Table of Contents

PNI TCM-XB ForceFieldsensor

This Tiltmeter from the company PNI Sensor Corporation and the sensor is the fieldforce-tcm. All information is copied from the homepage of the company.

box, usb-rs232 converter, usb-plug + cap, sensor

Documentation

User manual Download
Data sheetDownload

Software

TCM Studio 3.0

tcmtest.zip

https://github.com/mkoval/FieldforceTCM

http://www.pnicorp.com/products/fieldforce-tcm

http://sine.ni.com/apps/utf8/niid_web_display.model_page?p_model_id=18070

http://answers.ros.org/question/10546/pni-digital-compass-driver/#16791

PRODUCT Specifications

Performance Specifications (1*)

ParameterValue
HeadingAccuracy≤65° of tilt after full range calibration<0.3° rms
≤80° of tilt after full range calibration<0.5° rms
≤5° of tilt after 2D calibration<2.0° rms
≤2 times the calibration tilt angle after limited-tilt calibration (2*)<0.2° rms
Resolution0.1°
Repeatability0.05° rms
Tilt (Pitch & Roll)RangePitch± 90°
Roll± 180°
AccuracyPitch0.2° rms
Roll≤65° of pitch0.2° rms
≤80° of pitch0.4° rms
≤86° of pitch1.0° rms
Resolution0.01°
Repeatability0.05° rms
Maximum Operational Dip Angle (3*)85°
MagnetometersCalibrated Field Range± 125 μT
Resolution0.05 μT
Repeatability± 0.1 μT

(1*) Specifications are subject to change. Assumes the TCM is motionless and the local magnetic field is clean relative to the calibration.
(2*) For example, if the calibration was performed over ±10° of tilt, then the TCM would provide <2° rms accuracy over ±20° of tilt.
(3*) Performance at maximum operational dip angle will be somewhat degraded.

Operating Characteristics

I/O Characteristics

ParameterValue
Communication InterfaceTCM XBBinary RS232 UART
TCM MBBinary CMOS/TTL UART
Communication Rate300 to 115200 baud
Maximum Sample Rate (1*)≈30 samples/sec
Time to Initial Good Data (2*)Initial power up<210 ms
Sleep mode recovery<80 ms

(1*) The maximum sample rate is dependent on the strength of the magnetic field, and typically will be from 25 to 32 samples/sec.
(2*) FIR taps set to “0”.

Power Requirements

ParameterValue
Supply VoltageTCM XB3.6 to 5 VDC (unregulated)
TCM MB3.3 to 5 VDC (unregulated)
Average Current DrawTCM XB@ max. sample rate20 mA typical
@ 8 Hz sample rate16 mA typical
TCM MB@ max. sample rate17 mA typical
@ 8 Hz sample rate13 mA typical
Peak Current DrawDuring application of external power120 mA pk, 60 mA avg over 2 ms
During logical power up/down or Sync Trigger100 mA pk, 60 mA avg over 4 ms
Sleep Mode Current Draw0.3 mA typical

Environmental Requirements

ParameterValue
Operating Temperature (1*)-40C to +85C
Storage Temperature-40C to +85C

(1*) To meet performance specifications, recalibration may be necessary as temperature varies.

TCM Pin Descriptions

Pin number TCM XB
9 pin connectorPigtailed cable wire color
1GNDBlack
2GNDGrey
3GNDGreen
4NCOrange
5NCViolet
6NCBrown
7UART TxYellow
8UART RxBlue
9+5 VDCRed

Source Code