Integrated circuitry for controlling analysis of a fluid
View Patent ↗Circuitry for processing signals used to determine characteristics of a fluid under-test is provided. The circuitry includes a compensation device and integrated circuitry for interfacing with a tuning fork that is capable of being in contact with the fluid under-test and the compensation device. The compensation device is configured to differentially process a signal output of the tuning fork, and the differential processing of the compensation device is actively controlled by the integrated circuitry so as to produce a processed signal. The processed signal defines the characteristics of the fluid under-test, and the compensation device includes capacitive matching circuitry. Also provided are systems that incorporate the circuitry.
1. Circuitry for processing signals used to determine characteristics of a fluid under-test, comprising:
a compensation device; and
integrated circuitry for interfacing with a tuning fork that is capable of being in contact with the fluid under-test and the compensation device, the compensation device being configured to differentially process a signal output of the tuning fork, the differential processing of the compensation device being actively controlled by the integrated circuitry so as to produce a processed signal, the processed signal defining the characteristics of the fluid under-test, and wherein the compensation device includes capacitive matching circuitry.
2. Circuitry for processing signals used to determine characteristics of a fluid under-test as recited in claim 1 , wherein the integrated circuitry is an application specific integrated circuit (ASIC).
3. Circuitry for processing signals used to determine characteristics of a fluid under-test as recited in claim 1 , wherein the capacitive matching circuitry includes one of a capacitive circuit, a varicap circuit, and a bridge circuit.
4. Circuitry for processing signals used to determine characteristics of a fluid under-test as recited in claim 1 , wherein the differential processing of the signal magnifies relevant portions of the signal and minimizes non-relevant portions of the signal to produce the processed signal.
5. Circuitry for processing signals used to determine characteristics of a fluid under-test as recited in claim 4 , wherein a magnitude of the processed signal identifies a viscosity of the fluid under-test.
6. Circuit for processing signals used to determine characteristics of a fluid under-test as recited in claim 4 , wherein a frequency center point of the processed signal identifies a density of the fluid under-test.
7. Circuitry for processing signals used to determine characteristics of a fluid under-test as recited in claim 4 , wherein an amount of the compensation applied to the compensation device by the integrated circuit identifies a dielectric constant of the fluid under-test.
8. A system for determining characteristics of a fluid under-test, comprising:
a flexural resonator, the flexural resonator capable of being at least partially submerged in the fluid under-test;
a compensation device; and
integrated circuitry for interfacing with the flexural resonator and the compensation device, the compensation device being configured to differentially process a signal output from the flexural resonator, the differential processing of the compensation device being actively controlled by the integrated circuitry so as to produce a processed signal, the processed signal defining the characteristics of the fluid under-test, and wherein the compensation device includes capacitive matching circuitry.
9. A system for determining characteristics of a fluid under-test as recited in claim 8 , wherein the integrated circuitry is an application specific integrated circuit (ASIC).
10. A system for determining characteristics of a fluid under-test as recited in claim 8 , wherein the capacitive matching circuitry includes one of a capacitive circuit, a varicap circuit, and a bridge circuit.
11. A system for determining characteristics of a fluid under-test as recited in claim 8 , wherein the differential processing of the signal magnifies relevant portions of the signal and minimizes non-relevant portions of the signal to produce the processed signal.
12. A system for determining characteristics of a fluid under-test as recited in claim 8 , wherein the flexural resonator is a tuning fork.
13. Circuitry for processing signals used to determine characteristics of a fluid under-test, comprising:
integrated circuitry for interfacing with a tuning fork that is capable of being in contact with the fluid under-test, the integrated circuitry including a compensation device, the compensation device being configured to differentially process a signal output of the tuning fork, the differential processing of the compensation device being actively controlled by the integrated circuitry so as to produce a processed signal, the processed signal defining the characteristics of the fluid under-test, and wherein the compensation device includes capacitive matching circuitry.
14. Circuitry for processing signals used to determine characteristics of a fluid under-test as recited in claim 13 , wherein the integrated circuitry is an application specific integrated circuit (ASIC).
15. Circuitry for processing signals used to determine characteristics of a fluid under-test as recited in claim 13 , wherein the capacitive matching circuitry includes one of a capacitive circuit, a varicap circuit, and a bridge circuit.
16. Circuitry for processing signals used to determine characteristics of a fluid under-test as recited in claim 13 , wherein the differential processing of the signal magnifies relevant portions of the signal and minimizes non-relevant portions of the signal to produce the processed signal.