Seismic sensor and accelerometer

Click For Summary
Seismic sensors and accelerometers both detect vibrations, but they serve different purposes. Seismic sensors specifically monitor Earth vibrations, often utilizing specialized accelerometers, while accelerometers can be designed for various applications, such as airbag deployment. Additionally, seismic sensors may employ different principles beyond those of standard accelerometers. Historical records indicate that the earliest seismic sensors were acoustic devices developed around 400 BC for detecting intruders. Understanding these distinctions is crucial for selecting the appropriate technology for vibration sensing needs.
masprem_78
Messages
1
Reaction score
0
Both Seismic sensors and accelerometers are used for sensing vibration. Then what is the difference between them?
 
Physics news on Phys.org
The goal of a seismic sensor is to monitor Earth vibrations. It can be based on an accelerometer specifically designed for this application. But accelerometers can be designed for other applications, such as airbag sensing. In this case, they are not seismic sensors. Also, principles different than accelerometers may be used for developing seismic sensors.
 
The first seismic sensors that I'm aware of were acoustic. It was mentioned in a Chinese document from somewhere around 400 BC, and was designed to detect intruders.
 

Thread 'Mousetrap Car Energy efficiency'

For simple comparison, I think the same thought process can be followed as a block slides down a hill, - for block down hill, simple starting PE of mgh to final max KE 0.5mv^2 - comparing PE1 to max KE2 would result in finding the work friction did through the process. efficiency is just 100*KE2/PE1. If a mousetrap car travels along a flat surface, a starting PE of 0.5 k th^2 can be measured and maximum velocity of the car can also be measured. If energy efficiency is defined by...
View full post »

Similar threads

How does Quadruple Pendulum isolate LIGO from Seismic Vibrations?
  • · Replies 6 ·
Replies
6
Views
2K
Find the Acceleration and Distance from the Output of an Accelerometer Sensor
  • · Replies 11 ·
Replies
11
Views
24K
Undergrad Does a rotating accelerometer moving linearly measure linear velocity?
  • · Replies 47 ·
2
Replies
47
Views
4K
How Can I Relate Measurements from a Gyroscope and Accelerometer?
  • · Replies 1 ·
Replies
1
Views
2K
Undergrad G Force Calculation Optimisation with camera, equations & accelerometer (drop testing)
  • · Replies 4 ·
Replies
4
Views
1K
Force felt by the accelerometer in a smartphone
  • · Replies 3 ·
Replies
3
Views
2K
Units For a Power Spectral Density (PSD)
  • · Replies 3 ·
Replies
3
Views
3K
Dark fiber optic cables as Earthquake detectors
  • · Replies 9 ·
Replies
9
Views
2K
Free fall detect of rotating object
  • · Replies 10 ·
Replies
10
Views
3K
Probabilistic Seismic Hazard Analysis (PSHA) - Identification of area sources
  • · Replies 1 ·
Replies
1
Views
3K