Method of preparation miniaturized sensors on basis of fluids and arrangement of the measuring system

A measuring system arrangement for a miniaturized sensor for use with fluids, comprising:

• a capillary (21) having a channel (59) extending therethrough, said capillary having a first upper funnel shaped inlet end (60) communicating with the channel at a capillary constriction (20), and an opposite second outlet orifice (61) communicating with the channel;
• measuring electrode means connected to the capillary for controlling a flow of fluid through the capillary and a droplet formed at the outlet orifice;
• said measuring electrode means includes a spike (22) for being received into the inlet end of the capillary and for constricting a passage of fluid through the capillary constriction, and movement control means (25) connected to the spike for moving the spike in the inlet end toward and away from the capillary constriction;
• bubble dislodging means (44) for tapping said capillary to dislodge a bubble of fluid from the outlet orifice;
• and
• a packing piece (106) pierced by the long thin spiked end for sealing the capillary constriction closed when the packing piece is engaged against the capillary constriction by the movement control means.

A measuring system arrangement for a miniaturized sensor for use with fluids, comprising:

• a capillary (21) having a channel (59) extending therethrough, said capillary having a first upper funnel shaped inlet end (60) communicating with the channel at a capillary constriction (20), and an opposite second outlet orifice (61) communicating with the channel;
• measuring electrode means connected to the capillary for controlling a flow of fluid through the capillary and a droplet formed at the outlet orifice;
• said measuring electrode means includes a spike (22) for being received into the inlet end of the capillary and for constricting a passage of fluid through the capillary constriction, and movement control means (25) connected to the spike for moving the spike in the inlet end toward and away from the capillary constriction;
• and
• lifting means (30) engageable with the movement control means, for removing the spike from the capillary constriction.

A measuring system arrangement for a miniaturized sensor for use with fluids, comprising:

• a capillary (21) having a channel (59) extending therethrough, said capillary having a first upper funnel shaped inlet end (60) communicating with the channel at a capillary constriction (20), and an opposite second outlet orifice (61) communicating with the channel;
• measuring electrode means connected to the capillary for controlling a flow of fluid through the capillary and a droplet formed at the outlet orifice;
• said measuring electrode means includes a spike (22) for being received into the inlet end of the capillary and for constricting a passage of fluid through the capillary constriction, and movement control means (25) connected to the spike for moving the spike in the inlet end toward and away from the capillary constriction;
• means forming an inner reservoir (29) around the inlet end for supplying fluid to the inlet end;
• and
• means defining an external reservoir (37) connected to the inner reservoir for supplying fluid to the inner reservoir, the measuring electrode means including a first electric contact (34) electrically connected to the spike and a second electric contact (35) extending into the inner reservoir.

A measuring system arrangement for a miniaturized sensor for use with fluids, comprising:

• a capillary (21) having a channel (59) extending therethrough, said capillary having a first upper funnel shaped inlet end (60) communicating with the channel at a capillary constriction (20), and an opposite second outlet orifice (61) communicating with the channel;
• measuring electrode means connected to the capillary for controlling a flow of fluid through the capillary and a droplet formed at the outlet orifice;
• said measuring electrode means includes a spike (22) for being received into the inlet end of the capillary and for constricting a passage of fluid through the capillary constriction, and movement control means (25) connected to the spike for moving the spike in the inlet end toward and away from the capillary constriction;
• means forming an inner reservoir (29) around the inlet end for supplying fluid to the inlet end;
• and
• a reducing piece (41) having an opening for receiving the capillary and an engagement end for insertion into measuring equipment for receiving droplets of fluid from the outlet orifice.

A measuring system arrangement for a miniaturized sensor for use with fluids, comprising:

• a capillary (21) having a channel (59) extending therethrough, said capillary having a first upper funnel shaped inlet end (60) communicating with the channel at a capillary constriction (20), and an opposite second outlet orifice (61) communicating with the channel;
• and
• measuring electrode means connected to the capillary for controlling a flow of fluid through the capillary and a droplet formed at the outlet orifice;
• an enlargement in the channel on an opposite side of the inlet end from the capillary constriction, the capillary constriction having a smaller diameter than the enlargement;
• and
• an upwardly extending second orifice (110) communicating with the enlargement for outletting bubbles of gas from the channel.

A measuring system arrangement for a miniaturized sensor for use with fluids, comprising:

• a capillary (21) having a channel (59) extending therethrough, said capillary having a first upper funnel shaped inlet end (60) communicating with the channel at a capillary constriction (20), and an opposite second outlet orifice (61) communicating with the channel;
• measuring electrode means connected to the capillary for controlling a flow of fluid through the capillary and a droplet formed at the outlet orifice;
• said measuring electrode means includes a spike (22) for being received into the inlet end of the capillary and for constricting a passage of fluid through the capillary constriction, and movement control means (25) connected to the spike for moving the spike in the inlet end toward and away from the capillary constriction;
• means forming an inner reservoir (29) around the inlet end for supplying fluid to the inlet end;
• and
• the inner reservoir and movement control means being mounted on a pushbutton movably connected to the capillary for moving the spike into the capillary constriction.

A measuring system arrangement for a miniaturized sensor for use with fluids, comprising:

• a capillary (21) having a channel (59) extending therethrough, said capillary having a first upper funnel shaped inlet end (60) communicating with the channel at a capillary constriction (20), and an opposite second outlet orifice (61) communicating with the channel;
• measuring electrode means connected to the capillary for controlling a flow of fluid through the capillary and a droplet formed at the outlet orifice;
• said measuring electrode means includes a spike (22) for being received into the inlet end of the capillary and for constricting a passage of fluid through the capillary constriction, and movement control means (25) connected to the spike for moving the spike in the inlet end toward and away from the capillary constriction;
• and
• the measuring electrode means including a first electrical contact (101) extending into the funnel shaped inlet end (60) for making electrical contact with fluid in the inlet end, and a second electrical contact (102) connected to the spike.