Samsung Electronics Co., Ltd.

Yeong Bae Yeo

Jong Myeon Park

Yong Uk Shin

Jae Sung Lee

Jin Tae Kim

Jong Gun Lee

Jung Ki Min

Do Gyoon Kim

Jeo Young Shim

Kyu Tae Kang

Kyu Youn Hwang

Young Seop Seong

Hae Seok Lee

Sil Park

Yong Moo Shin

A test apparatus for measuring the temperature of a reactor using a thermochromic pigment, and a method for controlling the test apparatus are disclosed, based on a technology for irradiating light of different wavelengths on a thermochromic pigment accommodated in a reactor and estimating temperature of the reactor using a difference between absorbance values corresponding to the light of the different wavelengths. The test apparatus includes at least one light emitter configured to irradiate light of different wavelengths onto a chamber included in the reactor, a light receiver configured to receive the light that propagates through the chamber, and a controller configured to measure absorbance values of the thermochromic pigment in correspondence to the different wavelengths of the light, to calculate a difference between the measured absorbance values, and to determine a temperature of the reactor in correspondence to the calculated difference between the absorbance values.

Test apparatus and control method thereof

A fluid analysis cartridge includes a reference well including a macromolecular coloring reagent having an optical characteristic that varies according to a thickness of the reference well, and a test well including a test reagent having an optical characteristic that varies according to a concentration of a component of a fluid sample that reacts with the test reagent and a thickness of the test well.

Fluid analysis cartridge and fluid analysis apparatus having the same

A test apparatus and a control method thereof are provided. The test apparatus is configured to test a sample in a reactor. The test apparatus includes at least one light emitter configured to emit light to chambers of the reactor, a light receiver configured to receive light passed through the chambers while scanning the chambers, and a processor configured to determine a position or an area of a chamber among the chambers, based on light receiving positions of the light receiver, and respective intensities of the received light. The processor is further configured to measure an optical density of light passed through the determined position or the determined area of the chamber.

A microfluidic device includes a chamber configured to accommodate a sample and air, and a detection device provided with a light emitter configured to emit light towards the chamber on a light transmission path and a light receiver configured to receive the light, and further configured to measure an optical density of the chamber to determine whether the sample is accommodated in the chamber based on the received light. A boundary between the sample and the air accommodated in the chamber is provided on the light transmission path.

Microfluidic device and method of detecting sample supplied to the same

A microfluidic system includes a microfluidic device including a chamber which contains a fluid sample, a channel which is connected to the chamber and through which the fluid sample flows, and a valve which controls flow of the fluid sample through the channel; an irradiation apparatus which irradiates electromagnetic energy; and a diffuser which diffuses and distributes the electromagnetic energy irradiated by the irradiation apparatus to an irradiation region of the microfluidic device.

Microfluidic device, light irradiation apparatus, micorfluidic system comprising the same and method for driving the system

Methods and apparatuses for measuring a light absorbance are provided. The method measures light absorbance of at least one detection chamber of a microfluidic device, including the detection chamber and at least one reference chamber. The detection chamber may accommodate a test subject. The method includes detecting a plurality of reference transmitted light intensities for the at least one reference chamber and estimating a value between the plurality of reference transmitted light intensities through nonlinear approximation. The estimated value is then applied to light absorbance measurement of the detection chamber to reduce a light absorbance error of the detection chamber.

Light absorbance measurement method and apparatus

The control method includes obtaining an assumed angle and an actual angle of each of the plurality of rotation angle detecting members, determining a first rotation angle detecting member, the assumed angle and the actual angle of which differ from each other, determining a second rotation angle detecting member having the actual angle closest to the assumed angle of the first rotation angle detecting member, resetting the given count value of the second rotation angle detecting member to a new count value of the first rotation angle detecting member, changing the actual angle of the first rotation angle detecting member via the new count value of the first rotation angle detecting member to reduce an angular error between the assumed angle and the actual angle of the first rotation angle detecting member.

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Seoul, South Korea

Yeong Bae Yeo