MWD Components Well Borehole Logging Angle Directional Downhole Sensor

Product Detail

1.INTRODUCTION:


The DS560 miniature directional sensor is designed to enable high accuracy measurement of the roll, inclination and azimuth orientation angles of a system to which it is mounted.

2. SYSTEM SPECIFICATIONS

SN	Items		Value
1	Input Voltage Range		+5~+12V
2	Input Current		30mA
3	Temperature Range(temperature compensation)		25?~135?
4	Inclination Range		0°~180°
5	Azimuth Range		0°~360°
6	Roll (Toolface) Range		0°~360°
7	Inclination (Drift)		±0.2°
8	Azimuth	Inclination=5°	±2°
		Inclination=10°	±1°
		Inclination=90°	±0.5°
9	Roll (Toolface)		±0.2°
10	Logic Level		TTL/CMOS(+5V)
11	Baud Rate		9600~115200
12	Leads		20”×4
13	Data output speed		16 Samples/sec(Baud rate is 115200)

Table1. DS560 System Specifications

3.Electrical Interfaces

Pin Name	Wire Color	Function
VIN	Red	+5~+12VDC
GND	Black	Ground
RX	Orange	Serial In
TX	Yellow	Serial Out

Table2. Electrical Interface

4 Computer Interface

The computer interface of the DS560 System is a TTL level serial interface. In the standard configuration, data is transmitted to the DS560 on pin RX and transmitted out of the DS560 on pin TX. The default baud rate is 9600 with one stop bit and no parity.

In order to communicate with an external personal computer (PC), the TTL levels of the DS560 must be shifted to the RS232 levels used by the serial ports on PCs.The best way to determine if communication with the DS560 has been established is to observe the presence of the DS560 sign on message that is transmitted at 9600 baud when power is turned on. The sign on message for the DS560 is :

TOKENSUN: S/N XXXXXXX

Ver: 1.0

In the above messages the x’s represent the unit serial number.

DS560 Mechanical Diagram