Advertisement
Quick Links
MEMS Vertical
Inclinometer
Copyright ©2009 Durham Geo-Enterprises. All Rights Reserved.
This equipment should be installed, maintained, and operated by technically qualified personnel. Any errors
or omissions in data, or the interpretation of data, are not the responsibility of Durham Geo-Enterprises. The
information herein is subject to change without notification.
This document contains information that is proprietary to Durham Geo-Enterprises and is subject to return
upon request. It is transmitted for the sole purpose of aiding the transaction of business between Durham
Geo-Enterprises and the recipient. All information, data, designs, and drawings contained herein are propri-
etary to and the property of Durham Geo-Enterprises and may not be reproduced or copied in any form, by
photocopy or any other means, including disclosure to outside parties, directly or indirectly, without permis-
sion in writing from Durham Geo-Enterprises.
In-Place
57804199
SLOPE INDICATOR
12123 Harbour Reach Drive
Mukilteo, Washington, USA, 98275
Tel: 425-493-6200 Fax: 425-493-6250
E-mail: solutions@slope.com
Website: www.slopeindicator.com
Advertisement
Related Manuals for SLOPE INDICATOR MEMS
Summary of Contents for SLOPE INDICATOR MEMS
- Page 1 MEMS Vertical In-Place Inclinometer 57804199 Copyright ©2009 Durham Geo-Enterprises. All Rights Reserved. This equipment should be installed, maintained, and operated by technically qualified personnel. Any errors or omissions in data, or the interpretation of data, are not the responsibility of Durham Geo-Enterprises. The information herein is subject to change without notification.
-
Page 2: Table Of Contents
Data Reduction .....9 Connection to Data Logger ..11 MEMS Vertical In-Place Inclinometer, 2009/7/10... -
Page 3: Introduction
In most applications, sensors are connected to a data acquisition system and data processing is com- pleted by a computer program. MEMS Vertical In-Place Inclinometer, 2009/7/10... - Page 4 Middle wheels link sensors. The middle wheel attaches directly to the bottom of the sensor sensor and has a socket for Bottom connecting to the gauge Wheel tube from the sensor below. MEMS Vertical In-Place Inclinometer, 2009/7/10...
- Page 5 Top Suspension Kit downhole during installa- tion. A safety cable is also helpful when sensors are withdrawn from the casing. In-Line Suspension Kit MEMS Vertical In-Place Inclinometer, 2009/7/10...
-
Page 6: Preparations For Installation
Cable ties or vinyl tape to secure cable to gauge tubing. Optional: safety cable connected to bottom sensor to prevent loss of sensors down hole. The safety cable is also helpful when the sensors are withdrawn from the casing. MEMS Vertical In-Place Inclinometer, 2009/7/10... -
Page 7: Installation
Wheel Wheel Orient sensor so that fixed wheel points to direction of movement. Insert sensor wheels into Lower sensor, grooves that are aligned then clamp with expected direction gauge tube. of movement. MEMS Vertical In-Place Inclinometer, 2009/7/10... - Page 8 Secure cables neatly, so that they do not cross each other. Secure cable neatly. Check that fixed wheel Do not allow cable to points to expected interfere with wheels direction of movement MEMS Vertical In-Place Inclinometer, 2009/7/10...
- Page 9 Draw each sensor upwards. 2. Clamp the gauge tube of the sensor below 3. Disconnect the sensor, and repeat. If you intend to reinstall the sen- sors, check that they are still numbered for order of installation MEMS Vertical In-Place Inclinometer, 2009/7/10...
-
Page 10: Manual Readings
±2.2 to 2.3 Volts. The plane 90 degrees clockwise from the fixed wheel is the positive direction. 4. At 25 degrees C, the thermistor reading should be about 1 Vdc. MEMS Vertical In-Place Inclinometer, 2009/7/10... -
Page 11: Data Reduction
Temp-Corrected Tilt = Tilt – (T1 TdegC + T0) Where: Tilt is the value calculated above. T1 and T0 are temperature factors for mm/m or degreesC . TdegC is the temperature in degrees C at the time of reading. MEMS Vertical In-Place Inclinometer, 2009/7/10... - Page 12 Deviation = 162.65 x 2 m mm/m Deviation = 325.30 Deviation = sin(9.3611) x 2000 mm Deviation = 325.31 Calculating Displacement (movement) is the change in deviation: Displacement Displacement = Deviation – Deviation current initial MEMS Vertical In-Place Inclinometer, 2009/7/10...
- Page 13 Positive B-axis readings show tilt in the direction rotated 90 degrees clockwise. Displacement directions follow the same convention. In the drawing below, the sensor is viewed from the top. A+ (Fixed Wheel) A- (Sprung Wheel MEMS Vertical In-Place Inclinometer, 2009/7/10...
-
Page 14: Connection To Data Logger
IPIs with the Campbell Scientific CR1000 datalogger system. A sample CR1000 monitoring program is available at Sample Program: the Slope Indicator website. Go to www.slopeindicator.com. Then navi- gate to Support -> TechNotes -> DataLoggers, and look for sample pro- grams. - Page 15 Wiring Diagram 3 Uniaxial sensor connected to AM16/32 multiplexer Wiring Diagram 4 Biaxial sensor connected to AM16/32 multiplexer MEMS Vertical In-Place Inclinometer, 2009/7/10...
Need help?
Do you have a question about the MEMS and is the answer not in the manual?
Questions and answers