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Sensors FAQ
Sensors FAQ
Find FAQs
AMR Sensors
Characteristics
What is the sensitivity range for Murata AMR sensors?
How can AMR sensors be differentiated from hall ICs, which are used to detect vertical magnetic fields?
How does current consumption change with input voltage?
What is AMR?
What is mT?
What is Hon?
What is Hoff?
Dispersion of sensitivity
Temperature characteristic
Response Cycle
What is Permalloy?
Elements and IC's
What is Hysteresis?
What is Chattering?
Quality Reliability
Can Murata AMR sensors be used in vehicles?
Mounting
Part Numbers
Which sensors are recemmended for detecting fast rotations?
What is the difference between magnetic switches for open/close detection and for rotational detection?
Environment
Precautions on Using
Configurations Material
How are Murata AMR sensors packed?
Operating Circuit
What is Supply voltage?
Current comsumption (Icc)
What is internal sampling?
Output voltage
Others
Does Murata supply magnets to be used in conjunction with AMR sensors?
How to select magnets
Shock Sensors
Characteristics
How does it detect acceleration?
What is the acceleration measurement resolution of the shock sensor?
Can shock sensor detect inclination?
Can shock sensor measure atmospheric and physical pressures?
How much is the current consumption?
What are the basic characteristics and size?
Can the strength of shock be determined?
If by combining 0 degree and 90 degree products, can 2 axis detections be possible?
Part Numbers
Is series of automotive shock sensor available?
Configurations Material
What is the construction material?
Operating Circuit
Is there a need for peripheral circuit?
Is there a need for peripheral circuit?
Others
What is the main market?What kind of market is it being shipped for?
Is there a specificed IC?
Can sample or evaluation board be provided?
Where is the production location?
Does the output correspond to digital?
Infrared Sensors
Characteristics
Hoｗ far is detection distance of Pyroelectric infrared sensor?
How about operating principle of Pyroelectric infrared sensor?
Quality Reliability
Mounting
How we can do soldering for a Pyroelectric infrared sensor?
Can we flow (wave soldering) the Pyroelectric infrared sensor ?
What level is the MSL of a pyroelectric infrared sensor?
*MSL = Moisture Sensitivitiy Level
Precautions on Using
Would detection distance be changed by temperature of the environment?
Is Pyroelectric infrared sensor influenced by sunlight and Headlights for automobiles?
Is a pyroelectric infrared sensor influenced by the air flow from heaters and air conditioners?
Is Pyroelectric infrared sensor influenced by wet humid condition?
Is Pyroelectric infrared sensor influenced by electromagnetic wave of mobile phone and so on?
Can we detect Infrared ray through glass and acrylic plate?
Can we use Pyroelectric infrared sensor outside?
Is fresnel-lens characteristics influenced by scratch and polluted?
Is the pyroelectric infrared sensor influenced by peripheral components?
Can Pyroelectric infrared sensor react human only?
Configurations Material
Can the high density polyethylene material of the Fresnel lens be changed?
Operating Circuit
How much is consumption current of Pyroelectric infrared sensor ?
Other
How long has Murata manufactured Pyroelectric infrared sensor ?
Can a pyroelectric infrared sensor detect human who are not moving at all (stationary)?
Can a distance be measured by the Pyroelectric infrared sensor ?
Rotary Position Sensors
Characteristics
What are the features?
Quality Reliability
What are the major specifications?
What is the output precision?
Mounting
Environment
What are its environmental considerations?
What is its operational temperature range?
Configurations Material
What are the product overview and principle?
What are its dimensions and weight?
Is it waterproof or dustproof?
Ultrasonic Sensors
Characteristics
What are Decay time?
How much power does an ultrasonic sensor consume?I know it depends on the circuit in which it is used, but when used for xx-meter detection, what are the power supply voltage and consumption current?
Is it possible to make the sensor directive by an electrical means?
Is it possible to recognize the size and shape of the object detected?
Is it possible to detect short distances?
Are there ways to narrow directivity?
Do the ultrasonic waves interfere with remote control communication using 40kHz waves?
Do they interfere only with sound waves?
Is it possible to detect human bodies?
What is the distance that can be detected?
Is it possible to detect an object that is placed behind a film?
What are the differences among ultrasonic sensors for transmitters, receivers, and dual use?
What about directivity?
What is the resolution limit?
(What is the size in mm for the steps of distance detection?)
Is it possible to detect the double-feeding of extremely thin paper?
Is there any difference of Max Input Voltage between Open-Structure and SMD type?
Can SMD type detect gesture?
Quality Reliability
Can Murata ultrasonic sensors be used under water?
Is it possible to prevent false detection of dirt and dust?
Do Murata ultrasonic sensors cause health problems?
Do ultrasonic waves affect the health of the human body or animals (pets)?
Mounting
How can I use Murata ultrasonic sensors?
Part Numbers
Where are Murata ultrasonic sensors produced, in Japan or abroad?
