公开(公告)号：US09778074B2

公开(公告)日：2017-10-03

申请号：US13827390

申请日：2013-03-14

Applicant: Rosemount Inc.

Inventor： John Paul Schulte

IPC: G01R35/00 ,  G01D5/24

CPC classification number: G01D5/24

Abstract: A process measurement system includes a sensor for producing a sensor signal as a function of a process parameter and a measurement circuit that converts the sensor signal to measurement data. A control circuit controls the amplitude of the sensor excitation to maximize signal strength over the entire operating ratio range of the sensor. This enhances resolution and noise rejection of the measurement circuit.

公开(公告)号：US20160265995A1

公开(公告)日：2016-09-15

申请号：US14657323

申请日：2015-03-13

Applicant: Rosemount Inc.

Inventor： Rongtai Wang ,  John Paul Schulte

IPC: G01L9/00 ,  H03M3/00

CPC classification number: H03M3/39 ,  G01D5/24 ,  G01L9/0072 ,  G01L9/0075 ,  G01L9/12 ,  H03M3/356 ,  H03M3/376 ,  H03M3/494

Abstract: A single plate capacitance sensor includes a sensor capacitor and a reference capacitor that share common plate. A capacitance-to-digital sigma delta modulator provides separate sensor excitation and reference excitation signals to the sensor capacitor and the reference capacitor to provide high resolution detection. Programmable ratio-metric excitation voltages and adaptive excitation voltage sources can be used to enhance modulator performance.

Abstract translation: 单板电容传感器包括传感器电容器和共用共用板的参考电容器。 电容数字Σ-Δ调制器向传感器电容器和参考电容器提供单独的传感器激励和参考激励信号，以提供高分辨率检测。 可编程比率公制激励电压和自适应激励电压源可用于增强调制器性能。

公开(公告)号：US20210096036A1

公开(公告)日：2021-04-01

申请号：US16588489

申请日：2019-09-30

Applicant: Rosemount Inc.

Inventor： John Paul Schulte ,  Eugene Korolev

IPC: G01L27/00 ,  G01L13/02 ,  G01L11/00 ,  G01L9/00 ,  G01L19/00 ,  G01M3/02 ,  G01L19/06

Abstract: An industrial process differential pressure sensing device includes a housing having first and second isolation cavities that are respectively sealed by first and second diaphragms, a differential pressure sensor, a static pressure sensor, an eddy current displacement sensor, and a controller. The static pressure sensor is configured to output a static pressure signal that is based on a pressure of fill fluid in the first isolation cavity. The differential pressure sensor is configured to output a differential pressure signal that is indicative a pressure difference between the first and second isolation cavities. The eddy current displacement sensor is configured to output a position signal that is indicative of a position of the first isolation diaphragm relative to the housing. The controller is configured to detect a loss of a seal of the isolation cavity based on the position signal, the static pressure signal and the differential pressure signal.

公开(公告)号：US09869599B2

公开(公告)日：2018-01-16

申请号：US14501617

申请日：2014-09-30

Applicant: Rosemount, Inc.

Inventor： John Paul Schulte ,  David Glen Tyson

IPC: G01L9/12

CPC classification number: G01L9/12

Abstract: A pressure sensing system includes a hot zone electronics module, a cool zone electronics module and a plurality of conductors that connect the hot zone electronics module to the cool zone electronics module. The hot zone electronics module includes a capacitive pressure sensor and an oscillator that provides an oscillating signal to the capacitive pressure sensor. The hot zone electronics module provides at least one DC sensor signal. The cool zone electronics module converts the at least one DC sensor signal into a pressure value and provides a DC power signal. The plurality of conductors convey the DC power signal to the hot zone electronics module and convey the at least one DC sensor signal to the cool zone electronics module.

公开(公告)号：US09628104B2

公开(公告)日：2017-04-18

申请号：US14657323

申请日：2015-03-13

Applicant: Rosemount Inc.

Inventor： Rongtai Wang ,  John Paul Schulte

IPC: G01L9/12 ,  H03M3/00 ,  G01D5/24

CPC classification number: H03M3/39 ,  G01D5/24 ,  G01L9/0072 ,  G01L9/0075 ,  G01L9/12 ,  H03M3/356 ,  H03M3/376 ,  H03M3/494

Abstract: A single plate capacitance sensor includes a sensor capacitor and a reference capacitor that share common plate. A capacitance-to-digital sigma delta modulator provides separate sensor excitation and reference excitation signals to the sensor capacitor and the reference capacitor to provide high resolution detection. Programmable ratio-metric excitation voltages and adaptive excitation voltage sources can be used to enhance modulator performance.

公开(公告)号：US20140266259A1

公开(公告)日：2014-09-18

申请号：US13827390

申请日：2013-03-14

Applicant: ROSEMOUNT INC.

Inventor： John Paul Schulte

IPC: G01R35/00

CPC classification number: G01D5/24

Abstract: A process measurement system includes a sensor for producing a sensor signal as a function of a process parameter and a measurement circuit that converts the sensor signal to measurement data. A control circuit controls the amplitude of the sensor excitation to maximize signal strength over the entire operating ratio range of the sensor. This enhances resolution and noise rejection of the measurement circuit.

