公开(公告)号：US12025633B2

公开(公告)日：2024-07-02

申请号：US17652526

申请日：2022-02-25

Applicant: Vibration Measurement Solutions, Inc.

Inventor： George V. Zusman

IPC: G01P15/125 ,  G01P15/097 ,  G01P15/12 ,  G01P21/00 ,  G01D1/16 ,  G01D5/244 ,  G01R1/30

CPC classification number: G01P15/125 ,  G01P15/097 ,  G01P15/123 ,  G01P21/00 ,  G01D1/16 ,  G01D5/24476 ,  G01R1/30

Abstract: A two-wire reference accelerometer includes integrated mechanical transducing and self-calibration capability based on gravity only. The reference accelerometer includes an external two-wire connector and an internal three-wire transducer that responds to both steady-state acceleration and time-varying accelerations by producing a modulated transducer output signal having a steady-state waveform when the transducer senses steady state acceleration and a time-varying waveform when the transducer senses time-varying accelerations. A signal conditioning circuit conditions the transducer output signal and applies it to the two-wire electrical connector as a modulated reference accelerometer output signal. The transducer and the signal conditioning circuit can operate without modification in either a DUT calibration mode or a self-calibration mode. The self-calibration mode determines the 1 g output sensitivity of the reference accelerometer from first and second readings of the reference accelerometer output signal taken while the reference accelerometer rests on a non-accelerating surface in respective non-inverted and inverted orientations.

公开(公告)号：US20230273235A1

公开(公告)日：2023-08-31

申请号：US17652526

申请日：2022-02-25

Applicant: Vibration Measurement Solutions, Inc.

Inventor： George V. Zusman

IPC: G01P15/125 ,  G01P15/12 ,  G01P15/097 ,  G01P21/00

CPC classification number: G01P15/125 ,  G01P15/123 ,  G01P15/097 ,  G01P21/00

Abstract: A two-wire reference accelerometer includes integrated mechanical transducing and self-calibration capability based on gravity only. The reference accelerometer includes an external two-wire connector and an internal three-wire transducer that responds to both steady-state acceleration and time-varying accelerations by producing a modulated transducer output signal having a steady-state waveform when the transducer senses steady state acceleration and a time-varying waveform when the transducer senses time-varying accelerations. A signal conditioning circuit conditions the transducer output signal and applies it to the two-wire electrical connector as a modulated reference accelerometer output signal. The transducer and the signal conditioning circuit can operate without modification in either a DUT calibration mode or a self-calibration mode. The self-calibration mode determines the 1 g output sensitivity of the reference accelerometer from first and second readings of the reference accelerometer output signal taken while the reference accelerometer rests on a non-accelerating surface in respective non-inverted and inverted orientations.

公开(公告)号：US09939315B2

公开(公告)日：2018-04-10

申请号：US14821727

申请日：2015-08-08

Applicant: Vibration Measurement Solutions, Inc.

Inventor： George V. Zusman

IPC: G01H11/08 ,  G01K1/02

CPC classification number: G01H11/08 ,  G01K1/024

Abstract: A sensor with integrated mechanical transducing and temperature monitoring capability is provided. The sensor includes housing containing a transducer, a temperature sensor with associated bias, a summing circuit, and a two-wire cable connector. The transducer is operable to output a dynamic transducer waveform that corresponds to dynamic mechanical perturbations sensed by the transducer. The temperature sensor is operable to output a quasi-static temperature waveform that corresponds to temperatures sensed by the temperature sensor. The summing circuit is operable to combine the transducer waveform and the temperature waveform into a composite modulated voltage bias output signal or a modulated current bias output signal. The two-wire cable connector is accessible on an outside of the housing and is connectable to a two wire cable that delivers power to the sensor from a power source and delivers the composite output signal from the sensor to a remote data acquisition circuit.

公开(公告)号：US20170038247A1

公开(公告)日：2017-02-09

申请号：US14821727

申请日：2015-08-08

Applicant: VIBRATION MEASUREMENT SOLUTIONS, INC.

Inventor： George V. Zusman

IPC: G01H11/08 ,  G01K13/00

CPC classification number: G01H11/08 ,  G01K1/024

Abstract: A sensor with integrated mechanical transducing and temperature monitoring capability is provided. The sensor includes housing containing a transducer, a temperature sensor with associated bias, a summing circuit, and a two-wire cable connector. The transducer is operable to output a dynamic transducer waveform that corresponds to dynamic mechanical perturbations sensed by the transducer. The temperature sensor is operable to output a quasi-static temperature waveform that corresponds to temperatures sensed by the temperature sensor. The summing circuit is operable to combine the transducer waveform and the temperature waveform into a composite modulated voltage bias output signal or a modulated current bias output signal. The two-wire cable connector is accessible on an outside of the housing and is connectable to a two wire cable that delivers power to the sensor from a power source and delivers the composite output signal from the sensor to a remote data acquisition circuit.

