Aiming to more easily perform calibration of a sensor output from a pressure sensor, the calibration being necessitated due to the occurrence of sedimentation, a resonance point measurement unit (122) measures a resonance point of a diaphragm (112) on the basis of the result obtained by performing measurement of a constant pressure using the pressure sensor while a power supply frequency is changed, a characteristic calculation unit (123) calculates, on the basis of the measured resonance point, an elastic modulus of the diaphragm (112) at the time of the measurement of the resonance point, and a correction unit (124) calculates a corrected sensor sensitivity resulting from correcting a sensor sensitivity of a sensor chip (101) on the basis of the elastic modulus calculated by the characteristic calculation unit (123).

The present calibratable tire gauge has a first unit nose piece and a second unit nose piece located partially within a main outer enclosure of the gauge. A clicker mechanism located may allow a user to utilize a special tool to unlock the second unit nose piece with respect to the first unit nose piece and immobilize the second unit nose piece with respect to the main outer enclosure. Once unlocked, a user may twist the scale bar of the gauge to move the first unit nose piece independent from the second unit nose piece. As a result, the measured pressure on the scale bar is altered as a result of the read line being lowered or raised with respect to the main outer enclosure.

The present calibratable tire gauge has a first unit nose piece and a second unit nose piece located partially within a main outer enclosure of the gauge. A clicker mechanism located may allow a user to utilize a special tool to unlock the second unit nose piece with respect to the first unit nose piece and immobilize the second unit nose piece with respect to the main outer enclosure. Once unlocked, a user may twist the scale bar of the gauge to move the first unit nose piece independent from the second unit nose piece. As a result, the measured pressure on the scale bar is altered as a result of the read line being lowered or raised with respect to the main outer enclosure.

Using a calibration sensor to calibrate an unstable sensor from a network of unstable sensors. Approaches for using a calibration sensor to calibrate the unstable sensor initially identify an unstable sensor in a geographic region to be calibrated by a calibration sensor using a model of environmental conditions for the geographic region, and then use the model to determine how to calibrate the unstable sensor using the calibration sensor.

Provided is a computer-implemented method for preforming negative pressure testing, also known as an inflow test. In the method, a non-transitive computer readable medium storing a pressure analysis program for analysis of pressure data is provided that when executed, causes an information processing apparatus connected to an image display screen, to receive at least one of a plurality of inputs from a user, receive a plurality of pressure values from a sensor filter at least a subset of the plurality of pressure values, select one of a plurality of negative pressure testing models; run the filtered subset of pressure values through the selected negative pressure testing model; and store the values generated by the negative pressure testing model.

Provided is a computer-implemented method for preforming negative pressure testing, also known as an inflow test. In the method, a non-transitive computer readable medium storing a pressure analysis program for analysis of pressure data is provided that when executed, causes an information processing apparatus connected to an image display screen, to receive at least one of a plurality of inputs from a user, receive a plurality of pressure values from a sensor filter at least a subset of the plurality of pressure values, select one of a plurality of negative pressure testing models; run the filtered subset of pressure values through the selected negative pressure testing model; and store the values generated by the negative pressure testing model.

A diagnostic apparatus for a fluidic actuator, in particular a fluidic valve drive, which has an actuator element displaceable into different positions (x1, x2, xp1, xp2), wherein the diagnostic apparatus is configured to provide a first break-away pressure measured value (pi1) for a first position of the actuator element. The diagnostic apparatus is further configured to determine, based on the first break-away pressure measured value (pi1) and break-away pressure reference information (pri) stored in the diagnostic apparatus, a first break-away pressure prediction value (pp1) for a first prediction position (xp1) of the actuator element, the first prediction position being different from the first position (x1).

A diagnostic apparatus for a fluidic actuator, in particular a fluidic valve drive, which has an actuator element displaceable into different positions (x1, x2, xp1, xp2), wherein the diagnostic apparatus is configured to provide a first break-away pressure measured value (pi1) for a first position of the actuator element. The diagnostic apparatus is further configured to determine, based on the first break-away pressure measured value (pi1) and break-away pressure reference information (pri) stored in the diagnostic apparatus, a first break-away pressure prediction value (pp1) for a first prediction position (xp1) of the actuator element, the first prediction position being different from the first position (x1).

A blood pressure monitor, particularly of the type having an inflatable cuff communicating with a pressure sensor and suitable for home use, may be calibrated by applying a sealed canister containing gas at a known pressure to a port so as to apply the known pressure to the pressure sensor, and comparing a pressure signal from the pressure sensor with the known pressure so as to determine a calibration error of the sensor and/or adjust the calibration of the sensor, e.g. by electronically adjusting the sensor. Several canisters may be used to calibrate the sensor across a range of pressures, each canister having a different known pressure. Each canister is preferably ruptured when attached to the port and is not re-usable, and may comprise an identifier such as an electronically readable identifier which is stored in a memory in association with the value of the known pressure within the canister. Temperature sensing means may be provided whereby the pressure reading is adjusted to compensate for temperature, e.g. of the gas released from the canister. The monitor may comprise means for sensing mechanical shock and alerting a user or remote monitoring personnel to provide an indication that recalibration is required.

A blood pressure monitor, particularly of the type having an inflatable cuff communicating with a pressure sensor and suitable for home use, may be calibrated by applying a sealed canister containing gas at a known pressure to a port so as to apply the known pressure to the pressure sensor, and comparing a pressure signal from the pressure sensor with the known pressure so as to determine a calibration error of the sensor and/or adjust the calibration of the sensor, e.g. by electronically adjusting the sensor. Several canisters may be used to calibrate the sensor across a range of pressures, each canister having a different known pressure. Each canister is preferably ruptured when attached to the port and is not re-usable, and may comprise an identifier such as an electronically readable identifier which is stored in a memory in association with the value of the known pressure within the canister. Temperature sensing means may be provided whereby the pressure reading is adjusted to compensate for temperature, e.g. of the gas released from the canister. The monitor may comprise means for sensing mechanical shock and alerting a user or remote monitoring personnel to provide an indication that recalibration is required.