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Help Center175°C Directional Sensor for MWD/LWD Logging Tools
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Product features:
Temperature：0～175℃
Accuracy：
±0.1°for inclination
±0.1°for toolface
±0.3° for azimuth
Accurate measurement under strong vibration environment with 16g peak value（20Hz～100Hz）
Shock resistance 1000g，vibration resistance 20grms
Digital data transmission
With minimum size of Φ31mm×384mm（customized to different needs）
Product applications:
Directional drilling，geological steering
MWD/LWD
Product description
The DS750H directional module is designed to enable high accuracy measurement of the toolface(roll), inclination and azimuth orientation angles in borehole logging and drilling applications.
Using wide 10V~36V DC voltage power supply and adopting UART asynchronous transmitter for digital transmission. It consists of 3-axisfluxgate magnetometersand3-axisaccelerometers.
Provided with temperature compensation function, the DS750H enables the system reach to the accuracy of ±0.1°for inclination, ±0.1°for toolface and ±0.3° for azimuth.
Themaximumtransmissionrateis6timespersecondforthemagnetometerandtheaccelerometeroutputsand4timespersecondfortheorientationangles.
The DS750H communicates with the outside world over a UART interface. It is compatible with TTL and CMOS through logic level, and the baud rate is normally set at 300~115200 to operate. The user can change baud rate by setting data bits in E2PROM.
TWO communication protocols can be selected according to specific requirements:
(1) Binary system: under this system, user needs to send one bit for data request and DS720 responds with multi-bit data package.
(2) ASCII : ASCII protocol acquires data by sending ASCII character to DS750H. data returned from DS750H is transmitted as ASCII data flow，therefore can be easily indicated on the video terminal.
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