US 12,742,681 B2 · Optical detector for detecting gas and suspended matter

Abstract

An optical detector for detecting gas and suspended matter therein includes a test chamber, at least one light source, a sensing object, a test optical sensor and a processor. The test chamber accommodates a gas to be analyzed. The at least one light source emits an incident light that enters the test chamber. The sensing object is exposed to gas in the test chamber, receives the incident light, and reflects or transmits a portion of the incident light to form a test light. The test optical sensor receives the test light and generates a detected spectral signal. The processor receives the detected spectral signal and calculates a detection result according to the detected spectral signal.

Claims19

Dependent claims

An optical detector, comprising:

a gas chamber;
a light source coupled to the gas chamber and configured to emit an incident light that enters the gas chamber;
a sensing object exposed to a gas in the gas chamber, the sensing object having an optical property that depends on a composition of the gas, the sensing object being configured to receive a first portion of the incident light where the optical property transforms the first portion of the incident light into a test light;
a test optical sensor configured to receive the test light and generate a detected spectral signal that represents a spectral distribution of the test light;
and
a processor coupled to the test optical sensor, the processor being configured to receive the detected spectral signal and to calculate a detection result according to the detected spectral signal.

3 more elements

An optical detector comprising:

at least one light source configured to emit an incident light;
a test chamber configured to accommodate a gas to be analyzed and coupled to receive at least a portion of the incident light from the at least one light source;
a reflective sensing object exposed to the gas in the test chamber, the reflective sensing object having a reflective property that depends on a composition of the gas, the reflective sensing object being configured to receive the incident light in the test chamber and reflect the incident light to form a test reflected light;
a test optical sensor configured to receive the test reflected light to generate a detected spectral signal that represents a spectral distribution of the test reflected light;
and
a processor coupled to the test optical sensor, the processor being configured to receive the detected spectral signal and calculate a detection result according to the detected spectral signal.

3 more elements

Dependencies are inferred from the claim text.

Optical detector for detecting gas and suspended matter

Life of this patent

Optical detector for detecting gas and suspended matter

Life of this patent

Abstract

Claims19