details | Overall Accuracy | Output | Temperature Range | VIB Limit g | Damping | Weight OZ. | Electrical Connection |
|---|---|---|---|---|---|---|---|---|---|---|
| SA-100MR | ±12 To ±15VDC | ±1 Thru ±50g | Adjustable Range | ±0.15% | ±7.5V | -50°C To +85°C | 5 -10 g | Electrical | 4 | Solder Pins |
| SA-102MFTB | ±24 to ±32VDC, <30mA | ±IG to ±50G | High Reliability | ±1% | 0.2 to 4.8VDC into 100K Load | -50 to +90°C | 10 | Electrical | 2 | Solder Pins |
| SA-107AI | ±15 to ±1VDC, <50mA Max. | ±1G to ±10G | Low Cost and High Performance | ±1% | 4-20mA | -40 to +85°C | 5 | Electrical | 5 | Solder Pins |
| SA-107AIC | ±15 to ±1VDC, <50mA Max. | ±1G to ±10G | Low Cost and High Performance | ±1% | 4-20mA | -40 to +85°C | 5 | Electrical | 5 | Solder Pins |
| SA-107B | ±15VDC | ±0.25 Thru ±100g | Low Cost Gen. Purpose | ±0.2% | ±7.5V | -50°C To +85°C | 5g | Electrical | 4 | Solder Pins |
| SA-107BC | ±15VDC | ±0.25 Thru ±100g | Low Cost w/Connector | ±0.2% | ±7.5V | -50°C To +85°C | 5g | Electrical | 4 | 4-Pin Connector |
| SA-107LN | ±12 to ±15VDC <10mA | ±0.1G to ±2G | High Level Output | ±1% | <5mV | -40 to +80°C | 5 | Electrical | 5 | Solder Pins |
| SA-107LNC | ±12 to ±15VDC <10mA | ±0.1G to ±2G | High Level Output | ±1% | <5mV | -40 to +80°C | 5 | Electrical | 8 | Solder Pins |
| SA-107WPBI | +15VDC | ±1 Thru ±10g | Waterproof-Gen. Purpose | ±0.2% | 4-20mA | -40°C To +85°C | 5g | Electrical | 18 | 4-Pin Connector |
| SA-122R | +24 To +32VDC | ±0.5 Thru ±50g | Strain Gage Replacement | ±0.3% | 0.2 To 4.8V | -55°C To +120°C | 10g | Electrical | 2 | 24 Ft. Cable/3 Leads |
| SA-522PE | +5 to +12VDC | ±1g Thru ±50g | Mini High Shock | ±0.5% | ±1VDC | -55°C to +125° C | 15g | Electrical | 2.5 | 4 Pin Connector |
| SA-522SE | ±5 to ±12VDC | ±1 Thru ±50g | Mini High Shock | ±0.5% | ±1VDC | -55°C to +125°C | 15g | Electrical | 2.5 | 4 #28 AWG Leads |
| SSA-1000-1 | +7.5 To +32VDC | ±2g | Low Cost MicroMachined Sensor | ±0.2% | ±5V (Std.) | 0°C To +70°C | 20g | Electrical | 0.35 | Solder Pins |
| SSA-1000-2 | +7.5 To +32VDC | ±10g | Low Cost MicroMachined Sensor | ±0.2% | ±5V (Std.) | 0°C To +70°C | 20g | Electrical | 0.35 | Solder Pins |
High Performance Linear Accelerometers
The sensors featured in Columbia's High Performance Force Balance Accelerometers offer extremely rugged, high performance accelerometers. These sensors are used in applications ranging from severe vibration and shock environments, demanding missile and airborne applications and downhole well servicing applications. Columbia also offers high temperature and miniature High Performance Sensors.
