公开(公告)号：US3696399A

公开(公告)日：1972-10-03

申请号：US3696399D

申请日：1970-09-11

Applicant: COULTER ELECTRONICS

Inventor： KLEIN ROBERT T ,  KREISELMAN ROBERT L

IPC: G01N15/12 ,  H03K13/02

CPC classification number: G01N15/1227

Abstract: By expanding the input to an A to D converter, and also establishing an offset or low end threshold for pulse data as it is being processed by the A to D converter to a multichannel pulse amplitude memory, the fixed number of memory channels are effectively expanded and a selectively small portion of the channel range can be examined in increased detail. This method and apparatus differs from the prior art range expanding in that it operates upon pulse data during its collection and not after receipt in the memory; thus, a plurality of memory channels can act as a single and wider channel.

Abstract translation: 通过将输入扩展到A到D转换器，并且还在由A到D转换器处理到多通道脉冲幅度存储器的同时建立脉冲数据的偏移或低位阈值，固定数量的存储器通道被有效地扩展 并且可以更详细地检查通道范围的选择性小部分。 该方法和装置与现有技术的范围扩大不同之处在于，其在收集期间在脉冲数据上操作，而不是在接收到存储器中之后操作; 因此，多个存储器通道可以用作单个和更宽的通道。

公开(公告)号：US3622795A

公开(公告)日：1971-11-23

申请号：US3622795D

申请日：1968-10-10

Applicant: COULTER ELECTRONICS

Inventor： DORMAN ERVIN L JR ,  KLEIN ROBERT I ,  KREISELMAN ROBERT L ,  COULTER WALLACE H

IPC: G01J3/51 ,  G01G3/02 ,  G01G3/08 ,  G01G23/14 ,  G01N21/05 ,  G01N21/85 ,  G01N21/26 ,  E03B ,  G01N33/16

CPC classification number: G01G23/14 ,  G01G3/02 ,  G01G3/08 ,  G01N21/05 ,  G01N21/85 ,  Y10T137/86405

Abstract: Apparatus to be used in making hemoglobin determinations of samples of blood and other colorimetric fluid tests, which includes colorimetric computing circuitry and a flow-through cuvette in the same housing, the flow-through cuvette being normally covered by a lid which is raised by the operator when pouring the test sample into the cuvette. The construction is such that the technician need use only one hand for raising the lid and pouring the sample, leaving the other hand free for making notes or other purpose. The lid movement initiates programming means and the operating cycle, which includes: draining a blanking fluid with which the cuvette is filled between the cycles of use of the apparatus, accepting the sample poured into the cuvette, making the colorimetric measurement thereof, emptying the sample from the cuvette, rinsing the cuvette, and refilling the cuvette with the blanking fluid for the next measuring cycle. All fluid movement is achieved through the use of a system operating in conjunction with suitable valves, solenoids and at least one spring-return operated, piston-type liquid dispenser. A novel cuvette construction provides concentric fluid-receiving mouths leading to inner and outer receptacles, the inner being the receptacle for the sample fluid, the outer being an overflow basin. The receptacles lead to respective independent drains, the inner being provided with a light transmitting section at which the fluid is traversed by a beam of radiant energy.