公开(公告)号：US20240322754A1

公开(公告)日：2024-09-26

申请号：US18187767

申请日：2023-03-22

Applicant: MOCON, INC.

Inventor： Charles Willcox ,  David Jennings ,  Christopher Fields

IPC: H03B5/04 ,  F21V23/00

CPC classification number: H03B5/04 ,  F21V23/003 ,  F21Y2111/00 ,  H03B2200/0002

Abstract: A photoionization detector sensor equipped with a temperature compensating and output adjustable ultraviolet lamp driver for supplying an alternating current signal to the ultraviolet lamp effective to light the ultraviolet lamp with direct current supplied from both a first variable voltage supply circuit and a second temperature sensitive fixed voltage supply circuit, and method of standardizing output of the photoionization detector sensor by adjusting the voltage supplied to the driver by the first variable voltage supply circuit so that future reported values will more closely approximate actual values.

公开(公告)号：US12146854B2

公开(公告)日：2024-11-19

申请号：US18176624

申请日：2023-03-01

Applicant: Mocon, Inc.

Inventor： Charles Willcox ,  David Jennings ,  Christopher Fields

IPC: G01N27/64 ,  G01N27/66 ,  H01J47/02

Abstract: A photoionization detector comprised of a sensor having at least a collector electrode and a grounding electrode, a gas discharge lamp that ionizes molecules of interest to create ionized molecules and electrons, and an amplifier connected to the collector electrode. Each of the collector electrode and the grounding electrode include a feed-thru pin, an inner trace surrounding the feed-thru pin, an outer trace surrounding the inner trace, wherein the outer trace on each electrode is comprised of the same material, a channel between the inner trace and the outer trace, wherein the channel is comprised of a different material than the outer trace and the inner trace, and a bridge connecting the outer trace with the inner trace. The ionized molecules are collectable by a bias electrode and electrons are collectable by the collector electrode.

公开(公告)号：US20240313733A1

公开(公告)日：2024-09-19

申请号：US18184037

申请日：2023-03-15

Applicant: MOCON, INC.

Inventor： Charles Willcox ,  David Jennings ,  Christopher Fields

IPC: H03G3/30

CPC classification number: H03G3/3084 ,  H03G3/3036 ,  H03G2201/103

Abstract: A photoionization detector sensor equipped with an adjustable gain amplifier, and method of standardizing output of the photoionization detector sensor by adjusting the gain so that an actual test value expected to produce a known anticipated value matches the anticipated value.

公开(公告)号：US20240295528A1

公开(公告)日：2024-09-05

申请号：US18176624

申请日：2023-03-01

Applicant: Mocon, Inc.

Inventor： Charles Willcox ,  David Jennings ,  Christopher Fields

IPC: G01N27/64

CPC classification number: G01N27/64

Abstract: A photoionization detector comprised of a sensor having at least a collector electrode and a grounding electrode, a gas discharge lamp that ionizes molecules of interest to create ionized molecules and electrons, and an amplifier connected to the collector electrode. Each of the collector electrode and the grounding electrode include a feed-thru pin, an inner trace surrounding the feed-thru pin, an outer trace surrounding the inner trace, wherein the outer trace on each electrode is comprised of the same material, a channel between the inner trace and the outer trace, wherein the channel is comprised of a different material than the outer trace and the inner trace, and a bridge connecting the outer trace with the inner trace. The ionized molecules are collectable by a bias electrode and electrons are collectable by the collector electrode.