Abstract translation: 提供具有集成的机械传感和温度监测功能的传感器。 传感器包括容纳换能器的壳体，具有相关偏压的温度传感器，加法电路和双线电缆连接器。 换能器可操作地输出对应于由换能器感测到的动态机械扰动的动态换能器波形。 温度传感器可操作以输出对应于由温度传感器感测的温度的准静态温度波形。 求和电路可操作以将传感器波形和温度波形组合成复合调制电压偏置输出信号或调制电流偏置输出信号。 双线电缆连接器可在外壳外部接近，可连接到从电源向传感器供电的双线电缆，并将传感器的复合输出信号传送到远程数据采集电路。

公开(公告)号：US09478912B1

公开(公告)日：2016-10-25

申请号：US14725772

申请日：2015-05-29

Applicant: Vibration Measurement Solutions, Inc.

Inventor： George V. Zusman ,  Val J. Pollak

IPC: H01R13/64 ,  H01R13/642 ,  H01R43/16

CPC classification number: H01R13/642 ,  H01R13/645 ,  H01R43/16 ,  H01R43/18

Abstract: An electrical connector includes a machined metal contact housing having a contact housing cavity surrounded by a contact housing wall. Two or more electrical contacts are disposed within the contact housing cavity. A polarization alignment key is disposed on an inside surface of the contact housing wall. A key-retaining pocket on the contact housing intersects an inside surface of the contact housing wall to form a longitudinal slot opening between the key-retaining pocket and the contact housing cavity. The key is mounted on the contact housing by virtue of a portion thereof being disposed in the key-retaining pocket. The electrical connector may be manufactured by (1) machining the key-retaining pocket in a metal blank from which the contact housing will be formed, (2) machining the contact housing cavity in the blank so as to intersect the key-retaining pocket, (3) mounting the key, and (4) mounting the electrical contacts.

Abstract translation: 电连接器包括加工的金属触点壳体，其具有由接触壳体壁包围的触点壳体腔。 两个或更多个电触头设置在触点壳体腔内。 极化对准键设置在触点壳体壁的内表面上。 接触壳体上的钥匙保持袋与触点壳体壁的内表面相交，以在键保持口和触头壳体腔之间形成纵向开口。 钥匙由于其一部分设置在钥匙保持袋中而安装在触点外壳上。 电连接器可以通过以下方式制造：（1）将密封保持袋加工在金属坯料中，金属坯料将从其中形成接触壳体，（2）加工坯件中的接触壳体空腔以与钥匙保持袋相交， （3）安装钥匙，（4）安装电气触点。

公开(公告)号：US20210131885A1

公开(公告)日：2021-05-06

申请号：US16675687

申请日：2019-11-06

Applicant: Vibration Measurement Solutions, Inc.

Inventor： George V. Zusman

IPC: G01L1/16 ,  G01L23/22

Abstract: A piezoelectric pressure sensor is characterized by a piezoelectric transducer having substantially parallel piezoelectric plate faces oriented in planes that extend substantially parallel a principal longitudinal axis of the sensor, a pair of clamping members engaging the piezoelectric plate faces, a membrane cap covering the clamping members and mounted on a stem to define an enclosed protective chamber that isolates the piezoelectric transducer and the clamping members from an environment outside the membrane cap. The membrane cap has a membrane wall engaging outside faces of the clamping members. The membrane wall undergoes inward deflections in response to pressure increases in the environment outside the membrane cap. The clamping members undergo corresponding inward deflections in response to the inward deflections of the membrane wall. The inward deflections of the clamping members act on the piezoelectric plate faces, resulting in deformations of the piezoelectric transducer that produce corresponding electrical signals.

公开(公告)号：US10996120B1

公开(公告)日：2021-05-04

申请号：US16675687

申请日：2019-11-06

Applicant: Vibration Measurement Solutions, Inc.

Inventor： George V. Zusman

IPC: G01L1/16 ,  G01L23/22 ,  F02D35/02

Abstract: A piezoelectric pressure sensor is characterized by a piezoelectric transducer having substantially parallel piezoelectric plate faces oriented in planes that extend substantially parallel a principal longitudinal axis of the sensor, a pair of clamping members engaging the piezoelectric plate faces, a membrane cap covering the clamping members and mounted on a stem to define an enclosed protective chamber that isolates the piezoelectric transducer and the clamping members from an environment outside the membrane cap. The membrane cap has a membrane wall engaging outside faces of the clamping members. The membrane wall undergoes inward deflections in response to pressure increases in the environment outside the membrane cap. The clamping members undergo corresponding inward deflections in response to the inward deflections of the membrane wall. The inward deflections of the clamping members act on the piezoelectric plate faces, resulting in deformations of the piezoelectric transducer that produce corresponding electrical signals.