User Manual
LDT with Crimps Vibration Sensor/Switch
LDT0-028K Piezo Vibration Rev 1  www.meas-spec.com  10/13/2008 
  4 of 4 
The information in this sheet has been carefully reviewed and is believed to be accurate; however, no responsibility is assumed for 
inaccuracies. Furthermore, this information does not 
convey to the purchaser of such devices any license under the patent rights to the manufacturer. Measurement Specialties, Inc. reserves the right to make changes without further notice 
to  any  product  her
ein.  Measurement  Specialties,  Inc.  makes  no  warranty,  representation  or  guarantee  regarding  the  suitability  of  its  product  for  any  particular  purpose,  nor  does 
Measurement Specialties, Inc. assume any liability arising out of the application or use of any 
product or circuit and specifically disclaims any and all liability, including without limitation 
consequential  or  incidental  damages.  Typical  parameters  can  and  do  vary  in  different  applications.  All  operating  parameters  must  be  validated  for  each  custome
r  application  by 
customer’s technical experts. Measurement Specialties, Inc. does not convey any license under its patent rights nor the rights of others. 
ordering information 
Description
Part Number
LDT0-028K    1002794-0 
LDTM-028K    1005447-1 
North America 
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Technical Support 
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TABLE 
4
: LDT0 Clamped at Different Lengths (See Fig. 4)
Length Beyond 
Clamp 
Resonant 
Frequency 
Settling Time 
(5 cyc) 
20 mm (no clamp) 
180 Hz 
28 msec 
16 mm 
250 Hz 
20 msec 
11 mm 
500 Hz 
10 msec 
7 mm 
1000 Hz 
5 msec 
Experiment #4
LDT0 Clamped at Different Lengths 
- 
using simple clamping fixture, the vibration 
sensitivity was measured (as in (1) above) as 
the clamp was moved to allow different "free" 
lengths to vibrate. The sensor may be "tuned" 
to suit specific frequency response 
requirements (see Table 4, Fig. 4). 