Precautions on Using
If a sensor is encapsulated in another case using a potting agent for improved waterproof performance, its sound pressure and sensitivity may be affected.
How can I avoid such problems?
Operating Circuit
The power supply in the “Reference Circuit” document shows “±15V.” How can I make a -15 V power supply?
In double-feeding detection, high levels of noise are generated, reducing the S/N ratio. How can this noise be reduced?
Acceleration Sensors
Characteristics
How to measure direction
How to mesure inclination with an accelerometer?
What is the difference between an accelerometer and an inclinometer?
What is ratiometricity and ratiometric error?
How long is the accelerometer available measurement ranges?
What is zero point and zero point (offset, bias) error?
What is non-linearity?
What is cross-axis sensitivity?
If the max accelerometer cross-axis sensitivity is ± 5%, what is the angle between the direction of measurement (z axis) and the primary axis of sensitivity?
As Murata Electronics Oy's datasheet indicates, accelerometers cross-axis sensitivity can be up to 5%, when used for dual axial tilt measurement application. How can I measure and compensate for this effect?
If your resolution is 0.1% (of full scale) , it means that you have a resolution of 0.001*90 = 0.09 Degrees. However, your repeatability is 0.03 Degrees. How can repeatability be less than resolution?
May I have some exemplary characteristics of linearity, zero point temperature dependency, and sensitivity error as a function of temperature.
When using the SPI to communicate with the inclinometer, what is the maximum sampling rate?
Mounting
I would like to get some package information of your products on a component level. Is there a lid over the top or is the part filled with solid material? If there is a void (air or gas) inside how large is it?
Operating Circuit
What is the damping factor of the inclinometer SCA610-CB1H1G above 1,000 Hz?
Are the SCA610/620 products known to have any EMI emission problems?
What is the input for the self test pin of SCA610-products family?
Is the self test pin input DC or AC and what is the maximum input quantity?
Does Murata Electronics Oy have recommended circuits between an ECU and the self test pin of SCA610- product family?
Does the SCA610 work with 3V power supply?
Others
How does the field programmable temperature compensation work?
Does Murata offer pedometer solutions?
Inclinometers
Characteristics
How to measure direction
How to mesure inclination with an accelerometer?
What is the difference between an accelerometer and an inclinometer?
What is ratiometricity and ratiometric error?
What is sensitivity and sensitivity error?
What is zero point and zero point (offset, bias) error?
Is the internal temperature compensation of SCA100T turned on automatically?
Is it possible for user to compensate zero point temperature drift using built-in temperature sensor the readings of which are available through an SPI interface?
What is the stability of offset calibration accuracy in the SCA61T inclinometer?
What is non-linearity?
Is it also possible to get inclinometers with linearity error of no more than 0.5mg in ±0.1g measurement range and what is linearity change as a function of temperature (if any) ?
What is cross-axis sensitivity?
If the max accelerometer cross-axis sensitivity is ± 5%, what is the angle between the direction of measurement (z axis) and the primary axis of sensitivity?
If your resolution is 0.1% (of full scale) , it means that you have a resolution of 0.001*90 = 0.09 Degrees. However, your repeatability is 0.03 Degrees. How can repeatability be less than resolution?
Is the analog output capable of higher resolution than the SPI interface?
May I have some exemplary characteristics of linearity, zero point temperature dependency, and sensitivity error as a function of temperature.
When using the SPI to communicate with the inclinometer, what is the maximum sampling rate?
In the SCA61T Series, the digital output has an 11 bit resolution. In the SCA 103T the resolution is 12 bits? Is this correct?
Murata Electronics Oy has mentioned, that SCA61T and SCA100 have 8Hz frequency response with 0.002° resolution of analog output and in datasheets the frequency response of both of them is said to be 8...28Hz. What is the difference?
Mounting
I would like to get some package information of your products on a component level. Is there a lid over the top or is the part filled with solid material? If there is a void (air or gas) inside how large is it?
Operating Circuit
How does the frequency response look for Murata Electronics Oy's inclinometers?
Does the inclinometer SCA61T-FAHH1G have a single pole frequency response?
Is it possible to decrease SCA 61T's frequency response with an additional capacitor? Is it possible for customer to make its frequency response lower by using additional electronic, e.g. high order low-pass filters?
May I get an SPI manual for reading the t, x, y information from the SCA100T?
How can inclination angles be read from SCA100T in digital format?
Are the SCA610/620 products known to have any EMI emission problems?
Is the self test pin input DC or AC and what is the maximum input quantity?
Why does the output signal of SCA61T inclinometer fluctuate in my application?
Does the SCA61T and SCA100T work with 3V power supply?
Others
What is functional form of the inclinometer output?
Is there a way to save calibration data into SCA 61T/100T via SPI by customer?
How does the field programmable temperature compensation work?
I would like to do the field programmable mounting error compensation for the SCA100T and SCA61T series inclinometers, and programming the eeprom using the SPI interface.
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