Abstract translation: 过程测量系统包括用于产生作为过程参数的函数的传感器信号的传感器和将传感器信号转换成测量数据的测量电路。 控制电路控制传感器激励的振幅，以使传感器的整个工作比范围内的信号强度最大化。 这增强了测量电路的分辨率和噪声抑制能力。

公开(公告)号：US11243134B2

公开(公告)日：2022-02-08

申请号：US16588489

申请日：2019-09-30

Applicant: Rosemount Inc.

Inventor： John Paul Schulte ,  Eugene Korolev

IPC: G01L27/00 ,  G01L9/00 ,  G01L11/00 ,  G01L13/02 ,  G01L19/00 ,  G01L19/06 ,  G01M3/02

Abstract: An industrial process differential pressure sensing device includes a housing having first and second isolation cavities that are respectively sealed by first and second diaphragms, a differential pressure sensor, a static pressure sensor, an eddy current displacement sensor, and a controller. The static pressure sensor is configured to output a static pressure signal that is based on a pressure of fill fluid in the first isolation cavity. The differential pressure sensor is configured to output a differential pressure signal that is indicative a pressure difference between the first and second isolation cavities. The eddy current displacement sensor is configured to output a position signal that is indicative of a position of the first isolation diaphragm relative to the housing. The controller is configured to detect a loss of a seal of the isolation cavity based on the position signal, the static pressure signal and the differential pressure signal.

公开(公告)号：US20160091380A1

公开(公告)日：2016-03-31

申请号：US14501617

申请日：2014-09-30

Applicant: Rosemount, Inc.

Inventor： John Paul Schulte ,  David Glen Tyson

IPC: G01L9/12

CPC classification number: G01L9/12

Abstract: A pressure sensing system includes a hot zone electronics module, a cool zone electronics module and a plurality of conductors that connect the hot zone electronics to the cool zone electronics. The hot zone electronics module includes a capacitive pressure sensor and an oscillator that provides an oscillating signal to the capacitive pressure sensor. The hot zone electronics provides at least one DC sensor signal. The cool zone electronics module converts the at least one DC sensor signal into a pressure value and provides a DC power signal. The plurality of conductors convey the DC power signal to the hot zone electronics and convey the at least one DC sensor signal to the cool zone electronics.

Abstract translation: 压力感测系统包括热区电子模块，冷区电子模块和将热区电子连接到冷区电子装置的多个导体。 热区电子模块包括电容式压力传感器和向电容式压力传感器提供振荡信号的振荡器。 热区电子设备提供至少一个DC传感器信号。 冷区电子模块将至少一个DC传感器信号转换成压力值并提供DC功率信号。 多个导体将DC电力信号传送到热区电子装置，并将至少一个DC传感器信号传送到冷区电子装置。

公开(公告)号：US09136886B2

公开(公告)日：2015-09-15

申请号：US13792659

申请日：2013-03-11

Applicant: Rosemount Inc.

Inventor： John Paul Schulte

IPC: H04L25/03 ,  H04B1/04

CPC classification number: H04B1/0475

Abstract: A processor transmitter includes a sensor, a first signal path, a second signal path, and an output summing circuit. The sensor produces a process signal that is a function of a process parameter. The first signal path digitally compensates the process signal. The second signal path digitally filters the process signal and subjects the process signal to less delay than the first signal path. The output summing circuit sums the digitally compensated process signal from the first signal path and the digitally filtered process signal from the second signal path to produce a fast digital compensated process signal.

Abstract translation: 处理器发射机包括传感器，第一信号路径，第二信号路径和输出求和电路。 传感器产生作为过程参数的函数的过程信号。 第一个信号路径数字地补偿过程信号。 第二信号路径对过程信号进行数字滤波，并使处理信号对第一信号路径的延迟较小。 输出求和电路将来自第一信号路径的数字补偿处理信号和来自第二信号路径的数字滤波处理信号相加，以产生快速数字补偿处理信号。

公开(公告)号：US20140254717A1

公开(公告)日：2014-09-11

申请号：US13792659

申请日：2013-03-11

Applicant: ROSEMOUNT INC.

Inventor： John Paul Schulte

IPC: H04B1/04

CPC classification number: H04B1/0475

Abstract: A processor transmitter includes a sensor, a first signal path, a second signal path, and an output summing circuit. The sensor produces a process signal that is a function of a process parameter. The first signal path digitally compensates the process signal. The second signal path digitally filters the process signal and subjects the process signal to less delay than the first signal path. The output summing circuit sums the digitally compensated process signal from the first signal path and the digitally filtered process signal from the second signal path to produce a fast digital compensated process signal.

Abstract translation: 处理器发射机包括传感器，第一信号路径，第二信号路径和输出求和电路。 传感器产生作为过程参数的函数的过程信号。 第一个信号路径数字地补偿过程信号。 第二信号路径对过程信号进行数字滤波，并使处理信号对第一信号路径的延迟较小。 输出求和电路将来自第一信号路径的数字补偿处理信号和来自第二信号路径的数字滤波处理信号相加，以产生快速数字补偿处理信号。