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MICROTESLA DIGITIZED MODULE WITH PROCESSOR
General Description / Key Features / Specifications
In 2008 MicroTesla deployed the Digitized Module with Processor. This new product is specifically designed for MWD Applications. It combines MicroTesla's proprietary sensor technology with built-in analog to digital conversion, an onboard microprocessor and a dedicated power supply. We have also designed this tool to include a third party MWD system master processor.
Not only does the MDMP combine all of the directional data acquisition functions with the complete MWD telemetry functions, into a short rugged package, it also represents the migration of our products from a discrete component, through hole board design to an integrated circuit, surface mount board design. This results in the most reliable instrument available in the industry. The key features of this product include:
Physical
- Integrated directional sensor and MWD system master in the same chassis
- Length: 26"
- Diameter: 1.3"
- Compatible with gamma modules
- Proprietary MicroTesla Fluxgate Magnetometer design
- Quartz Flexure or Solid state accelerometer available
Electrical
- New MicroTesla SMT electronics packaging with floating board option
- Operating Voltage Range: 10V - 40V
- Power Usage: 0.25W Idle, 1.0W on Mags, Accel power dependent on model
- Digital Interfaces: serial RS-232, serial logic level or SPI
- MicroProcessor and power supply built-in
- K-Factors downloaded directly into module memory
- Switching circuitry providing efficient sensor power management
Environmental
- All boards designed for high temp (175°C)
- Encapsulated board mounting option
- Accuracy: Q-flex Accelerometers (± 0.1° Inc @ 90° Inc, ± 0.25° Inc @ 2° Inc)
- Accuracy: Magnetometers (± 0.5°AZI @ 90°Inc)
- Rotation Measurement (0 -120 RPM)
Mechanical and Environmental Specifications
| Parameter | Minimum | Maximum | Units |
| Outside Diameter* | 1.3 3.3 |
inches cm |
|
| Length* | 24.0 60.9 |
28.0 71.1 |
inches cm |
| Operating Temperature | 0 32 |
175 347 |
ºC ºF |
| Survival Temperature | -40 -40 |
185 365 |
ºC ºF |
| Vibration, Random (limited by accelerometers) | 20 |
g RMS, 15-500 Hz |
|
| Shock (limited by accelerometers) | 1000 |
g, 0.5 mSec, half-sine |
*Dimensions do not include pressure housings, centralizers or axial shock absorbers.
Instrument Accuracy Specifications
| Parameter | Maximum | Units |
| Inclination accuracy, absolute Inclination spread on axial rotation at 90º Inc |
±0.10 <0.30 |
degrees degrees |
| Tool Face accuracy, axial rotation at 90º Inc | ±1.0 |
degrees |
| Total g field accuracy | ±3.0 |
mG |
| Azimuth accuracy, absolute, 90º Inc | ±0.50 |
degrees |
| Azimuth spread axial rotation at 90º Inc | <1.0 |
degrees |
| Total H field accuracy, absolute | ±0.30 |
mgauss |