| Model | Excitation | Ranges Available | Details | Overall Accuracy | Output | Temperature Range | VIB Limit g | Damping | Weight OZ. | Electrical Connection |
|---|---|---|---|---|---|---|---|---|---|---|
| SA-101HP | ±15VDC | ±0.5 Thru ±100g | High Performance | ±0.075% | ±7.5V | -50°C To +90°C | 20g | Electrical | 4 | 6-Pin Connector |
| SA-102BHC | +24 To +32VDC | ±0.5 Thru ±50g | High Performance-Airborne | ±0.1% | ±5V | -55°C To +85°C | 15g | Electrical | 6 | 6-Pin Connector |
| SA-107AIHP | ±15 to ±1VDC, <50mA Max. | ±1G to ±10G | Low Cost and High Performance | ±1% | 4-20mA | -40 to +85°C | 15 | Electrical | 5 | Solder Pins |
| SA-107AIHPC | ±15 to ±1VDC, <50mA Max. | ±1G to ±10G | Low Cost and High Performance | ±1% | 4-20mA | -40 to +85°C | 15 | Electrical | 5 | Solder Pins |
| SA-107BHP | ±15VDC | ±0.1 Thru ±100g | General Purpose | ±0.1% | ±7.5V | -50°C To +85°C | 15g | Electrical | 4 | Solder Pins |
| SA-107BHPC | ±15VDC | ±0.1 Thru ±100g | General Purpose w/Connector | ±0.1% | ±7.5V | -50°C To +85°C | 15g | Electrical | 4 | 4-Pin Connector |
| SA-107WPBIHP | +15VDC | ±0.25 Thru ±10g | Waterproof-High Performance | ±0.1% | 4-20mA | -40°C To +85°C | 5g | Electrical | 18 | 4-Pin Connector |
| SA-120R | ±15VDC | ±1Thru ±10g | Miniature-Airborne | ±0.1% | ±5V | -50°C To +125°C | 25g | Electrical | 1.5 | Solder Pins |
| SA-120RHT | ±15VDC | ±1Thru ±10g | Miniature-High Temperature | ±0.2% | ±5V | -40°C To +200°C | 25g | Electrical | 1.5 | Solder Pins |
| SA-120RNP | ±15VDC | ±1Thru ±10g | Minature-High Performance | ±0.075% | ±5V | -50°C To +125°C | 25g | Electrical | 1.5 | Solder Pins |
| SA-130 | ±15VDC | ±1Thru ±50g | Minature-High Performance | ±0.075% | ±5V | -50°C To +125°C | 25g | Electrical | 1.5 | Solder Pins |
| SA-132RHT | ±15VDC | ±5g to ±15g | Hi-Temp Airborne | ±0.15%F.R. | ±5 V | -40° to +185° C | 25g | Electrical | 1.5 | Solder Pins |
| SA-520RNP | ±15VDC | ±1g to ±50g | High Performance | ±0.05% | ±5 V | -50°C To +125°C | 25g | Electrical | 1.5 | Solder Pins |
| SA-528RHT | +28VDC | ±1g to ±50g | Miniature Aircraft Sensor | ±0.15% | 0.2 to 4.8 VDC | -50°C to +175°C | 18g | Electrical | 3 | Solder Pins |
Biaxial Linear Accelerometers
The line of Biaxial Force Balance Linear Accelerometers available are 2-axis versions of our General Purpose, Low Noise and High Temperature, High Performance Single axis Linear Accelerometers.
| Model | Excitation | Ranges Available | Details | Overall Accuracy | Output | Temperature Range | VIB Limit g | Damping | Weight OZ. | Electrical Connection |
|---|---|---|---|---|---|---|---|---|---|---|
| SA-207B | ±15VDC | ±1Thru ±50g | Low Cost | ±0.2% | ±7.5V | -50°C To +85°C | 5 | Electrical | 7.7 | Solder Pins |
| SA-207BHP | ±15VDC | ±0.5Thru ±50g | General Purpose | ±0.1% | ±7.5V | -50°C To +85°C | 15 | Electrical | 7.7 | Solder Pins |
| SA-207LN | ±15VDC | ±0.1Thru ±2g | General Purpose | ±0.1% | ±7.5V | -40°C To +80°C | 15 | Electrical | 8 | Solder Pins |
| SA 220RHT | ±15VDC | ±1Thru ±10g | Low Cost | ±0.1% | ±5V | -40°C To +200°C | 20 | Electrical | 3.34 | Solder Pins |
| SA 225RHT | ±5VDC | ±1Thru ±5g | Low Cost | ±0.1% | ±3V | -40°C To +190°C | 20 | Electrical | 3.34 | Solder Pins |
Triaxial Linear Accelerometers
The Triaxial Force Balance Linear Accelerometers range from general purpose, low cost sensors, capable of measuring DC and low frequency acceleration simultaneously in three axes, to Miniature Airborne, Highly Reliable Sensors that operate from +24 to +32VDC Aircraft power. Also offered are compact, premium performance, extremely rugged sensors, well suited for demanding missile and airborne applications.
