CXTA Solid State, Analog Series Small, Low-Cost, Rugged Rapid Response 75 Range Fully Conditioned Analog Outputs Applications CXTA01, CXTA02 The CXTA single- and dual-axis Scissor Lifts CXTA Series maintains its accuracy analog tilt sensors offer resolution, and stability over temperature: < 2 Static Platforms accuracy, and fast response in an of arc over the range 0 to 70 C. The inexpensive, easy-to-use package. Survey Leveling Equipment output can be user corrected for The CXTA series design centers on a temperature with the T option, yield- highly stable silicon micro-machined Laser Leveling ing accuracy to within 0.5 over the capacitive inclination sensor ele- angular range. ment. The CXTA series is fully signal conditioned with high level analog A typical configuration using CXTA output(s), and optional analog sensors is shown below. Each mod- temperature signal. ule is factory calibrated, tested and includes a calibration sheet. The Micro-machined devices, perfected in automotive safety applications, offer module can be securely attached us- ing screws or adhesive. The CXTA is several distinct advantages over fluid, available in a standard nylon or high electrolytic, and pendulum-based temperature aluminum package. sensors. Like other solid-state devices, they are more reliable than their me- chanical counterparts. In a package smaller than many pendulum or fluid raw sensing elements, completely integrated electronics eliminate the need for external components. Unlike other micro-machined devices, the Power 6-30V Supply GND A/D Xout CXTA02 Converter Yout Temp (optional) Typical CXTA02 Configuration i n f o a c e i n n a . c o m w w w . a c e i n n a . c o m 6 0 2 0 - 0 0 1 3 - 0 1 R e v E Specifications CXTA01 CXTA02 Remarks Performance Linear Angular Range () 20 20 Full Angular Range () 75 75 Angular Resolution ( rms) 0.05 0.05 O Sensitivity - small angles (mV/ ) 35 2 35 2 Actual value provided with Sensor O Sensitivity Drift (%/ C) 0.01 0.01 Zero Angle Voltage (Volts) 2.5 0.15 2.5 0.15 Actual value provided with Sensor O Zero Angle Drift (mV/ C) 1.0 1.0 Typical (O O Zero Angle Drift / C) 0.03 0.03 Typical O Non-Linearity () < 0.4 < 0.4 Over 20 not including Arcsine Error Bandwidth (Hz) 50 50 Settling Time (sec) 0.2 0.2 Figure 1 Alignment () 1 1 Typical Sensitivity (V/rad) Cross-axis Sensitivity (%)) < 5 < 5 Inclusive of alignment error Environment O Storage Temperature ( C) -55 to +85 -55 to +85 Nylon Package O Operating Temperature ( C) -40 to +85 -40 to +85 Nylon Package O Storage Temperature ( C) -55 to +105 -55 to +105 -AL High Temperature Package O Operating Temperature ( C) -40 to +105 -40 to +105 -AL High Temperature Package Non-Operating Vibration (g rms) 10 10 20-2 kHz random Shock (g) 2000 2000 1 ms, half sine Electrical Supply Voltage (VDC) 6 - 30 6 - 30 Unregulated Current (mA) 4 8 Physical Size (Nylon Package) .78 x 1.75 x 1.07 (1.98 x 4.45 x 2.72 cm) (Aluminum Package) .95 x 2.00 x 1.20 (2.41 x 5.08 x 3.05 cm) Weight (Nylon Package) 1.38 oz (43 gm) (Aluminum Package) 2.09 oz (65 gm) Specifications subject to change without notice Using the CXTA Sensor Principle of Operation For angles less than 20, the sine The voltage response of the CXTA is function can be approximated by a linear The CXTA Series Tilt Sensors use a micro- relationship between the Vout and the tilt proportional to the sine of the tilt angle. machined acceleration sensing element angle in degrees. Thus the simplified with a DC response to measure Accurately measuring tilt angle involves equation for small angle in degrees is: inclination relative to gravity. The solving the equation shown in Figure 1. When the tilt angle is less than 20, the response of the tilt sensor depends on the To solve this equation the Zero Angle magnitude of gravity parallel to the sensor error from linear approximation will be Voltage and Sensitivity must be less than 2%. This is convenient when element. The output of the tilt sensor will determined prior to use, and the sensitivity you dont have or want the computing be an offset voltage plus the voltage re- must be converted to V/rad. ACEINNA power to calculate an inverse sine function. sponse proportional to the amount of provides this infor - mation on a gravity measured by the sensor. Pin Color Function calibration sheet with its CXTA products. 1 Red Power 2 Black Ground 3 White Roll 4 Yellow Pitch 5 Green Temp Ordering Information Model Axes Linear Range Full Range Resolution CXTA01 X 20 75 0.05 CXTA02 X,Y 20 75 0.05 OPTIONS -T Temperature Sensor Internal -AL High Temperature Aluminum Package Optional Aluminum Package Pin Diagram A C E I N N A , I n c . w w w . a c e i n n a . c o m 6 0 2 0 - 0 0 1 3 - 0 1 R e v E C Call factory for other configurations