Difference between revisions of "Geophone"

From SEG Wiki
Jump to: navigation, search
(VM 7.23.20)
(VM 7.23.20)
 
(12 intermediate revisions by the same user not shown)
Line 1: Line 1:
 
{{Virtual Museum table
 
{{Virtual Museum table
|Taxonomy=IMG2192
+
|Taxonomy=IMG2188
 
|Item=Geophone
 
|Item=Geophone
|Serial number=C-3
+
|Serial number=NMI-37
|Manufacturer=Walker Hall Sears
 
 
|Donor=Charlie Klutts
 
|Donor=Charlie Klutts
 
|Location=HGC
 
|Location=HGC
 
}}
 
}}
C-3. W ALKER-HALL-SEARS 116 contact hennaphroditic connector. Contacts points are flat and ridged, requiring applied pressure to maintain contact. Half of contacts are oriented in one direction and other half in opposing direction so that mating contacts form a cross. Clamshell construction requires that two connectors be mated on hinged side, pressed together and them secured with double clamps.
+
#37. NML Pendulum Cone Detector -Dr. Eugen Merten – Shell (circa 1950) Cone assembly in center pivots at bottom and, at top, has a wire wound coil which moves horizontally through a permanent magnet Stamped on top of the case is a triangle containing the letter L at top and the numbers 652 at bottom. Below the triangle is stamped MADE IN USA. A assembled cutaway unit is the basic unit removed from case. A horseshoe style magnet, mechanical magnification of motion, long moment arm, (shaped like a cone). Single leaf spring, small moving coil, adjustable resonant frequency, large voltage output, 7.4lbs.
  
[[File:GSH_ IMG2192.jpg|300px]]
+
[[File:GSH_ IMG2188.jpg|300px]]

Latest revision as of 12:05, 23 July 2020

Item Geophone
Item code
Description
Manufacturer
Circa
Model
Donor Charlie Klutts
Location HGC
Serial number NMI-37"NMI" can not be assigned to a declared number type with value -37.
Taxonomy IMG2188
  1. 37. NML Pendulum Cone Detector -Dr. Eugen Merten – Shell (circa 1950) Cone assembly in center pivots at bottom and, at top, has a wire wound coil which moves horizontally through a permanent magnet Stamped on top of the case is a triangle containing the letter L at top and the numbers 652 at bottom. Below the triangle is stamped MADE IN USA. A assembled cutaway unit is the basic unit removed from case. A horseshoe style magnet, mechanical magnification of motion, long moment arm, (shaped like a cone). Single leaf spring, small moving coil, adjustable resonant frequency, large voltage output, 7.4lbs.

GSH IMG2188.jpg