Solid State Vertical Reference

ADS-C132-1A   Single Axis
ADS-C232-1A   Dual Axis

Description:

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The Watson Vertical Reference is a solid state gyro system used to measure angular displacement and rate, especially where dynamic motion may interfere. This is where the effects of lateral acceleration severely limit performance capability of an ordinary accelerometer or pendulous device. The Watson vertical reference provides exceptional performance in this area.

The Watson Vertical Reference achieves improved performance by integrating a Watson angular rate gyro to get an estimate of attitude and then comparing it with the output from an inclinometer (pendulum) to find the error. The error is filtered over a long time constant and subtracted from the rate gyro output to correct biases as a closed loop error correction system. The Watson Vertical Reference can be a functional replacement for a mechanical vertical gyro. Mechanical gyros are often more expensive and cannot provide the reliability and life of this solid-state sensor.

Click here to see our VRS line of vertical gyros.

Applications:

The Watson vertical reference has been used to stabilize or control ships and submersibles, to instrument automobiles, to stabilize antennas and many other applications. The vertical reference is especially suited for applications where there is limited bank and elevation such as ships, underwater vehicles, land vehicles, and camera stabilization. This is because the vertical reference uses a linear coordinate system. To do any better, a full three axis system would be required. Consult the factory about your application.

Features:

•		All Solid State
•		High Reliability
•		Low Cost
•		One Year Warranty
•		Low Power
•		Engineering Support

Vertical Reference Specifications
Attitude		ADS-C132-1A Single Axis	ADS-C232-1A Dual Axis
	Range: Bank	Not available	±30°
	Range: Elevation	±50°	±30°
	Analog Scale Factor:	5°/V	3°/V	±10V Output
	Accuracy: Static	±0.3°	±0.3°
*	Accuracy: Dynamic	±2%	±2%
Angular Rate
	Range: Roll	Not available	±100°/sec
	Range: Pitch	±100°/sec	±100°/sec
	Analog Scale Factor:	10°/sec/V	10°/sec/V	±10V Output
	Scale Factor Accuracy:	1%	1%	Constant temperature
	Bias: Roll	Not available	< ±1.5°/sec
	Bias: Pitch	< ±1.5°/sec	< ±1.5°/sec
	Non-Linearity:	< 0.05%	< 0.05%	Full scale range
	Bandwidth:	50 Hz	50 Hz
Environmental
	Temperature: Operating	-40°C to +85°C	-40°C to +85°C
	Temperature: Storage	-55°C to +85°C	-55°C to +85°C
	Vibration: Operating	2.5g rms	2.5g rms	20 Hz to 2 kHz
	Vibration: Survival	10g rms	10g rms	20 Hz to 2 kHz
	Shock: Survival	500g	500g	10mS ½ sine wave
Electrical
	Input Power: Positive	12 to 16VDC (0.5W)	12 to 16VDC (0.9W)
	Input Power: Negative	-12 to -16VDC (0.5W)	-12 to -16VDC (0.9W)
	Input Current:	30mA @ ±15VDC	60mA @ ±15VDC
	Analog Output:	±10VDC	±10VDC
	Output Impedance:	1000 Ohm	1000 Ohm
Physical
	Axis Alignment:	< 2°	< 2°
	Size: Including Mounting Flanges	2.25"W x 4.25"L x 2.50"H	3.13"W x 4.5"L x 3.12"H
	Weight:	9oz (0.6lb)	15oz (0.9lb)
	Connection:	9 pin male "D" subminiature	9 pin male "D" subminiature
*	Actual accuracy can be calculated as the listed percentage multiplied by the change in value over the entire dynamic maneuver.
•	Specifications are subject to change without notice.
•	This product may be subject to export restrictions. Please consult the factory.

ADS Vertical Gyro Dimensions

Single Axis ADS-C132-1A

Dual Axis ADS-C232-1A