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CPL490 Capacitive Sensor Module

///CPL490 Capacitive Sensor Module

CPL490 Capacitive Sensor Module

Capacitive Sensor Drivers
Elite Series: CPL490
Very High Resolution, High Bandwidth
with 2nd Generation Probe

Extremely high-resolution, high-speed capacitive sensors for ultimate precision.

CPL490 Documents For Downloads:

Label Sensor Manual EnglishUser Manual

clear label sensor catalogCapacitive Sensor Catalog

label sensor CE documentCE Declaration of Conformity

 

Description

Ultra Precise, Very High-Speed Measurements

  • 50 kHz Bandwidth
  • Very High Resolution, (Probe/Range dependent, see Ranges/Resolutions below for specifics)
    • 0.002% @ 50 kHz typical (as low as 260 picometers)
    • 0.0007% @ 15 kHz typical (as low as 90 picometers)
    • 0.0004% @ 1 kHz typical (as low as 50 picometers)
  • User selectable bandwidth (1 kHz, 10 kHz, 15 kHz, 50 kHz)
  • Linearity: 0.2%
  • Small phase shift – excellent for servo applications
  • 2nd Generation Probes for Maximum Performance

Convenient Output Interface and Range Selections

  • Measurement Ranges Available: 10, 50, 100 µm (0.4, 2, 4 mils)
  • ±10 V Output
  • Easy National Instruments DAQ Connection via 68-Pin connector

Versatile, Useful Features

  • Visual Range Indicator
  • Adjustable Zero
  • Zero Adjust Disable
  • Single or Multiple Channel enclosures
  • Front Panel Ground Connection

Life-Cycle Status: Active

Specifications

Typical specifications. Resolution and linearity depend on probe, range, and bandwidth. See Probes and Ranges for details.

Typical Resolution* @15 kHz,* 0.0007% F.S. rms
Bandwidths (-3dB) (PCB Dip-Switch) 50 kHz, 15 kHz, 10 kHz, 1 Hz
Linearity 0.2%F.S.
Error Band 0.3%F.S.
Maximum Drift, Typical* 0.04%F.S./°C
BNC Output Voltage ±10 V
BNC Output Impedance 0 ohms, 15 mA max
Rear Panel National Instruments
Interface Connector Output Voltage
Differential ±10 V
Operating Temperature 15-40 °C
Multiple Channel Operation Up to 3 Channels
Contact us if more are needed

*Probe/Range dependent, see Range/Resolution table below

CPL490 Measurement Ranges/Resolutions – Probe Dependent

Listed specifications assume a 2 meter probe cable; flat measurement area diameter at least 1.3 times larger than the Sensing Area diameter; and no customizations.

1 mil = 0.001″

probe-sensor cal Noise image

Integral filters included in the CPL490

CPL490 uses 2nd Generation Probes

Sensing Area
Diameter

mm
(Probe Model)

Measurement Range

Resolution* @ Bandwidth

Maximum
Drift of
Probe

% F.S./°C

2nd Generation Probe

Range
Type
Range
µm
mils
Near Gap
µm
mils
1 kHz
nm
µin
10 kHz
nm
µin
15 kHz
nm
µin
50 kHz
nm
µin
0.5
(2G-C8-0.5)
Fine 10
0.4
20
0.8
0.05
0.002
0.07
0.003
0.09
0.004
0.26
0.010
0.04
Standard 50
2.0
25
1.0
0.17
0.007
0.27
0.011
0.35
0.014
1.0
0.040
0.02
Extended 100
4.0
50
2.0
0.38
0.015
0.80
0.031
1.0
0.039
3.3
0.14
0.03
1.2
(2G-C8-1.2)
Fine 50
2.0
25
1.0
0.15
0.006
0.20
0.008
0.22
0.009
0.63
0.025
0.02
Standard 100
4.0
50
2.0
0.33
0.013
0.40
0.016
0.52
0.021
1.7
0.065
0.02
Extended 200
8.0
100
4.0
0.68
0.027
1.0
0.040
1.3
0.050
3.8
0.15
0.02

* Resolution values are RMS. Peak-to-peak values are typically 8-10 times greater than the RMS values.
In high EMI conditions (10 V/m), output DC level may shift and noise may rise to 0.5 VRMS (2.5% resolution)
Custom calibrations can achieve exceptional resolution performance