| Model | Excitation | Ranges Available | Details | Overall Accuracy | Output | Temperature Range | VIB Limit g | Damping | Weight OZ. | Electrical Connection |
|---|---|---|---|---|---|---|---|---|---|---|
| SA-302BHC | +24 to +32 VDC 50 mA Max. | +0.5 G To +50 G to +1 G To +35 G | - | - | <5000 Ohms | -55 To +85 Deg C | 15 | 0.7 +0.1 @ 25 Deg C 0.5 To 1.0 Over Temperature | 6 Oz (170 Gm) - 22 Oz (624 Gm) | MS3113H-10C-6P | MS3112E12-10P or Equiv. |
| SA-302MFTA | ±24 to ±32VDC, <30mA | ±1G to ±35G | High Reliability | ±1% | 0.2 to 4.8VDC into 100K Load | -50 to +90°C | 10 | Electrical | 14 | Solder Pins |
| SA-307HPTX | ±15VDC | ±0.5Thru ±50g | General Purpose | ±0.1% | ±7.5V | -50°C To +85°C | 15 | Electrical | 12 | 10-Pin Connector |
| SA-307LN | ±12 to ±15VDC <30mA | ±0.5G to ±2G | High Level Output | ±1% | <5mV | -40 to +80°C | 5 | Electrical | 12 | Solder Pins |
| SA-307TX | ±15VDC | ±1Thru ±50g | Low Cost | ±0.2% | ±7.5V | -50°C To +85°C | 5 | Electrical | 12 | 10-Pin Connector |
Linear Accelerometer Switches
Columbia Research Labs Accelerometer Switch is designed to interface with electrical or mechanical systems to control, safeguard or warn of undesirable variations in DC and low frequency acceleration. This sensor is available with a selectable switch point, single or Bi-polar switch and choice of input power.
| Model | Excitation | Ranges Available | Details | Overall Accuracy | Output | Temperature Range | VIB Limit g | Weight OZ. | Electrical Connection |
|---|---|---|---|---|---|---|---|---|---|
| SS-108 | +24 To +32VDC(STANDARD) | ±2 Thru ±30g | Control Switch | ±0.15% | 0.2 To9.8VDC | -30°C To +70°C | 10 | 4.6 | 6-Pin Connector |
Angular Accelerometers
Columbia Research Labs offers Angular Accelerometers that use the fluid rotor concept of sensing angular acceleration resulting in a highly accurate precision Angular Accelerometer that provide excellent bias stability and rejection of linear acceleration. We also offer smaller electrically damped Angular Accelerometers that provide exceptional high frequency characteristics for an angular acceleration within its range of sensitivity. Lastly we offer a Variable Range Angular Accelerometer allowing the customer to change the measurement range of the sensor to meet their requirements.
| Model | Excitation | Ranges Available | Details | Overall Accuracy | Output | Temperature Range | VIB Limit g | Damping | Weight OZ. | Electrical Connection |
|---|---|---|---|---|---|---|---|---|---|---|
| SR-100FR | ±15VDC | ±1 Thru ±5 Rad/Sec | High Sensitivity | ±0.1% | ±5V | -40°C To +71°C | 10 | Fluid | 3.5 | 8-Pin Connector |
| SR-107RFR | ±12 To ±15VDC | ±10 Thru ±500 Rad/Sec | High Accuracy | ±0.2% | ±5V | -40°C To +85°C | 15 | Fluid | 10 | 6-Pin Connector |
| SR-107VFR | ±15VDC | ±1 Thru ±100 Rad/Sec | Selectable Operating Range | ±0.2% | ±5V | -40°C To +80°C | 10 | Fluid | 10 | Solder Pins |
| SR-200RFR | +24 To +32VDC | ±0.1 Thru ±5 Rad/Sec | High Sensitivity-Airborne | ±0.2% | 0.2 To 4.8V | -40°C To +80°C | 10 | Fluid | 3.5 | 6-Pin Connector |
| SR-207RFR | +24 To +32VDC | ±10 Thru ±500 Rad/Sec | High Accuracy-Airborne | ±0.2% | 0.2 To 4.8V | -40°C To +85°C | 15 | Fluid | 10 | 6-Pin Connector |
| SR-220RNC | ±15VDC | ±100 Thru ±5K Rad/Sec | Miniature w/Connector | ±0.25% | ±5V | -50°C To +85°C | 10 | Electrical | 4 | 4-Pin Connector |
| SR-220RNP | ±15VDC | ±100 Thru ±5K Rad/Sec | Miniature | ±0.25% | ±5V | -50°C To +85°C | 10 | Electrical | 4 | Solder Pins |