Specification :

ER-MP1 wireless pulse generator while drilling is the fluid pulse generator with a positive pulse, sitting button under it , small diameter, can be salvaged . Signal input by probe can be coded to control servo valve and through the signal valve turn to a drilling fluid pressure pulse and then transmit to the ground. It has a compact structure, the use of a wide range and simple maintenance, long life, low power and so on. The pulse generator not only has been linked to GEO-Link Probe and Probe QDT-MWD to go down, but also been linked to other probe-line to work by changing the interface. Its diameter was 48 mm, it is applied to a wide range of hole sizes, and can meet the short-radius whipstocking .
Performance parameters:
Maximum operating ambient temperature: 125 
Maximum pressure of outside cylinder : 120MPa
Material of outside cylinder : Titanium Alloy
Outside diameter: 48mm ( 17 / 8 " )
Pulse generator length: 1.15m
Design depth: 5000m
Mud displacement: 10 ~ 55 l / s ( depending on the drill collar size)
Equipment pressure drop: 50 ~ 200 PSI ( depending on size and displacement of mud drill collar )
Mud signal strength: 20 ~ 100 PSI
Mud Viscosity: e 140 ( s)
Sand-mud: e 1%
Slurry density: e 1.7 g / cc
The smallest outside diameter of non-magnetic drill collar : 3-1 / 2 inches
Average power consumption d 4W