Detector array and cross-talk linearity connection
First Claim
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1. An IR microscope for directing radiation on a sample to be analyzed, the IR microscope comprising:
- a detector having an array of individual detector elements, said array comprising from 3 to 100 individual elements, each detector element having a detector element output;
a detection circuit coupled to each detector element output, such that each detector element has its own associated detection circuit, each of said detection circuits including an amplifier for receiving the detector element output and generating an amplified output signal;
a summation device coupled to each of said amplifier outputs and receiving each of the amplified output signals; and
a feedback loop directing an output signal of the summation device to each of said amplifiers.
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Abstract
An infrared imaging microscope, particularly of the type used to carry out FT-IR measurement, including a detector in the form of a relatively small detector array of individual detector elements. The outputs of the detector elements are fed in parallel to an electronic circuit for processing. The relatively small array allows the outputs to be processed without need for multiplexing thereby avoiding reduction in signal-to-noise. The detector array may substantially range from about 3 to about 100 detector elements, and is preferably in a range from about 16 to about 64 detector elements.
34 Citations
19 Claims
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1. An IR microscope for directing radiation on a sample to be analyzed, the IR microscope comprising:
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a detector having an array of individual detector elements, said array comprising from 3 to 100 individual elements, each detector element having a detector element output; a detection circuit coupled to each detector element output, such that each detector element has its own associated detection circuit, each of said detection circuits including an amplifier for receiving the detector element output and generating an amplified output signal; a summation device coupled to each of said amplifier outputs and receiving each of the amplified output signals; and a feedback loop directing an output signal of the summation device to each of said amplifiers. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. An IR microscope for directing radiation on a sample to be analyzed, the IR microscope comprising:
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a detector having an array of individual detector elements, each detector element having a detector element output; said array comprising from 3 to 100 individual elements; a detection circuit coupled to each detector element output, such that each detector element has its own associated detection circuit, each of said detection circuits including, a summation device receiving the outputs from the detector elements and a feedback loop directing at least a portion of an output signal of the summation device to each of said detector element outputs. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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Specification